> Quick answer: The exact payback period for a 2000-lumen solar lamp replacing a 150W grid-powered security light cannot be determined due to missing data on power consumption, electricity cost, and equipment price [1][6][7].
While the idea of switching from traditional grid-powered lights to energy-efficient solar lamps is enticing, calculating the exact payback period requires precise information that isn’t readily available in current research. Here’s what we know:
How Solar Lamps Operate on a Dusk-to-Dawn Schedule
Several sources confirm that 2000-lumen solar lamps operate on automatic dusk-to-dawn schedules via integrated photocells [1][2][3][4][11][12][13][14][20][21][22][23]. This means the lamp turns on at night and off in the morning, similarly to a 150W grid-powered security light. However, without knowing the exact power draw of the solar lamp, it’s challenging to compare its energy efficiency directly.
Power Consumption and Energy Efficiency
One source mentions that a 40W solar street light can produce up to 4000 lumens, suggesting that a 2000-lumen model would likely consume less than 40W. The actual wattage for the 2000-lumen lamp is not specified, but it could be in the range of 10–20W depending on efficiency [20][21][22][22].
Cost of Electricity and Payback Calculation
The cost of electricity is a crucial factor in determining payback periods. One source cites a standard rate of $0.12 per kWh, which could serve as a benchmark for commercial pricing. However, this cost needs to be tied directly to the scenario of replacing grid-powered lights with solar lamps [6]. Without knowing the local electricity rates and the actual power consumption of the solar lamp, it’s impossible to quantify annual savings or the payback period.
Purchase Price and Initial Investment
The research mentions warranties ranging from 1-year to 3-years and durability over 5 years. However, no specific purchase prices are provided for a 2000-lumen lamp [1][2][3][4][11][12][13][14][20][21][22][23]. Without the initial investment cost of the solar lamp, it’s impossible to calculate its financial payback.
Operational Modes and Energy Savings
Some sources describe solar lights that operate continuously throughout the night [1][2][3][4][11][12][13][14][20][21][22][23], while others mention motion-sensor modes that reduce power usage. A 2000-lumen lamp may operate in a dimmed or motion-activated mode to conserve battery life [25]. This dynamic power use could significantly impact energy consumption and payback period estimates.
Robustness and Durability
The sources highlight the resilience of solar lamps, noting they can withstand extreme temperatures from -49°F to 113°F and charge even in ice or snow on the panel. This robust design supports long-term reliability but doesn’t directly impact financial calculations [20][21][22][23].
Key Takeaways
- Operational Schedules: Solar lamps automatically turn on at dusk and off at dawn via photocells.
- Power Consumption Uncertainty: The exact wattage of a 2000-lumen solar lamp is unknown, impacting energy savings calculations.
- Cost Factors Missing: Without electricity rates, equipment costs, and actual power consumption data, an accurate payback period cannot be determined.
Frequently Asked Questions
„`json
[
{
„q”: „How do solar lamps operate on a dusk-to-dawn schedule?”,
„a”: „Solar lamps automatically turn on at nightfall via integrated photocells [1][2][3][4][11][12][13][14][20][21][22][23].”
},
{
„q”: „What is the power consumption of a 2000-lumen solar lamp?”,
„a”: „The exact wattage is not specified, but it likely consumes less than 40W for a similar brightness level [20][21][22][23].”
},
{
„q”: „How does the cost of electricity affect payback period calculations?”,
„a”: „Electricity rates are crucial; without knowing local costs, annual savings and payback periods cannot be quantified [6].”
