- Dec 9, 2001
- 5,710
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I bought a bike light from REI which has 5 LEDs. It's brighter than the crappy Cateye 3 LED I had before. It would be nice if it were still brighter. I was thinking maybe putting the 1/2 size AA batteries in it to increase the voltage. Would that blow the LEDs? My other flash light takes 4 AAAs and only has 3 LEDs...