The one in the video is a 915nm 60W high power semiconductor laser.
The bottom of the laser module is equipped with a heat sink. Aluminum heat sink and cooling fan can effectively prolong the continuous working time of high-power lasers. There are three working modes of CW/TTL/Analog on the power supply for selection.
The power of 60W is very high power, which can instantly ignite the cardboard. Be sure to pay attention to safety when operating, the operator must wear laser protective glasses, and the laser cannot point to other people or other flammable objects.
The rotary button on the power supply can adjust the working current, thereby adjusting the output power.
915nm infrared laser is invisible light, which is invisible to the human eye. Here the laser can easily ignite the cardboard.