}
]
„`
References
- [1] 10_Best_Solar_Street_Lights_-_High_Brightness_Solar_Lights__fa826f6f — reddit
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After that period we provide 3-years warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the hottest temperatures up to 113 ºF. These decorative Solar Lights have a unique wide-angle design with 3 LEDs on each side that can provide an excellent angle of illumination of up to 1000 lumens, which makes the 6 LED Solar Wall Light much brighter than other similar solar powered outdoor lights in the market. These outdoor Solar Lights have integrated two different lighting modes. These two modes can cope with different usage scenarios, plus they are quite suitable for ga
- [2] Long_Lasting_Solar_Lights_-_100_Best_Outdoor_Solar_Lights__86f04cb5 — reddit
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After that period we provide 3-years warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the hottest temperatures up to 113 ºF. These decorative Solar Lights have a unique wide-angle design with 3 LEDs on each side that can provide an excellent angle of illumination of up to 1000 lumens, which makes the 6 LED Solar Wall Light much brighter than other similar solar powered outdoor lights in the market. These outdoor Solar Lights have integrated two different lighting modes. These two modes can cope with different usage scenarios, plus they are quite suitable for ga
- [3] Led_Solar_Street_Light_-_High_Brightness_Solar_Lights__af10d99a — patent
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After that period we provide 3-years warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the hottest temperatures up to 113 ºF. These decorative Solar Lights have a unique wide-angle design with 3 LEDs on each side that can provide an excellent angle of illumination of up to 1000 lumens, which makes the 6 LED Solar Wall Light much brighter than other similar solar powered outdoor lights in the market. These outdoor Solar Lights have integrated two different lighting modes. These two modes can cope with different usage scenarios, plus they are quite suitable for ga
- [4] Outdoor_Solar_Garden_Lights_-_100_Best_Outdoor_Solar_Lights__366bd5aa — blog
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After that period we provide 3-years warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the hottest temperatures up to 113 ºF. These decorative Solar Lights have a unique wide-angle design with 3 LEDs on each side that can provide an excellent angle of illumination of up to 1000 lumens, which makes the 6 LED Solar Wall Light much brighter than other similar solar powered outdoor lights in the market. These outdoor Solar Lights have integrated two different lighting modes. These two modes can cope with different usage scenarios, plus they are quite suitable for ga
- [6] LED_Lighting_in_Museums_and_Art_Galleries_Technical_-_Canadaca__7f9b6307 — authority
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$0.12 per kWh. We have added a calculation for the common situation where an equal number of luminaires would be used (32). Source: DOE (2010). Demonstration Assessment of Light-emitting Diode (LED) Accent Lighting. Prepared by Pacific Northwest National Laboratory under Contract DE-AC05-76RL01830. Using the data of Table 2, one obtains a payback time based on electricity costs alone of 3.3 years for the 26 luminaires and 17 years for a one-to-one replacement (32 LEDs). In this project, the DOE estimated a reduction in payback time of about 35% if one included electrical savings due to lower cooling costs plus lower costs for lamp maintenance. This would mean a payback time of about 11 years for one-to-one replacement. The Field Museum noted that as the LEDs were dimmed by the control system, the illuminance decreased but the measured current did not. This has been noted by others as well and means that although the LEDs save significant energy, any further savings from dimming may be small. All three sustainability pillars drive decisions to implement lighting conversions as described above. The economic pillar drives the long-term reduction of electrical costs and maintenance costs; the social pillar drives the museum’s goal of heritage preservation; and the environmental pillar drives the selection of lower energy and lower toxicity solutions. A comparison of incandescent, CFL and LED lamps using life-cycle assessment of energy and environmental impacts done by DOE (2013)
- [7] 10_Best_Solar_Street_Lights_-_High_Brightness_Solar_Lights__fa826f6f — reddit
