5 lighting modesThe headlights and taillights support 5 lighting modes: strong light (80LM/2.5H) - medium light (40LM/6H) - slow flash (80LM/5, 5H) - rhythmic flash (80LM/5H30Min) - ECO flash (20LM/25H)). If you want to use it continuously for a long time, please adjust it to use in low speed mode. Press the button to switch mode and hold it for about 1 second to turn it off. Waterproof, lightweight and durableBike light it is made of IP66 waterproof material and the interface USB is covered with waterproof and dustproof silica gel, which can well protect the interior of the bulb and prolong the service life of the bulb. It adapts to various weather conditions and adopts PC plastic shell, so you don't have to worry about theft prevention, it can be easily disassembled after parking and carrying. Real-time USB/Battery Charging IndicatorBuilt-in 500MAH rechargeable battery, only takes 1 hour to fully charge. The USB charging port can be connected to computers, power banks and other devices with USB ports for fast charging. Real-time power indicator: green light (80%-100%); blue light (30%-80); red light (less than 30%). Brake sensor and double-click switch in smart manual modeWhen the taillight detects deceleration, it will automatically highlight for three seconds, reaching a maximum of 120LM, and the warning distance can reach 200 meters, with a wide range. This guarantees driving safety to a certain extent. Double-click the button in the power-on state to switch from manual mode to intelligent mode. (Taillight). Easy to install and remove Easy to lock and secure securely. The bicycle front light and rear light do not require any tools and can be easily installed and removed. Whether walking the dog, biking, skating, hiking or camping, these super bright safety lights can ensure your safety. Please note that due to manual measurement and display differences, there may be slight differences between individual products and photos.