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2. Solar lamp - Wikipedia

   en.wikipedia.org/wiki/Solar_lamp

   A garden solar lamp A child in Zambia studying by the light of a lamp charged by solar power during the day. A solar lamp, also known as a solar light or solar lantern, is a lighting system composed of an LED lamp, solar panels, battery, charge controller and there may also be an inverter.

3. Solar street light - Wikipedia

   en.wikipedia.org/wiki/Solar_street_light

   A solar street light in British Columbia, Canada. The solar panel is one of the most important parts of a solar street light, as the solar panel can convert solar energy into electricity that the lamps can use. There are two types of solar panels commonly used in solar street lights: monocrystalline and polycrystalline. The conversion rate of ...

4. List of spacewalks 2015–2024 - Wikipedia

   en.wikipedia.org/wiki/List_of_spacewalks_2015–2024

   The crew completed the installation of new batteries on the Station's power channel 3A, and then executed a series of tasks to get ahead for the next EVA. Kimbrough collected photos of the AMS-02, then they removed a broken light on the S3 truss and routed Ethernet cables on the Z1 truss. 386 13 January 11:22 5 hours, 58 minutes 17:20 Expedition 50

5. Liter of Light - Wikipedia

   en.wikipedia.org/wiki/Liter_of_Light

   Liter of Light Bangladesh was started by Shanjidul Alam Seban Shaan under Lights Foundation in 2015 in Chittagong. [14] [15] They made a local version of the bottle light called 'Botol Bati', which costs around $2–2.50 USD and lasts for 4–5 years. They aim to spread awareness of bottle lights to remote areas by training local school students.

6. Rooftop solar power - Wikipedia

   en.wikipedia.org/wiki/Rooftop_solar_power

   Thin film solar is light weight at 7–10 ounces per square foot. Thin film solar panels last 10–20 years [23] but have a quicker ROI than traditional solar panels, the metal roofs last 40–70 years before replacement compared to 12–20 years for an asphalt shingle roof. [24] [25]

7. Renewable energy - Wikipedia

   en.wikipedia.org/wiki/Renewable_energy

   Swanson's law–stating that solar module prices have dropped about 20% for each doubling of installed capacity—defines the "learning rate" of solar photovoltaics. [63] [64] A photovoltaic system, consisting of solar cells assembled into panels, converts light into electrical direct current via the photoelectric effect. [65]