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ºF. Package Includes: – Mounting Bracket – 4 Screws per mounting bracket – 4 Nuts per mounting bracket – 1 back plate per mounting bracket The 175W Solar Street Light 17500 Lumens features powerful LED solar lights that deliver exceptional brightness for all your outdoor needs. This versatile solar lamp post light is designed for a wide range of applications, from solar garden lights and solar lights for backyard to large areas like parking lot solar lighting, solar arena lights, and solar powered street lights residential. Built with durability in mind, this solar lamp is fully self-contained, offering the ideal solar lighting system for both residential and commercial spaces. Experience the convenience of dusk to dawn solar light operation and energy-efficient illumination, all while reducing your carbon footprint. FEATURES ● Brighter than Ever: provides up to 17500 lumens, perfect for solar lights for driveway, solar lights for outdoor wall, and solar lights for house numbers. ● All-In-One Design: Easy DIY installation with no external wiring needed. Ideal for both residential solar lights and commercial solar parking lot lights. ● Weatherproof & Durable: Rustproof, weather-resistant design, built to withstand sun, rain, or snow. Perfect for solar lights for outdoor trees or solar lights for garage. ● Energy-Efficient: No electricity required—powered entirely by solar energy, saving you money on power bills. ● Lighting Modes: Includes 3 lighting modes (Always ON, Brightnes
- [11] 10_Best_Solar_Street_Lights_-_High_Brightness_Solar_Lights__fa826f6f — reddit
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night with only 5 hours of sunlight – Warranty: 1-year warranty – Durability: Over 5 years – 60 Days Money Back Guaranteed First Mode: The light will stay OFF and barely detects movement it will use all its power to light up the area (100% Solar Motion Sensor Light) Second Mode: The light will stay ON all night long Third Mode: 30% of brightness and barely detects movement it will use all its power to light up the area (DIM Solar Light Mode) All these modes are controlled by using the switch in the back of the light FREQUENTLY ASKED QUESTIONS – How long does delivery take? – After placing your order, you can expect your package to arrive in 3-5 days via FedEx. We offer FREE Shipping on all orders. Our warehouses are based in: – Los Angeles, California. United States. – What's the company's warranty policy? – We offer 60 days money-back guarantee. After that period we provide 1-year warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OF
- [12] Long_Lasting_Solar_Lights_-_100_Best_Outdoor_Solar_Lights__86f04cb5 — reddit
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night with only 5 hours of sunlight – Warranty: 1-year warranty – Durability: Over 5 years – 60 Days Money Back Guaranteed First Mode: The light will stay OFF and barely detects movement it will use all its power to light up the area (100% Solar Motion Sensor Light) Second Mode: The light will stay ON all night long Third Mode: 30% of brightness and barely detects movement it will use all its power to light up the area (DIM Solar Light Mode) All these modes are controlled by using the switch in the back of the light FREQUENTLY ASKED QUESTIONS – How long does delivery take? – After placing your order, you can expect your package to arrive in 3-5 days via FedEx. We offer FREE Shipping on all orders. Our warehouses are based in: – Los Angeles, California. United States. – What's the company's warranty policy? – We offer 60 days money-back guarantee. After that period we provide 1-year warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OF
- [13] Led_Solar_Street_Light_-_High_Brightness_Solar_Lights__af10d99a — patent
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night with only 5 hours of sunlight – Warranty: 1-year warranty – Durability: Over 5 years – 60 Days Money Back Guaranteed First Mode: The light will stay OFF and barely detects movement it will use all its power to light up the area (100% Solar Motion Sensor Light) Second Mode: The light will stay ON all night long Third Mode: 30% of brightness and barely detects movement it will use all its power to light up the area (DIM Solar Light Mode) All these modes are controlled by using the switch in the back of the light FREQUENTLY ASKED QUESTIONS – How long does delivery take? – After placing your order, you can expect your package to arrive in 3-5 days via FedEx. We offer FREE Shipping on all orders. Our warehouses are based in: – Los Angeles, California. United States. – What's the company's warranty policy? – We offer 60 days money-back guarantee. After that period we provide 1-year warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OF
- [14] Outdoor_Solar_Garden_Lights_-_100_Best_Outdoor_Solar_Lights__366bd5aa — blog
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night with only 5 hours of sunlight – Warranty: 1-year warranty – Durability: Over 5 years – 60 Days Money Back Guaranteed First Mode: The light will stay OFF and barely detects movement it will use all its power to light up the area (100% Solar Motion Sensor Light) Second Mode: The light will stay ON all night long Third Mode: 30% of brightness and barely detects movement it will use all its power to light up the area (DIM Solar Light Mode) All these modes are controlled by using the switch in the back of the light FREQUENTLY ASKED QUESTIONS – How long does delivery take? – After placing your order, you can expect your package to arrive in 3-5 days via FedEx. We offer FREE Shipping on all orders. Our warehouses are based in: – Los Angeles, California. United States. – What's the company's warranty policy? – We offer 60 days money-back guarantee. After that period we provide 1-year warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OF
