sotto
Flashlight Enthusiast
Well, recently I made an inquiry about the utility of blue LED's (besides providing light, of course), and last night made some discoveries with my Blue LED Stylus that to me were new and significant. Anything day-glo colored really pops out in a darkened room (a screw-driver handle, an art pencil eraser, and some price tag labels). Strangely, the clear plastic up-flow tube on my undergravel aquarium filter glows bright green, and a cheap red sweatshirt also fluoresces brightly. So, I guess my discovery is put some day-glo tape on anything you might lose or leave laying around at a campsite say and find it with a Blue LED Stylus.
Thanks.
Thanks.