Originally Posted by
jim10219
What's wrong with using LED lights? I could imagine LED's and flourescants plugged into the wall might have issues with them flickering on and off at 50-60Hz. But I would think a battery powered one would work just as well as a regular incandescent bulb, since it would be a constant on as well. Unless the photodiode only read IR, which would be a bit weird of a product design. I know most photodiodes read better in the IR region, but they should still read enough of the visible spectrum to do this job without any problems, I would think.