When I try to use it to make beam projection in my room, this 5mW blue laser pointer is just very simple and convenient to use. I only need to put two pieces of AAA batteries into the tube of laser pointer. Outside the laser tube, it is clearly shown the correct positive and active part putting of batteries. As a result, I have no worrying of possible laser pointer burning out caused by wrong arrangement of battery.
This 5mW blue laser pointer is not as bright and visible as 532nm green laser, however, this special laser has just got the brightest blue laser beam generation among all visible lasers. According to special laser beam emitting directly from 460nm blue laser diode, this type of laser pointer pen is just able to project even stable and reliable blue laser light pointing in use. Besides simple use for presentation, this 5mW blue laser pointer is always workable for stage light design, laser show, laser player, inner room decoration etc.
After simple insert of 2 pieces of AAA batteries, 5mW blue laser pointer will begin to make highly bright blue laser light. The blue laser beam is very intense and pure, it can just bring users the best version enjoy and the best laser display result for all working fields efficiently.