What is the best solution for users to make highly clear and accurate dot alignment at longer distance than formal hand reaching, it is making more efficient job for users to make use of a 635nm red laser diode module. It keeps work with high purity and high brightness red laser light emission from a laser diode. After advanced use of a glass coated lens and metal heat sink cooling system inside 16mm diameter metal housing tube, this red dot laser just achieves high brightness red laser light emission, good thermal emitting and highly stable dot alignment in long lasting use. Within freely installed distance of 3 meters, no relying on any manual labor force input, this red laser makes sure of high brightness and high precision dot alignment for industrial precise device manufacturing works effectively.