The LED Lenser P5R, like the larger M7R, utilizes an optic that is a combination lens and reflector. This permits a smooth and fairly artifact-free beam that can be focused quickly in both spot and flood mode. The P5R features several operational modes and a maximum output of 2 lumens in high power. The rechargeable lithium-ion battery is charged internally by a contact charger that attaches magnetically to the tail cap.Key Specifications Output: 2 lumens full, 15 lumens low Runtime: 3h high, 7h low Battery: Li-Ion Rechargeable Battery Length: 4.63? Diameter: 1.? bezel, .7? body Weight with Batteries: 2.82 oz. Warranty: 5 years