1000-watt, 120-volt halogen twin head utility work light telescopes up to 42 inches tall and uses locking nuts for easy adjustment. Hinged face, tempered safety glass, and Shadow Fighter grill. (2) 500-watt halogen bulbs included. 16,000-lumen output. Safety yellow. UL (Underwriters' Laboratories) and CUL (Underwriters' Laboratories of Canada) listed.