- [20] 10_Best_Solar_Street_Lights_-_High_Brightness_Solar_Lights__fa826f6f — reddit
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lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the heatest temperatures up to 113 ºF. This 40W Solar Street Light 4000 Lumens features super-bright LEDs that will light up the dark in a matter of seconds. Designed and built for a wide range of lighting applications such as commercial and industrial buildings, parking lots, street, pathway lights, playground, farms, parks and large area Residential and Recreational lighting. This high quality built and very durable light is completely self-contained. Its innovative smart lighting profiles offer true Dusk to Dawn all night lighting capability. It offers flexibility for critical weather and variations of geographic locations and it is able to automatically manage the critical status of the battery. An All In One Design! Light up even the largest areas with the 500W Solar Street Light 50000 Lumens, the most powerful and efficient solar street
- [21] Long_Lasting_Solar_Lights_-_100_Best_Outdoor_Solar_Lights__86f04cb5 — reddit
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lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the heatest temperatures up to 113 ºF. This 40W Solar Street Light 4000 Lumens features super-bright LEDs that will light up the dark in a matter of seconds. Designed and built for a wide range of lighting applications such as commercial and industrial buildings, parking lots, street, pathway lights, playground, farms, parks and large area Residential and Recreational lighting. This high quality built and very durable light is completely self-contained. Its innovative smart lighting profiles offer true Dusk to Dawn all night lighting capability. It offers flexibility for critical weather and variations of geographic locations and it is able to automatically manage the critical status of the battery. An All In One Design! Light up even the largest areas with the 500W Solar Street Light 50000 Lumens, the most powerful and efficient solar street
- [22] Led_Solar_Street_Light_-_High_Brightness_Solar_Lights__af10d99a — patent
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lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the heatest temperatures up to 113 ºF. This 40W Solar Street Light 4000 Lumens features super-bright LEDs that will light up the dark in a matter of seconds. Designed and built for a wide range of lighting applications such as commercial and industrial buildings, parking lots, street, pathway lights, playground, farms, parks and large area Residential and Recreational lighting. This high quality built and very durable light is completely self-contained. Its innovative smart lighting profiles offer true Dusk to Dawn all night lighting capability. It offers flexibility for critical weather and variations of geographic locations and it is able to automatically manage the critical status of the battery. An All In One Design! Light up even the largest areas with the 500W Solar Street Light 50000 Lumens, the most powerful and efficient solar street
- [23] Outdoor_Solar_Garden_Lights_-_100_Best_Outdoor_Solar_Lights__366bd5aa — blog
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lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the heatest temperatures up to 113 ºF. This 40W Solar Street Light 4000 Lumens features super-bright LEDs that will light up the dark in a matter of seconds. Designed and built for a wide range of lighting applications such as commercial and industrial buildings, parking lots, street, pathway lights, playground, farms, parks and large area Residential and Recreational lighting. This high quality built and very durable light is completely self-contained. Its innovative smart lighting profiles offer true Dusk to Dawn all night lighting capability. It offers flexibility for critical weather and variations of geographic locations and it is able to automatically manage the critical status of the battery. An All In One Design! Light up even the largest areas with the 500W Solar Street Light 50000 Lumens, the most powerful and efficient solar street
- [25] US4982176A_-_Solar_powered_lighting_and_alarm_-_Google_Patents__2a7f5e5c — patent
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to prevent the system from turning on lamp 40 unless the dual requirements of low background light level (i.e darkness) sensed by the photocell 80, and the detection of a moving object sensed by PIR detector 50 are met. In this manner, the battery charge is maintained, as charge is not wasted by lighting lamp 40 during the daytime. Similarly, the adjustable timer 74 part of the light control logic and timing circuit 70, which is indicated as a potentiometer, but which may take any of numerous forms well known in the arts, is utilized to limit the drain on battery 30. Effectively, timer 74 closes the circuit between the battery and the lamp 40 for a predetermined period of time (e.g. three minutes) when the AND gate provides a positive output. After the predetermined period of time, (which can be set in the preferred embodiment for between thirty seconds and thirty minutes by the user via the turning of a knob), the timer 74 opens the circuit between the battery 30 and the lamp 40, thereby turning off the lamp 40 and having the charge on the battery 30. The lamp 40 of the system 10 is a bulb with a rating of at least one, and preferably three to five watts, and is powered by battery 30 via light control circuit 70. The lamp is associated with spherical reflectors or mirrors 72a and 72b which reflect the relatively large amount of light towards the area where it is needed With the reflectors 72 and the relatively high watt bulb, high brightness and efficient illumination are ac
