With Solid State Power Regulation this flashlight delivers maximum light output. C4® LED technology is impervious to shock and provides nearly 50,000 hours of life with 150 lumen intensity. Push-button tail cap for one-handed operation. Momentary or continuous modes. High-impact, ultratough nylon-polymer construction is extremely durable and waterproof. Polycarbonate lens is nearly unbreakable and casts an even beam of light. Two CR-123 lithium batteries (included) provide up to three hours of run time. Weight: 4.4 oz. Length: 5.6".