Quote Originally Posted by DarkroomExperimente View Post
I used a red LED from Radio Shack to make a darkroom flashlight
FWIW, SuperBrightLEDs sells LED flashlights of various descriptions, as well as LED flashlight bulbs for use in "generic" flashlights. I've got a little red LED keychain flashlight. It's handy for shining light on the enlarger lens's f-stop scale or finding bits of dropped paper. I also take it out with me when I take photos at night, since it's so small.