ROCKBROS Bike Tail Light USB Rechargeable Bicycle Taillight Auto On Off Sensor IPX6 Waterproof Bike Rear Lights for Night Riding and Bicycle Safety 4 Light Modes Cycling Safety Light

4 LIGHT MODES & SAFETY - ROCKBROS bike rear light has 4 different lights to switch: Flashing Mode, Breathing (Gradient Pulse) Mode, Strobe Mode, and Steady On Mode. When riding suddenly brakes or decelerates, the tail light will automatically switch to high-brightness mode to ensure safe riding and remind people behind, LONG BATTERY LIFE - Our cycling safety light built-in safe and durable 300mAh TYPE-C rechargeable battery that can run for up to 30 hours on a full charge. The blue indicator light flashes quickly to remind charging, the blue light is always on when charging, and turns off when fully charged, IPX6 WATERPROOF & ALUMINUM ALLOY SHELL - The bike tail lights made of CNC machined aluminum alloy shell is drop-proof and wear-resistant. IPX6 waterproof and dustproof makes bicycle taillights suitable for any harsh weather, EASY TO INSTALL & VERSATILE - Say goodbye to tools, just mount the red rear light to the bike's saddle bracket or seatpost and secure with the cable ties or rubber bands. Additionally, it can be attached to wheelchairs, infant strollers, pet harnesses, children's bikes, backpacks, and etc, [VERSATILE]: Additionally, it can be attached to wheelchairs, infant strollers, pet harnesses, children's bikes, backpacks, and etc