laser type: full solid semiconductor laser power: red 100mw, green 40mw wavelength: 650 nm green 532 nm red color: green red cooling: air-cooled motor: n1.8 high precision stepper motor power supply: 110v / 60hz, 220v / 50hz working modes: voice, self-propelled packing size: 260 * 180 * 120mm weight: 2.5kg