the flashlight with nice aluminum appearance,it's shock-proof,water-resistant,the most attractive point is the high quality. 1WLED with a lifespan of 50,000 hoursRuntime:5.0hoursBattery:RechargeableNI-MH batteryCircuiit:Dc-Dc Broad-range Constant current circuitMax output: 50LM Flashlight,LED flashlight,torch,power flashlight,LED torch