When using laser pens for astronomy there is always light in the sky. Using the wrong color laser pointer the dot will be difficult for people to see what you are pointing at. Laser pens for sale which use green laser light beams are the most visible and easiest to see when pointing at a lit screen, in a lit room or for astronomy.
• 100% brand new high quality and perfect design.
Green 500mw Laser Pointer Note:
★ absolutely not allow the use of a laser beam eyes of humans and animals against irradiation!
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