*Used 4*18650 battery pack *Using a CREE XM-L T6 ... and two XP-E R2 LED, highest the brightness of 1800lm.2. Intellient control circuits, three gears light circuit ... B: Middle XM-L T6 lights, current output 3.0A, the brightness of 1000lm.C: Three led all lights, with light ... CNC machining, anodic oxidation surface treatment.6. Used 4*18650 battery pack, capacity: 4400mAh, voltage:8.4V, work continuously ...