Description: 1Watt LED aluminium alloy flashlight *Funtion: Tailcap Switch (momentary) *Feature: 1.Tailcap rubber switch;2.The flashlight Water-proof&shock-proof?3.ADD CMOS chip Regulated Circuit (constant electricity , isobarically , prevent excessive voltage) for protect LEDs well-balanced lighting;4.Type Ⅲ Hard Anodization for Extrenme Corrosion and Wear Resistance (option);5.Precision Machined Aircraft Grade Crush Resistant Aluminum;6.Low Heat-Energy Efficient Durable Diodes (LED only )*Runtime: 4 hrs ( good battery) * Battery type: 2pcs 1.5V AA alkaline battery * Bulb type:1Watt white light LED (imported) *Light output(Luminance): 25-30 lumens *Distance: over 60 m * Color: black,silver( can be produced according to customers) *Product size: 30.98mm(dia.) x 153mm(L) *Packing size: 230mm(L) x 97mm(W) x 38mm(H) * Net weight: 106g (not include battery) *LED life: over 50,000 hours