Product Description The Survivor by Streamlight is an intrinsically safe, lightweight, handheld flashlight with a right-angle head designed for use in hazardous locations. This light features a reduced bezel length to minimize snag hazards and a clip for attachment to turnout gear. Its large push-button provides gloved access to microprocessor-controlled high and low-intensity modes, emergency flash, and moonlight mode. Smoke Cutter optic technology offers insertable black or amber plugs for a user-customizable beam pattern. The Survivor can either use a rechargeable NiMH battery or 4 “AA” Alkaline batteries. The following model numbers come with 4 “AA” Alkaline batteries, 90540,90541, and 90545. The following model numbers come with a NiMH rechargeable battery either with AC/DC Charging or without charger. From the Manufacturer The Streamlight survivor LED is a lightweight, hand-held light with right angle head designed for use in hazardous locations. The light offers microprocessor controlled high and low lighting modes and emergency flash mode. It is the brightest, right-angle LED flashlight in the World. The C4 LED will never break or burn out, it'll never have to be replaced. This ultra-bright, C4 LED has a 50,000 hour life with 21,000 candela and 100-Lumen. There is no need for spare bulb. The deep-dish, parabolic beam generator creates a long-range (500 feet), focused beam and ample side lighting for multi-use applications. It's weatherproof, microprocessor controlled push button switch is raised to make it easy to use with gloves. The three position switch (high, low and locator strobe) is a raised push button switch recessed in a polymer housing for protection. The Streamlight survivor LED will run up to three hours on high beam and up to six hours on low beam. It is dual power sourced: rechargeable nickel cadmium battery pack or four AA Alkaline batteries. No tools are needed to change batteries. The survivor LED rechargeable model fits existing survivor charging units. It's rugged nylon polymer body is virtually indestructible and passes the 30-foot drop test. It's O-ring sealed for water resistance. The newly redesigned clip doesn't deform like metal clips! It grabs onto a belt or clips to turnout gear for easy hands-free use. limited lifetime warranty - the last right-angle light you'll ever buy.