... high temperature resistant, prevent fall off, the effect is perfect.5. Case used 6063#aluminum, CNC machining, anodic oxidation surface treatment ... .6. Used 4*18650 battery pack, capacity: 4400mAh, voltage:8.4V, work ... prodcuts performance and dangerous. Pictures: TrustFire TR-D003 Bicycle Light 1*T6 LED + 2*R2 LED 3 Mode Bike Lamp