This is an Insight HX200 Programmable LED Flashlight. HX Series flashlights are programmable with over 30 power settings and functions. The light can be set to start at any level from covert Dim to Extreme Power Beam to strobe. The flashlight contains digitally managed circuits to control output power. The HX200's light source is a Cree High intensity LED with an output of 200 Lumens. The runtime of the battery is 2 hours on high, and 300 hours on low. Battery Power: Three DL 123 lithium batteries (included). The HX200 comes with a limited lifetime warranty, is waterproof and can be submerged 5 minutes in up to 5 meters of water. It also features multiple modes: Constant On, Momentary On, Strobe, Dimming, S.O.S, and Auto Off. The rugged Aerospace Type III Hard-Coat Anodized Aluminum construction along with its aggressively knurled exterior which resists slipping under wet conditions make the HX200 fit right into the X-Treme series. Limited Lifetime Warranty from the manufacturer.