BRIVIGA LED Bike Tail Light USB Rechargeable, Super Bright Bike Helmet Light, Waterproof Bicycle Rear Tail Light, 6 Modes Bike Rear Light Rechargeable, 6 Hour Run Time, Easy to Install for Safety HIGH INTENSITY COB BIKE TAIL LIGHT HIGHER POWER, LOWER PRICE: So you want the best ultra-bright, USB rechargeable bike tail light thats compact, slim and weighs less than 1oz? With 6 lighting settings? A wide angle beam? 270 degree visibility? IPX5 waterproof level? At a price that actually makes sense? This is it. HELMET LIGHT + BIKE REAR LIGHT RACK MOUNT  CYCLISTS BEST CHOICE: Urban riding or Mountain MTB riding? Youll count on this bicycle rear light's SAFETY features  Powered by a RELIABLE, rechargeable lithium battery, and high power COB LEDs. Cyclists say its the all-around best choice for the night riders or daylight commuters. 1 HOURS CHARGE = 6 HOURS of RUN TIME ON BLINK MODE: Adventure waits for no one, so we engineered the most powerful, performance driven bike rear light rechargeable. It charges on any USB device in 1 hours or less, SAVES YOU $100s on batteries and STAYS LIT for 1.5  6 hours; So you can bike your heart out day or night with this bicycle light. ONLY A BREEZE TO MOUNT: Premium rear light for bike attaches to virtually any rack, bike frame, fork, seat post, handlebars or helmet. We made it EASY by including 1 rear bike light, 1 USB charging cable, 1 silicone rope for mounting, and a simple user manual. No tools required! DOUBLE GUARANTEED: Adults and kids parents SAY this must have addition to your front bike headlight is an AMAZING VALUE. Its SOLIDLY CONSTRUCTED, with a 30 day Love it or your money back guarantee and 1 year warranty  its the best safety light for bike you can buy in itsclass. It's one of the best bike lights you can count on for riding safety! COB LED (50 lm) Mounts securely to seatpost or seatstay with the rubber band (12-35mm) Lithium-ion polymer rechargeable battery USB rechargeable (Micro USB cable included) Low battery indicator 6 modes (1.5h-6h runtime) Charging time: 1h IPX5 waterproof - NO WORRY ABOUT BAD WEATHER any more Steady High (1.5h) Steady Low (3hrs) Flashing Slow (6 hrs) Flashing Fast (6 hrs) Gradual changing (4 hrs) Blinking (6 hrs) BRIVIGA bike rear tail light Silicone rope (for mounting) USB cable Instruction Manual