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How long do glow sticks last?
Question Date: 2012-09-10
Answer 1:

This time can vary widely between glow sticks, but most last between 6-12 hours. Since the amount of light you see is determined by the rate of reaction, you can increase the brightness by heating up the glow sticks (by placing them in hot water, e.g.). This, of course, has the side effect of lowering the total glow time since it accelerates the consumption of active ingredients.

Hope this helps!

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