> I once built a nightlight prototype using 10 medium efficiency > 5mm green LEDs (I should have used red). It was way, way, > way too bright in a largish dark bedroom. > > Peter If the purpose of the light was illumination rather than a comforter then green would be a good choice, as that's the colour the eye has most sensitivity to -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.