Product specifications: Laser types: diode laser Wavelength: 810nm Fluence: 1-120j/cm2 (adjustable) Pulse width: 40ms-400ms(adjustable) Pulse frequency: 1-10hz Spot size: 12mm12mm Cooling: within the closed circulating water cooling Cooling temperature: 5 Electrical: -220v22v, 50hz, 10a Dimensions: 640mm(l)400mm(w)1120mm(h) Color options: white, black, yellow Weight: 33kg Plywood