on the laser pointer i have it sayes class 3, how are they rate, like how far they move about and all that stuff
Answers: Laser pointers are typically rate by wavelength (i.e., nanometers or nm), output power (i.e., milliwatts or mw) and divergence. The U.S. FDA categorizes lasers into classes base on health risks. Be sure you construe the health risks past using laser pointers.
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