5 Light ModesThe front white and red backlight supports 5 light modes: constant high light, constant medium light, slow flash, rhythmic flash, energy-saving fast flash, one key switch . The maximum run time in low mode is 25 hours. Press the button to change the mode as you need and hold it for about 1 second to turn it off. The brightness can reach 20-120 LM.Waterproof, lightweight and durableBike light it is made of IP66 waterproof material, and the USB interface is covered with waterproof and dustproof silica gel, which can protect the interior of the bulb well 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%)Smart manual mode double-click brake sensor and switchWhen 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 beach. 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 removeEasy 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 it's walking the dog, biking, skating, hiking or camping, these super bright security lights can keep you safe.