500mw Laser Pointer For Machine
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The same as usually used laser pointer, 515nm green laser pointer is also designed with the same appearance of pen shape, which enables the most convenient and easiest operation all the time. Powered by alkaline batteries, this green laser pointer is able to be operable by two pieces AAA batteries. Usually two pieces AAA batteries can support this laser gadget as long as 180 minutes.
Make careful observation of green laser spot in dark place. If there is clear floodlight, the laser light lens failed. Check whether green laser dot is a totally round dot, usually within 2mm diameter. Check whether laser beam brightness of green laser pointer changes from bright to dark. If yes, laser pointer electric circuit board and laser diode might have problems.