... li-ion rechargeable batterry POLICE FLASHLIGHT 523-C-15 zoom in & out CREE Q5 rechargeable focus adjustable revolve ... ,made by CNC ,Disposed by anodic oxidation .2.Led saved more power than normal filament lamp 3.Cree ... Q5 led ,Use DC/DC technology,more brightness ,4.Waterproof ... 500-600M This# 523-C-15 focal adjust by zoom in& out , if you prefer focal adjust by ...