![]() ![]() When far from home, you can use LED lights to charge the solar lights. However, both the sun and LED light have a distinctive spectrum that is useful in charging. Just like the sun, an LED light is designed to produce a spread of light waves which consist of visible light, ultraviolet waves, and long infrared waves. For maximum results charge the solar panel for 12 consecutive hours. When using an incandescent bulb, place the solar lights as close as possible to the light bulb if it is further away it will take longer to charge. The lesser the light that falls on the cells the weaker the output, making it take longer to charge. The energy received by a cell from incandescent light tends to reduce rapidly because of the distance. This makes it as effective as the sun’s rays because although the sun produces a lot of light, only a small amount reaches the solar panel. ![]() The spectrum of the incandescent light tends to be similar to the sun rays making it easy for the cells to convert it.Ī typical incandescent light bulb tends to produce between 40 and 100 watts and has the longest infrared wavelength. This includes long infrared waves, visible light, ultraviolet waves waves, and x rays. However, the light needs to be bright enough for the charging to occur because the solar cell normally converts the wavelengths of the sun into electrical energy.īoth the incandescent bulb and the sun produce a spectrum which is a spread of light wavelengths. Most people believe that solar cells can only be charged using natural sunlight, but they can also be charged from an incandescent light bulb.
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