rechargeable led flashlight: 1)With "CREE" Q5 led chip from USA. Low power consumptionm,high luminosity(approx. ten times brighter than standard LED) 2)LED lift time up 100,000hours 3)The lighting intensity is over 107-135 lumens. 4)Strong focusing collimator, visible for more than 500 meter. 5)Aircraft aluminum body ----strong,light,durable & rust free/water proof 6)anodized inside and out for improved corrosion resistance 7)with 1cell(ICR18650-3.7V-1800MAH) Li-ion rechargeable battery,rechargeable up to 500times; burning continuously,burning time up to 10hours 8)push button on/off switch 9)with 12 Volt DC cigarette lighter adaptor,110 Volt AC convertor and a strap 10)Length: 150mm Shaft diameter:28mm Head diameter:35mm