If users are not able to make clear and bright enough dot alignment, either it is pointing at close or long distance, it is always making good job with a high brightness beam emitting tool, such as a 635nm. It project high purity red laser light and at least 3 times brighter red laser light than same output power made 650nm red laser. When it gets the lowest laser beam divergence of less than 1mrad and special TEM00 laser beam mode, it is keeping work with the most compact size and the brightest red dot alignment in constant use. When it makes correct use of output power and freely adjusted laser beam focus and red dot emitting direction within three dimensions, without the use of sunlight, this red dot laser always makes sure of high precision, high speed and good direction red dot alignment at various work distances.