laser pointers
A blue laser pointer–you buy one,there will be three
The laser flashlight can be used two types of battery driven(2 x 16340 batteries or 2 x 18650 batteries). Blue laser beam power consumption is very large,Those using a single 16340 battery powered blue laser pointer,Life time is less than 10 minutes, the use is not suitable for long time. Laser flashlight as a special ...