The genuine dot alignment with high power 635nm 150mW red laser diode module is different from formal low power laser devices. Laser tech engineer has just considered well with its thermal emitting and long lasting ability. Being made with constant power source supply and qualified glass coated lens, it is able to work with the best quality and the purest red laser light emission from a 635nm red laser diode. It is also providing users the best quality and the clearest red dot alignment at great distance and high lighting occasions perfectly.