The PTL Pegasus Therapy Laser is a Class IV, solid state laser. It emits laser wavelength of 980 nanometers, with 0.5W to 10W power. Other specifications include continuous wave (CW) and pulsed modes of operation, 650 nm, 4.5 mW aiming beam, and 100 to 240VAC/50-60Hz power requirement. The PTL Pegasus Therapy Laser measures 12.5" x 9.5" x 6.5" and weighs 12 lbs.