The LED-V2-POWER1 is a key chain torch with the newest generation of power leds with an unbelieveable high brightness. The housing is made from blue coloured aluminium. LED-V2-POWER1 Power source:4x V13GA Length:71 mm Diameter:16.6 mm Weight:29 gram Battery life:aprox. 200 hours Burning duration LED:aprox. 100,000 hours Batteries included