Laser Pointer Videos Blue Laser Pointers

New wish brand 405nm blue laser pointer review — ture power test

by Laser Explorer Posted on 553 views 0 comments
We often see this kind of laser pen in the classroom, meeting room, exhibition room and so on.Pen shape, handy and portable to carry.And It is great for pointing objects from long distance.Do you know that it is safe for human eyes to look directly at its beam?What is the range of power of this ...
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