The unique easy slide thumb switch on the Nemo 2410 Flashlight is easy to operate. The tough ABS resin body is corrosion proof and submersible to 330′ (100 meters). This flashlight comes with a Recoil LED module that produces a true, bright collimated LED beam. The Nemo 2410 Flashlight with its Recoil LED gives 126 Lumens of Brightness powered by 4 x AA Alkaline Batteries (included) with a Burn Time of 7 Hours and 30 Minutes. The Nemo Recoil Flashlight is a 6 Volt Light that measures 7″ (17.8 cm) in length, and weighs 7.3 oz (210 g) with batteries. Light comes equipped with an Adjustable Wrist Lanyard, and includes an Instruction Sheet.