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I'm trying to make a mini LED flashlight...?
The idea is to make it work on three or four watch batteries. It would have one white 3mm LED and the idea would be to make it as tiny as possible, no more than 1/2" in diameter if at all possible. The cap would screw on and off to replace the batteries, but I want it to be switch-activated if that can work.
Okay, the real problem is that I know what I want and I think what I need- led, casing, battery- but I'm not sure exactly how to make the thing. Does anyone know a place I can go for reference, or a how-to site or something? I'd even appreciate a safety warning.
http://scientificsonline.com/product.asp_Q_pn_E_3151753
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