Features Intelligent Sensor & AUTO ON/OFF The Headlight has an intelligent sensor which can adjust the brightness automatically according to the darkness of the environment. The Headlight also has a motion detector which can turn on the light once detect moving and turn off the light automatically in 3 minutes after the bike stops(AUTO mode only). These functions help to save battery and no need to worry about forgetting turn off the light anymore. Aluminum Shell & Ultra Birght LED XPG The cover of the headlight is made of aluminum shell which is lighter, stronger and beneficial to dissipate heat of light bead comparing to plastic model. This feature helps to extend the life of the bike light. The weight of the headlight is only 60g makes it very portable . The headlight use LED XPG which is ultra bright TO SEE. Due to the shape design of the side window makes the lighting range more widely for better sight. Upgraded USB Silicone Cover We changed the USB charge port cover to silicone cover from plastic. It won't fall off when riding and make sure the headlight is waterproof & dust resistant . Read more Anti-glare Optical Design The illumination of the bicycle light is below a certain height, and the light is illuminated widely and evenly . With a glare-free optical design, pedestrians and riders are not disturbed. Provide adequate security for you and pedestrians. Ultra Bright COB LED beads & 360° Rotatable The taillight use 15 COB LED beads which is ultra bright TO BE SEEN. It's very eye catching to make sure you can be seen during cycling to ensure your safety. 360° rotation and 180° visibility . Tailight is able to adjust to any angle you need to increase safety. Waterproof & Dust Resistant Both lights are IPX4 waterproof and dust resistant . Could widely used for different weather conditions. Read more SPECIFICATIONS HEADLIGHT Material: Aviation aluminum alloy and plastic. Lumen: 400 lumens super bright LED XPG. Battery: 3.7 mA 1200mAh lithium polymer battery. Runtime:2-4 hours. Charging time: 1-2 hours Charge indicator: Charging-Red, Charge completed-Green. Light Modes: Auto sensor mode/Low/Medium/High/Flashing TAILLIGHT Material: Plastic. Lumen: 100 lumens 15 COB LED beads. Battery: 3.7 mA 500mAh lithium polymer battery. Runtime: 3-12 hours. Charging time: About 1 hour Charge indicator: Charging-Red, Charge completed-Green. Change Steady light to Flashing: Double-click the On-Off button. Light Modes: Low/Medium/High/Slow strobe/Fast strobe/Flashing The Headlight and Taillight Set Package Includes: Headlight Headlight Bracket Taillight Taillight Rubber Band USB Charging Cable*2 Manual NOTICE: Headlight and Taillight Set includes as above. Read more