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Most LED flashlights I've seen use a blue led inside them. If it produces a white light then it probably has a couple of different colored LED's inside it to produce the white light. Even this Christmas when I bought my LED Christmas lights I had to pay more for the white ones as opposed to the blue or multi colored strands. The guy told me the same thing...the white ones cost more because there's three different colors combined to produce the white light.
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