CREE XML L2 LED Bicycle Light Bike Lamp 450 Lumens 3 Mode Headlight Headlamp with 2600mAh 18650 Battery Pack TrustFire TR-D017 3 lighting effects to get different brightness: High, Low, and Strobe. The car clip ring is compatible with a variety of sizes of handlebar. The shell is made of aviation aluminum processed by CNC machine and the surface is with hard anodic oxidation treatment. Indicator of electric quantity: Green light, fully charged; Red light, half power; Slowly flashing red light, Low battery. Simple structure: easy installation for bicycle using. Professional glare lighting is good for cycling, climbing, fishing, camping, expedition, caving, digging, etc.