In various night version dot aligning work fields, in order to make precise and accurate dot alignment, it is operating easy and efficient with glass coated lens made high power 808nm infrared laser diode module. It emits high intensity infrared laser light source from high power infrared laser diode up to 150mW to 500mW. The special use of metal heat sink cooling system and external electric power source supply assure the best thermal emitting, and highly stable and reliable infrared reference dot projection in continuous use.