75 Watts, 12V tungsten halogen lamp. Accurately calibrated automatic timer allows preselection of cure time from 10 to 60 seconds. Specifications?115V 60Hz or 230V 50Hz AC. Dimensions? W160 x D125 x H80 mm. Accessories? Control Unit, Handpiece, Power Cable, 9 mm Fiber Optic Probe, Eye Protection Shield, Handpiece Holder (with 2 screws). Avaliable in 110V or 220V.