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**Jackson** · 11-07-2010, 12:11 AM

Here, make your own!

http://hacknmod.com/hack/powerful-bl...on-a-keychain/

Blue is a bad color for these "toy" lazers. The light wavelength is too small and makes it harder to see. That's why most lasers are red or green, easier to see at lower power. That and red and green gives off more light output compared to the amount of electrical input.

11-07-2010, 12:11 AM	#16
Jackson Join Date Oct 2005 Posts 530 Senior Member	Here, make your own! http://hacknmod.com/hack/powerful-bl...on-a-keychain/ Blue is a bad color for these "toy" lazers. The light wavelength is too small and makes it harder to see. That's why most lasers are red or green, easier to see at lower power. That and red and green gives off more light output compared to the amount of electrical input.
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