4000mw 532nm High-power green Laser Pointer,

"The output of laser pointers is generally limited by ANSI to 1 mW or 5 mW in order to prevent accidental damage to the retina of human eyes. Usually, pen lasers are class 2 or class 3a lasers, which require extended viewing times to damage the retina severely. "The risk to the human eye from transient exposure to light from commercially available class 3A laser pointers having powers of 1, 2, and 5 mW seems negligible." The Food and Drug Administration (FDA) has determined that Class 3a lasers could cause injury to the eye if viewed directly for approximately 0.25 seconds, although it has cited evidence that exposure to visible lasers is "usually" limited by the blink reflex of the eye, which they have timed at just under 0.25 seconds.


PLEASE note this is not a toy! i may request for your id!