Features ·Uses Cree XP-G2 R5 LED with a lifespan of 50,000 hours ·Uses one AA (Ni-MH, Alkaline) battery ·SIZE: 71mm×38.9mm×40mm(2.79" ×1.53"×1.57") ·WEIGHT: 52g (1.76 oz) excluding battery ·Digitally regulated output maintains constant brightness ·60 degree tilt mechanism ·Fast, convenient all-in-one button switch ·Reverse polarity protection guards against improper battery installation ·Made from