USB charging 12-lamp bicycle taillight fun run safety warning light helmet lamp In 2021, the taillights exploded, and when they flashed, they had the effect of 12 lantern beads, which was very beautiful. USB can be charged quickly, which can be filled in more than one hour. It is fast and convenient, and a variety of charging methods can be selected. Long battery life, up to 16 hours battery life, very suitable for friends who often ride. Five flash modes can be selected freely. It is waterproof and is not afraid of heavy rain. 2021 new taillights, we have exclusive patents, please confirm the genuine purchase, quality assurance. Specifications: Specifications: Products: USB charging riding taillights Material: ABS Gear position: 5 modes Light color: white light/red light Dimensions: 40*40* 26mm Weight: 24g (taillight+strap) Endurance: always on for 16H/flashing for 32H Fully charged: about 2 hours Charging: USB charging Voltage: 3.7V Battery: li-polymer (350mAh) Uses: taillights, helmets, backpack warning lights Package Included: 1* taillight 1*USB charging cable 1* strap or 1*car light 2*battery Notes: Note: The taillight display in the video is daytime effect, and the warning distance at night is about 100 meters.