Momentary/Constant 400 Lumen Main Power and Momentary Only Strobe with Fully Ambidextrous Controls Constant On Scalable from 400 to 20 Lumen via Front Facing Lumen Control Pad Impact Resistant Polymer Construction IPX7 Waterproof Rated. Capable of Withstanding Immersion in up to 1 Meter of Water for 30 Minutes 3 Hour Runtime Powered by two CR123A Batteries 400 Lumen Flashlight includes Low Profile Picatinny Base with Squared Recoil Stop for a Secure Installation Product Specifications: Material: Polymer Flashlight Bulb Type: 23mm LED IRB Flashlight Max. Lumen(Lumens): 400 Flashlight Battery Operating Time: High-3hrs Low-24hrs Flashlight Focus: Wide Angled Flood Battery Type: CR123A x 2 Pressure Switch Included: NO Weight with Battery: 6.6oz Length: 2.27" Height: 1.37" Color: Black