After that period we provide 3-years warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the hottest temperatures up to 113 ºF. These decorative Solar Lights have a unique wide-angle design with 3 LEDs on each side that can provide an excellent angle of illumination of up to 1000 lumens, which makes the 6 LED Solar Wall Light much brighter than other similar solar powered outdoor lights in the market. These outdoor Solar Lights have integrated two different lighting modes. These two modes can cope with different usage scenarios, plus they are quite suitable for ga
After that period we provide 3-years warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the hottest temperatures up to 113 ºF. These decorative Solar Lights have a unique wide-angle design with 3 LEDs on each side that can provide an excellent angle of illumination of up to 1000 lumens, which makes the 6 LED Solar Wall Light much brighter than other similar solar powered outdoor lights in the market. These outdoor Solar Lights have integrated two different lighting modes. These two modes can cope with different usage scenarios, plus they are quite suitable for ga
After that period we provide 3-years warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the hottest temperatures up to 113 ºF. These decorative Solar Lights have a unique wide-angle design with 3 LEDs on each side that can provide an excellent angle of illumination of up to 1000 lumens, which makes the 6 LED Solar Wall Light much brighter than other similar solar powered outdoor lights in the market. These outdoor Solar Lights have integrated two different lighting modes. These two modes can cope with different usage scenarios, plus they are quite suitable for ga
After that period we provide 3-years warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the hottest temperatures up to 113 ºF. These decorative Solar Lights have a unique wide-angle design with 3 LEDs on each side that can provide an excellent angle of illumination of up to 1000 lumens, which makes the 6 LED Solar Wall Light much brighter than other similar solar powered outdoor lights in the market. These outdoor Solar Lights have integrated two different lighting modes. These two modes can cope with different usage scenarios, plus they are quite suitable for ga
$0.12 per kWh. We have added a calculation for the common situation where an equal number of luminaires would be used (32). Source: DOE (2010). Demonstration Assessment of Light-emitting Diode (LED) Accent Lighting. Prepared by Pacific Northwest National Laboratory under Contract DE-AC05-76RL01830. Using the data of Table 2, one obtains a payback time based on electricity costs alone of 3.3 years for the 26 luminaires and 17 years for a one-to-one replacement (32 LEDs). In this project, the DOE estimated a reduction in payback time of about 35% if one included electrical savings due to lower cooling costs plus lower costs for lamp maintenance. This would mean a payback time of about 11 years for one-to-one replacement. The Field Museum noted that as the LEDs were dimmed by the control system, the illuminance decreased but the measured current did not. This has been noted by others as well and means that although the LEDs save significant energy, any further savings from dimming may be small. All three sustainability pillars drive decisions to implement lighting conversions as described above. The economic pillar drives the long-term reduction of electrical costs and maintenance costs; the social pillar drives the museum’s goal of heritage preservation; and the environmental pillar drives the selection of lower energy and lower toxicity solutions. A comparison of incandescent, CFL and LED lamps using life-cycle assessment of energy and environmental impacts done by DOE (2013)
ºF. Package Includes: – Mounting Bracket – 4 Screws per mounting bracket – 4 Nuts per mounting bracket – 1 back plate per mounting bracket The 175W Solar Street Light 17500 Lumens features powerful LED solar lights that deliver exceptional brightness for all your outdoor needs. This versatile solar lamp post light is designed for a wide range of applications, from solar garden lights and solar lights for backyard to large areas like parking lot solar lighting, solar arena lights, and solar powered street lights residential. Built with durability in mind, this solar lamp is fully self-contained, offering the ideal solar lighting system for both residential and commercial spaces. Experience the convenience of dusk to dawn solar light operation and energy-efficient illumination, all while reducing your carbon footprint. FEATURES ● Brighter than Ever: provides up to 17500 lumens, perfect for solar lights for driveway, solar lights for outdoor wall, and solar lights for house numbers. ● All-In-One Design: Easy DIY installation with no external wiring needed. Ideal for both residential solar lights and commercial solar parking lot lights. ● Weatherproof & Durable: Rustproof, weather-resistant design, built to withstand sun, rain, or snow. Perfect for solar lights for outdoor trees or solar lights for garage. ● Energy-Efficient: No electricity required—powered entirely by solar energy, saving you money on power bills. ● Lighting Modes: Includes 3 lighting modes (Always ON, Brightnes
