Why laser pointer can emit cool light？

The cool Laser pointer power is usually used as the laser used on the stage. The stage high-power laser light bar generally chooses 6W-15W power laser light, and the stage performance generally chooses 10W-20W power laser light. When choosing, pay attention to whether the power is appropriate, whether the power is real, and whether the design of the chassis is reasonable. Whether the structure is easy to install and whether the heat dissipation is good. Whether the galvanometer speed meets the requirements, whether the manufacturer is mass production, only mass production can guarantee its stability and reliability. Cool laser pointers are divided into single-color laser lights, two-color laser lights, three-color laser lights, full-color laser lights, color laser lights, colorful laser lights, and animation laser lights. The laser light is also divided into power size, the greater the power, the laser effect can take care of a larger space, and the price is more expensive.