240lm high power LED Falshlight Lamp:Cree 7090 XR-E Q5LEDLamp Life:80,000 hoursOutputLevels:240Lumens(1hrs.) Power Source:One-18650 (lithium)BatteryInput Voltage:3.7V—4.2VAerospace-grade aluminum body with anti-scratching type IIIhard anodizationConstruction:Shockroof and water resistantSwitch:end-cap activates momentary on constant on/off modeDigitally Regulated for Constant BrightnessToughened Clear glass LensDimensions: 13cm(L)X3.2cm(D)Weight:109g(excluding battery)