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2. Solar street light - Wikipedia

   en.wikipedia.org/wiki/Solar_street_light

   Strong poles are necessary to all street lights, especially to solar street lights as there are often components mounted on the top of the pole: fixtures, panels and sometimes batteries. However, in some newer designs, the PV panels and all electronics are integrated in the pole itself. Wind resistance is also a factor.

3. Sundial - Wikipedia

   en.wikipedia.org/wiki/Sundial

   The rays of light that graze the tip of a gnomon, or which pass through a small hole, or reflect from a small mirror, trace out a cone aligned with the celestial poles. The corresponding light-spot or shadow-tip, if it falls onto a flat surface, will trace out a conic section, such as a hyperbola, ellipse or (at the North or South Poles) a circle.

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. Northern lights forecast for northern US, Midwest this week ...

   www.aol.com/northern-lights-forecast-northern-us...

   The aurora is expected to be bright and visible in multiple northern U.S. states Oct. 3 through Oct. 5 as well as from the lower Midwest to Oregon.

6. A powerful solar storm is due to hit Earth on New Year's Eve ...

   www.aol.com/powerful-solar-storm-due-hit...

   A powerful solar storm due to hit the Earth on Tuesday could spark brilliant auroras. Auroras could be seen as far south as Wyoming, Wisconsin, and New York.. Expect to see more auroras in coming ...

7. Solar traffic light - Wikipedia

   en.wikipedia.org/wiki/Solar_traffic_light

   Solar-energy-powered school traffic light Solar Panel Battery Enclosure on Traffic Light. Most solar traffic lights use LED lamps as they are more reliable [1] and have more advantages over other lighting devices like CFL lamps as they are more energy efficient, have a longer life span and turn on and turn off quickly. [2] Solar traffic lights ...