Prosvet 878 Tactical Flashlight Military Grade Led Flashlight - Water Resistant Tac Light - 5 Modes-Zommable Model of Led: Cree T6 Led Led,lifespan: 100,000 hours,Body Material: Alumiun alloy Switch:Deep Press Tail-cap ON/OFF,light touch on the button to select 5 Modes: high / middle / low / strobe / sos Adjustable focus range for different usage, stretching to adjust its focus A perfect item for outdoor sports,Skid-proof & water resistan design Power Source: 1 x 3.7V 18650 Battery or 3x AAA battery or 1x26650 battery(Not Included)