Coast LED Lenser HP8313 Focusing LED Flashlight K3 Up to 15 lumens of light output and 2 hours of battery life Beam distance of up to 108 feet The Advanced Focus System with One-Handed Speed-Focus allows user to adjust from a broad flood beam to a focused spot beam by sliding the head of the light forward and back. Lightweight and durable aluminum body 4 AG13 batteries (included)