Streamlight Protac 1L LED Flashlight An ultra-compact tactical light, the ProTac® 1L is easy to carry, and uses a single lithium battery. The light is one of the most versatile personal carry lights available for users, from law enforcement personnel to industrial technicians. TEN-TAP® Programming Choice of three user selectable programs: High/Strobe/Low High Only Low/High LED output and run times: High for bright light: 275 lumens; 143m beam; runs 2 hour; 5,100 candela Low for longer run time: 22 lumens; 41m beam; runs 24 hours; 420 candela Strobe for signaling or disorienting: runs 3.5 hours Features: Includes one 3V CR123A lithium battery and nylon holster IPX7 waterproof to 1 meter for 30 minutes; 2 meter impact resistance tested Solid State power regulation provides maximum light output throughout battery life Rubber push-button tail switch Durable, anodized aluminum construction with impact-resistant tempered glass lens Unbreakable pocket clip Anti-roll head 3.43 (8.71 cm); 2 oz (57 grams) RoHS compliant