Photodiodes that are reversed biased, will pass a certain amount of current through them, based on the amount of light falling on them, even as the load changes (as long as there is enough voltage from the supply). Some photodiodes will also act like mini solar cells under bright light.
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- Information on this site is not guaranteed to be accurate. Always consult the manufacturer info/datasheet of parts you use. Research the proper safety precautions for everything you do.