can u use a light bulb instead of the sun to power a solar panel
Yes light-bulbs work, sort of, but you have to illuminate every cell. The output is regulated by the cell with the weakest illumination. Additionally the sun is very strong, 000W of light or more per square meter. A light-bulb is weaker, so less output. A 00W bulb may have only 5W of light, and it doesn't cover the panel, so you can expect something like % of the sun's output. The spectrum of a light-bulb is actually more appropriate for a silicon solar panel, as the silicon panel responds best to red colours.
Yes, but why? If you've got the light-bulb, you've already got more electricity than you will get out of the solar panel.
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Solar Powered Light Bulbs
