The default voltage of the light source is 24V, the built-in wire length is 0.5 meters, and the interface is 3 pins and 2 pins. It needs to be used in conjunction with a light source controller to adjust the brightness. The selectable colors of the light source include white, red, blue and green White color temperature: 7000-8000K Red wavelength: 620-630nm Green wavelength: 520-530nm Blue wavelength: 465-475nm