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  2. Liter of Light - Wikipedia

    en.wikipedia.org/wiki/Liter_of_Light

    Liter of Light is an open source design for a low-cost light tube (or deck prism or vault light) that refracts solar light to provide daytime interior lighting for dwellings with thin roofs. Daylighting is cheaper than using indoor electric lights during the day.

  3. Light tube - Wikipedia

    en.wikipedia.org/wiki/Light_tube

    Total external reflection, hollow light tube Total internal reflection, block of acrylic. Light tubes (also known as solar pipes, tubular skylights or sun tunnels [1]) are structures that transmit or distribute natural or artificial light for the purpose of illumination and are examples of optical waveguides.

  4. Unite to Light - Wikipedia

    en.wikipedia.org/wiki/Unite_to_Light

    Since 2010, Unite to Light has distributed this solar light throughout the globe. In 2012 the solar light was renamed the Luke Light [5] in honor of 19-year-old graduate Lucas Voss-Kernan, who had passed away that year and in whose name a fundraiser was held to donate lights to off-the-grid Kenyan communities. [6] In 2014 Unite to Light ...

  5. 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.

  6. Solar energy - Wikipedia

    en.wikipedia.org/wiki/Solar_energy

    Solar energy is the radiant energy from the Sun's light and heat, which can be harnessed using a range of technologies such as solar electricity, solar thermal energy (including solar water heating) and solar architecture.

  7. When and where to see the northern lights after the latest ...

    www.aol.com/where-see-northern-lights-latest...

    MORE: Northern lights on display across the eastern US amid 'severe' solar storm The best times to view the northern lights are between 10 p.m. and 2 a.m. local time, according to NOAA.