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well, for an emergency light for situations where you may be without electricity for any extended period the new LED capacitor flashlights are really good. shake it for about 30 seconds and it gives 5 minutes of bright light. electricity is stored in a capacitor and shaking it pushes a magnet back and forth to charge the capacitor.---never wears out, and never needs battery. and the bigger one is approx as bright as a 3-D cell flashlight.
check ebay "emergency flashlight"---comes in 2 sizes. i have a bunch of them and they work really good.
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