the 5.11 Light For Life Tactical Series UC3.400 flashlight, which has an ultracapacitor built right in. A 90 second charge will power this flashlight at 90 lumens for a 90 minutes, which equals a wicked impressive 23.5 hours out of 24 of on-time. You can recharge it 50,000 times (that’s a charge a day until the year 2143) with virtually no battery degradation or memory effects, but the LEDs themselves are only good for about 5 years, or until 2014.
via [ohgizmo.com]
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