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2. 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.

3. Daylighting (architecture) - Wikipedia

   en.wikipedia.org/wiki/Daylighting_(architecture)

   Solar street lights are stand-alone power systems, and have the advantage of savings on trenching, landscaping, and maintenance costs, as well as on the electric bills, despite their higher initial cost compared to conventional street lighting. They are designed with sufficiently large batteries to ensure operation for at least a week and even ...

4. 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.

5. Solar tube - Wikipedia

   en.wikipedia.org/wiki/Solar_tube

   A solar tube may refer to: Evacuated tube collector – a type of high efficiency solar thermal collector; Light tube This page was last edited on 24 ...

6. 7 Best Christmas Items at Home Depot That Can Be Reused ... - AOL

   www.aol.com/finance/7-best-christmas-items-home...

   The lights come in all the usual fun colors and are energy-efficient. The set also comes with four extra bulbs and three fuses, so you can replace any that go out. ... 7 Best Christmas Items at ...

7. Halogen lamp - Wikipedia

   en.wikipedia.org/wiki/Halogen_lamp

   Halogen lamps made for 12 to 24 volt operation have good light outputs, and the very compact filaments are particularly beneficial for optical control (see picture). The ranges of multifaceted reflector "MR" lamps of 20–50 watts were originally conceived for the projection of 8 mm film, but are now widely used for display lighting and in the ...