The combination of small size and C4A(R) LED output results in one of the brightest tactical personal carry lights for its size. a High, low and strobe modes a C4 LED illumination output and run times: a HIGH - 120 lumens/1.75 Hour a LOW - 14 lumens/21 Hours a STROBE - 4 Hours a Includes 2 AA alkaline batteries a Solid State power regulation provides maximum light output throughout battery life a Rubber push button tail cap switch a IPX7 rated design; waterproof to 1 meter for 30 minute sa Impact-resistant tempered glass lens a Unbreakable pocket clip a Anti-roll head a Includes nylon holster