Green Light Flashlight , TFSeven TF-A100 Zoomable Scalable LED Flashlight 3W Cree-xml T6 Waterproof Flashlight 700 Lumen Cree XML T6 Tactical Lampe Torch Glim Lantern (Green Light) Reverse polarity protection:protect the LED light do not burn out if the battery installed backwards Support zoom in, zoom out function with adjustable focus. Super mini size, Anti-abrasive. Power Source: 1 x 3.7V 18650 2800mAh Battery(NOT Included)or 3x AAA battery(Not Included). Great choice for stargazing, hunting with a night vision scope, signaling, reading maps or others Flashlight Type: Camping, Hiking, Backpacking, Hunting, Fishing, Auto Emergencies, House Repair,etc.