night with only 5 hours of sunlight – Warranty: 1-year warranty – Durability: Over 5 years – 60 Days Money Back Guaranteed First Mode: The light will stay OFF and barely detects movement it will use all its power to light up the area (100% Solar Motion Sensor Light) Second Mode: The light will stay ON all night long Third Mode: 30% of brightness and barely detects movement it will use all its power to light up the area (DIM Solar Light Mode) All these modes are controlled by using the switch in the back of the light FREQUENTLY ASKED QUESTIONS – How long does delivery take? – After placing your order, you can expect your package to arrive in 3-5 days via FedEx. We offer FREE Shipping on all orders. Our warehouses are based in: – Los Angeles, California. United States. – What's the company's warranty policy? – We offer 60 days money-back guarantee. After that period we provide 1-year warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OF
night with only 5 hours of sunlight – Warranty: 1-year warranty – Durability: Over 5 years – 60 Days Money Back Guaranteed First Mode: The light will stay OFF and barely detects movement it will use all its power to light up the area (100% Solar Motion Sensor Light) Second Mode: The light will stay ON all night long Third Mode: 30% of brightness and barely detects movement it will use all its power to light up the area (DIM Solar Light Mode) All these modes are controlled by using the switch in the back of the light FREQUENTLY ASKED QUESTIONS – How long does delivery take? – After placing your order, you can expect your package to arrive in 3-5 days via FedEx. We offer FREE Shipping on all orders. Our warehouses are based in: – Los Angeles, California. United States. – What's the company's warranty policy? – We offer 60 days money-back guarantee. After that period we provide 1-year warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OF
night with only 5 hours of sunlight – Warranty: 1-year warranty – Durability: Over 5 years – 60 Days Money Back Guaranteed First Mode: The light will stay OFF and barely detects movement it will use all its power to light up the area (100% Solar Motion Sensor Light) Second Mode: The light will stay ON all night long Third Mode: 30% of brightness and barely detects movement it will use all its power to light up the area (DIM Solar Light Mode) All these modes are controlled by using the switch in the back of the light FREQUENTLY ASKED QUESTIONS – How long does delivery take? – After placing your order, you can expect your package to arrive in 3-5 days via FedEx. We offer FREE Shipping on all orders. Our warehouses are based in: – Los Angeles, California. United States. – What's the company's warranty policy? – We offer 60 days money-back guarantee. After that period we provide 1-year warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OF
night with only 5 hours of sunlight – Warranty: 1-year warranty – Durability: Over 5 years – 60 Days Money Back Guaranteed First Mode: The light will stay OFF and barely detects movement it will use all its power to light up the area (100% Solar Motion Sensor Light) Second Mode: The light will stay ON all night long Third Mode: 30% of brightness and barely detects movement it will use all its power to light up the area (DIM Solar Light Mode) All these modes are controlled by using the switch in the back of the light FREQUENTLY ASKED QUESTIONS – How long does delivery take? – After placing your order, you can expect your package to arrive in 3-5 days via FedEx. We offer FREE Shipping on all orders. Our warehouses are based in: – Los Angeles, California. United States. – What's the company's warranty policy? – We offer 60 days money-back guarantee. After that period we provide 1-year warranty for replacements in case it is needed. – What type of Photocell do the lights use? – Our LED solar lights work with photocell dusk to dawn which means that they will automatically turn ON and OFF with the sense of natural light, plus they can be manually turned ON and OFF by using the switch/button that is integrated with the lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OF
lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the heatest temperatures up to 113 ºF. This 40W Solar Street Light 4000 Lumens features super-bright LEDs that will light up the dark in a matter of seconds. Designed and built for a wide range of lighting applications such as commercial and industrial buildings, parking lots, street, pathway lights, playground, farms, parks and large area Residential and Recreational lighting. This high quality built and very durable light is completely self-contained. Its innovative smart lighting profiles offer true Dusk to Dawn all night lighting capability. It offers flexibility for critical weather and variations of geographic locations and it is able to automatically manage the critical status of the battery. An All In One Design! Light up even the largest areas with the 500W Solar Street Light 50000 Lumens, the most powerful and efficient solar street
lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the heatest temperatures up to 113 ºF. This 40W Solar Street Light 4000 Lumens features super-bright LEDs that will light up the dark in a matter of seconds. Designed and built for a wide range of lighting applications such as commercial and industrial buildings, parking lots, street, pathway lights, playground, farms, parks and large area Residential and Recreational lighting. This high quality built and very durable light is completely self-contained. Its innovative smart lighting profiles offer true Dusk to Dawn all night lighting capability. It offers flexibility for critical weather and variations of geographic locations and it is able to automatically manage the critical status of the battery. An All In One Design! Light up even the largest areas with the 500W Solar Street Light 50000 Lumens, the most powerful and efficient solar street
lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the heatest temperatures up to 113 ºF. This 40W Solar Street Light 4000 Lumens features super-bright LEDs that will light up the dark in a matter of seconds. Designed and built for a wide range of lighting applications such as commercial and industrial buildings, parking lots, street, pathway lights, playground, farms, parks and large area Residential and Recreational lighting. This high quality built and very durable light is completely self-contained. Its innovative smart lighting profiles offer true Dusk to Dawn all night lighting capability. It offers flexibility for critical weather and variations of geographic locations and it is able to automatically manage the critical status of the battery. An All In One Design! Light up even the largest areas with the 500W Solar Street Light 50000 Lumens, the most powerful and efficient solar street
lights. – How long the lights stay ON during the night? – Our outdoor solar lights can stay ON all night long. – Do they need any wires for installation? – Our solar lights are 100% wires free. All you have to do is putting it in the desired place, push the turn ON/OFF button in the lamp, and that's it. That simple! – What is the minimum and maximum temperature that the lights can withstand? – Our solar panel lights are built with the highest quality materials, that's the reason they withstand the coldest temperatures up to -49 ºF and they can even get charged with ice/snow on the Solar Panel. On the other hand, they can support as well the heatest temperatures up to 113 ºF. This 40W Solar Street Light 4000 Lumens features super-bright LEDs that will light up the dark in a matter of seconds. Designed and built for a wide range of lighting applications such as commercial and industrial buildings, parking lots, street, pathway lights, playground, farms, parks and large area Residential and Recreational lighting. This high quality built and very durable light is completely self-contained. Its innovative smart lighting profiles offer true Dusk to Dawn all night lighting capability. It offers flexibility for critical weather and variations of geographic locations and it is able to automatically manage the critical status of the battery. An All In One Design! Light up even the largest areas with the 500W Solar Street Light 50000 Lumens, the most powerful and efficient solar street
to prevent the system from turning on lamp 40 unless the dual requirements of low background light level (i.e darkness) sensed by the photocell 80, and the detection of a moving object sensed by PIR detector 50 are met. In this manner, the battery charge is maintained, as charge is not wasted by lighting lamp 40 during the daytime. Similarly, the adjustable timer 74 part of the light control logic and timing circuit 70, which is indicated as a potentiometer, but which may take any of numerous forms well known in the arts, is utilized to limit the drain on battery 30. Effectively, timer 74 closes the circuit between the battery and the lamp 40 for a predetermined period of time (e.g. three minutes) when the AND gate provides a positive output. After the predetermined period of time, (which can be set in the preferred embodiment for between thirty seconds and thirty minutes by the user via the turning of a knob), the timer 74 opens the circuit between the battery 30 and the lamp 40, thereby turning off the lamp 40 and having the charge on the battery 30. The lamp 40 of the system 10 is a bulb with a rating of at least one, and preferably three to five watts, and is powered by battery 30 via light control circuit 70. The lamp is associated with spherical reflectors or mirrors 72a and 72b which reflect the relatively large amount of light towards the area where it is needed With the reflectors 72 and the relatively high watt bulb, high brightness and efficient illumination are ac