Underwater Kinetics 4AA eLED Zoom Light6 1 2" overall. 2 watt high intensity white LED produces 77 high 35 low lumens. Ultra high impact yellow ABS construction is non corrosive and passes UL 6 foot drop test. Push button on off momentary switch. Easy load battery system. Mounts to work helmets. Includes four AA alkaline batteries, but will accept AA lithium batteries also. Country of Origin : USA