I have available (no cost!) a couple of outdoor halogen lights. Is there a good bulb for this for my scrubber?
Not sure, I don't know a whole lot about halogen lamps and what is available. But IIRC halogen is very similar to incandescent in nature, so you would want something with a low Kelvin, like 2700K or 3000K. I think you might run into issue with intensity at the center, but finding a distance from the screen should help that. Also you are going to have a ton of heat of halogen