This 500mw laser pointer pen is extremely powerful, the beam is visible at day and night.It is fancy to use its starry parttern to amaze your friends.
This laser pen has a wavelength of 532 nm, which gives it a particularly intense green color . This wavelength is the most visible for the human eye.Besides, it requires 2x aaa batteries to supply its power.
500mw Green Laser Pen Features
Body Color: Black
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