Item No.SE20-1*AA1.FeaturesMaterial:T6061 aircraft aluminium alloyLamp cap:plastic reflectorMarking:laser LOGOColor:matted black2.Details&Functions Size:head 26mm,tail 20mm,length 108mmN/W:49gBattery:1*AA(not included)Voltage:1.5VBulb type:5*LED+1*infrared bulb Burn time:around 5hBrightness:around 50LMWorking distance:around 50mLamp life:100,000hSwitch:the newest button design,easy function transformationFunctions(three gears cycles: 100%>Strobe>Infrared Light>OffFeatures: High power super bright LED Low operating voltage Low power dissipation Waterproof and Shockproof