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LED Book-Light Suggestions?

Dormous asks: "My wife and I are both night owls and avid readers, and usually one of us goes to bed before the other, hence the need for a small portable light source. We recently had a booklight, and somehow, my wife managed to shatter the light bulb all over the bed. Therefore, I want to find a booklight that uses an LED as the Light Source. Anybody got any ideas where I can find such a thing. I've already tried ThinkGeek."

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  1. Simple homebrew solution by Gordonjcp · · Score: 4, Interesting

    Most of these little clip-on booklights take two HP7 (AA) batteries, giving 3v. Remove the incandescent bulb (or bits of, in your case). Solder a high-brightness white LED in place of the incandescent bulb, and add a series resistor in there somewhere. You'll need to work out a suitable value - some LEDs may not need one at all.

    Another handy mod is to use a fairly bright red LED instead of white. This will make a light that's great for reading maps and star charts at night (for you navigators or astronomers) that won't mess with your dark adaption.