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http://www.lasereshop.com/green-laserpointer/p-62.html
20mW Green laser Pointer Pen are the same power
30mW Green Laser pen easy to carry, and psychological within more than 50 meters of minors encountered some of LCV range, has been widely welcomed by the students fresh adventure. Laser Pointer normal use is generally divided into four, 2 or less (0.4-1 mW), as long as exposure time is not long, the eyes and the skin of the human body usually does not cause any damage, but then 3-5 mW laser pointer Power is large, it can cause injury. In the cause of this, because of the lack of regulation, sell 100MW laser pointer around the campus some strength 100-300 milliwatts, can instantly ignite matches, firecrackers and paper, or even fire. In combination with the students do not have the necessary self-protection awareness, during the game, the exposure time is longer, the retina of the eye,http://www.lasereshop.com/green-laserpointer/p-63.html the surface energy of the skin damage, causing
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