It is a 520nm 10W fiber coupled laser system. There is a radiator at the bottom of the laser head. The radiator is composed of an aluminum sheet and a cooling fan. The ‘CW|TTL|Analog’ on the back of the laser power supply is the selection button for 3 working modes. The ‘Adjustor’ knob is used to adjust the size of the current to control the laser output power. Let’s check it now.