Nite Ize Inova T5 Flashlight - Black Electronically Controlled for uniform light output High-powered energy efficient 33,700 hour LED Aggressive knurling for positive grip ANSI/NEMA FL1 Standards-Light Output Lumens: High 672/Low 27; Run Time: High 1H40M/Low 40H; Water Resistance: IPX7; Impact Resistant: 1m; Range: 234m Battery Type: 3-123A Lithium batteries, included Patented optical system-machined aluminum reflector for optimal thermal management & beam projection; electrically controlled for uniform light output Aerospace-Grade Aluminum Body from solid bar stock with military-spec, Type III hard coat anodized finish ; aggressive knurling for positive grip