High quality light This bicycle light has 2 ultra-bright lamp beads with 1200 lumens. Large area of illumination and visible distance up to 600 feet. The improved frame supports a horizontal rotation of 360 and more visible space than other led bicycle lights. Intelligent LED display LED display shows lighting modes and corresponding battery level. The LED display shows 99 instead of 100 when fully charged and is reduced by 10 each time it is used, for example 99-90-80-70. The rider will be constantly informed about the condition of the bike light, which will prepare you well for a continuous journey. Rechargeable USB and Power Bank This bicycle light usb can be used as a power bank, so you can charge your phone anytime anywhere. The built-in 5200mAh battery provides long-lasting power and can be charged via USB. Easier to Install No Tools Required - Simply install and remove within 30 seconds. Suitable for handlebars with a diameter of 20-32 mm (0.79 in-1.26 in). Our characteristics: 360 visible Neutral white light with 1200 lumens to make every corner clearer and ensure safe travel with better visibility.360 rotatable bike ring: it is more convenient to choose any angle to keep your safety during the night. As a power bank function: you can charge your phone anytime, anywhere. LED display: The display shows the status of the bike light, which means that the rider is well prepared for the ride. Waterproof IP65: protected against splash water from every angle. It doesn't matter in heavy rain or thick fog.Equipped with 5 brightness modes (low-medium-high-strobe-SOS). Just change the different modes according to your needs for the best lighting experience.