Bike Accessories Bicycle Taillight USB Rechargeable Waterproof LED Bike Rear Light Safety Warning Bike Tail Light Lamp Riding Equipment? Specifications: LED Quantity + lamp bead model: 16*LED Focus / fixed focus: fixed focus Lighting distance: >100m Is it waterproof: life waterproof Gear position: 5 Gear (Fast, meteor flash, chasing flash, slow flash, burst flash) Lighting duration: (flashing 8 hours - slow flashing 50 hours - meteor 30 hours - chasing flash 30 hours - breathing 8 hours) Switch position: middle of the lamp body Support battery type: built-in lithium battery Charging Method: USB Light Size: 40* 40 *20 MM Material: ABS Color: Red/Blue/Gold/Grey/Black Waterproof ?Level: IPx5 Suitable for: Night Safety Riding Warning, Cycling, Runningetc. This bicycle tail light can be mountable on a bicycle helmet. Suitable for 12-26mm pipe diameter. Package Included: 1 X Bike Tail Light 1 X USB Charging Cable 1 X Rubber Holder