Excellent Lighting: High bright bike headlight with 700 lumens LED lamp beads has wide range of lighting. Anti-glare design makes riding saferMultiple Lighting Modes: Support 5 lighting modes, induction light, low light (one light or two lights), high light (one light or two lights), easy to operateLight Sensor: Built-in photosensitive chip, it can automatically adjust the light according to the ambient light, which is convenient and energy-savingUSB Charging: Built-in 4000mAh high capacity battery, which can guarantee the lighting for all night riding. After being fully charged, it will auto cut off power to protect the batteryDurable & Waterproof: Made of high quality aluminum alloy material, durable and drop resistant. IPX6 waterproof rating, no fear of rainy daysWide Applications: Small and portable, easy to use, can be quickly installed on a bicycle, and can also be used as outdoor lighting and emergency flashlights Specifications: Material: Aluminum AlloyBrightness: 700 LumensBattery: Built-in 4000mAh Lithium BatteryIP Level: IPX6Item Size: 106 * 42 * 31mm/ 4.2 * 1.7 * 1.2inItem Weight: 195g/ 6.9oz Package included: 1 x Bike Light 1 x Bracket 1 x USB Cable 1 x Chinese and English User Manual