Energizer Hardcase Professional Work Light runs on 4AA batteries (MAX included). Two light modes: 550 Lumens HI; 150 Lumens LO. Water Resistant. Up to 40 hour runtime. Features. Impact-resistant hard-case flashlight can survive a 15-foot drop. Bright xenon bulb focuses light where you want it. Waterproof construction allows for indoor outdoor use. Six-hour run time. Rubber-cushioned grip base adds comfort.. Battery Type Alkaline. Flashlights Type Industrial. Power Source 4 AA Included. Voltage 1.5 V. Bulb Type Xenon. Color Black