ITEM NAME:USB Charge XM-L T6 LED Bicycle HeadLight Bike Head Light Lamp Torch Flashlig Ew Product Name: M3 bicycle lamp Light source: XM-L T6 lamp bead Luminous flux: 3000 lumens Lamp life: 100000 hours Material: high hardness aviation aluminum alloy Interface: USB interface Range: 200m Waterproof grade: IPX65 Voltage input: 8.4v Lamp cap size: 42mm x 60mm x 38mm Accessories included: XM-L T6 lamp + 1 pairs of aprons Details: 1. The lamp cap shell is made of high hardness aviation aluminum alloy, CNC processing, anodizing surface treatment, wear resistance and scratch resistance. Three bright T6 beads with a strong luminous flux of 3000 lumens 2. Empty electroplated smooth cup, high temperature resistance, anti falling off, complete concentrating effect. 3. Tail 4. Aluminum alloy lamp body fin design: enhance heat dissipation. 4. With 3 power indicator lights to control the use time of lamps at any time. 5. Waterproof design of connection port, no worry for riding in rainy days! USB interface: you can use the power bank Package included: 1 x LED Bicycle Light 2 x Spare O-ring Note: Please allow 1-3mm error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual colour of the item. Thank you!.Lamp life: 100000 hours. Light source: XM-L T6 lamp bead. Accessories included: XM-L T6 lamp + 1 pairs of aprons. 1 x LED Bicycle Light. Lamp cap size: 42mm x 60mm x 38mm. Aluminum alloy lamp body fin design: enhance heat dissipation.