Skilhunt E2A AA Compact Mini LED flashlight LED: Luminus SST20Max output: ANSI 600 LumensMax runtime: 48 hoursMax beam distance: 128 metersMax peak beam intensity: 4100cdWaterproof: IPX-8Impact-resistant: 1 MeterBattery: Uses 1xAA 1.5V Alkaline , 1xAA 1.2V Ni-MH or 3.7V 14500 Li-ion BatteryBattery Included: None unless you choose battery option.Rated Range: 1V ~ 4.2V Color:Gunmetal gray / Black Dimension:Length 85.0 mm / 3.35 inchHead diameter 19.0 mm / 0.75 inch Body diameter 19.5 mm / 0.77 inch Weight: 25 g / 0.88 oz (without battery)Included: 1x E2A, 1xAA Alkaline battery, Lanyard, Clip, Operator’s manual, Spare O-ring Operation **Battery installation: Insert the battery positive end toward the head of the light, otherwise it will not work. The battery should always be inserted from the head end of the light. If you open the tail cap there is a metal ring that can come out.**When the light turning on, the beam is directed away from the eyes.Take out the battery if you are storing the flashlight for a long period of time to prevent the battery from leaking. Flashlight turning on/off:Fully press the switch to turn on the light.Repeat half-press switch change levels.Fully press the switch again to turn it off. FeaturesPowered by a convenient and widely available single AA batteryMax output of 600 lumens, Powerful and High-Efficiency.Reliable mechanical switch without any standby current.Rugged indestructible aluminum body with anti-scratching type III hard anodization.Extremely easy carry: Barely know it is there with its lightweight and small size.Waterproof to IPX-8 StandardTIR optic lens producing a soft and balanced beam for comfortable use.Automatic memory function, remember last used setting and can be preset to specific output mode for instant access.Reverse polarity protection, to protect from improper battery installation.Tail stand as a candle-light.Wide input range provides more choices of batteries. High-efficiency driver circuit.Engineered anti-slip knurling for a tightly firm grip. Want to see a review of the Skilhunt E2A SST20 High-CRI flashlight? Head on over to TheFossilChannel on Youtube or click the video below.