FEATURES:SAVE MONEY AND PROTECT THE ENVIRONMENT Never spend your money on batteries again! Take the stress of weekly battery changes out of your life. Going battery-free is an excellent way to preserve our planet. The LED bike headlight charges via USB. It simply plugs into your computer or any USB-compatible device. A full charge takes just 3 to 4 hours, and the headlight lasts for 3 to 7 hours at maximum brightness.KEEP EVERY MOMENT IN SIGHT With a bike headlight and a taillight that equip your bike with outstanding 360 visibility, you and your loved ones are safer in low-light conditions and even during the day.MORE THAN JUST A BIKE LIGHT Sturdy, lightweight, and waterproof. Surprised? The front bike light also serves as an emergency flashlight. Keep it in your car, basement, attic, and bicycle emergency kit. Use it while running, jogging, hiking, camping, walking your dog, cycling, changing tires, during night family activities, power outages, and much more! Enjoy increased visibility and comfort, knowing that you are safe at all times.EASY INSTALLATION WITHOUT TOOLS Keep your screwdriver in the toolbox because the bike light can be mounted or removed from the front and back in less than 2 seconds without any tools. Use it as a flashlight and keep it in your emergency kit. It can be attached almost anywhere; ideal for your stroller, lawn mower, snow blower, skateboard, wheelchair, motorcycle, tricycle, grill, scooter, e-bike, boat, kayak, and much more!Light mode (300lm) – Runtime (3 hours)Standard mode (100lm) – Runtime (4 hours)Eco mode (50lm) – Runtime (7 hours)Flash mode (200lm) – Runtime (6 hours)Battery status indicator:When the remaining battery drops below 25%, the indicator lights up red.If more than 25% battery remains, the indicator stays off.The indicator lights up blue when the battery is fully charged.TECHNICAL DETAILS:Material:ABS and electronic componentsWeight:91 gSize:10.5 * 3.3 * 9 cmColor:blackBattery:Lithium-polymer battery (3.7 V, 1200 mAh)Charging method:USBHandlebar diameter:20-31 mmPACKAGE INCLUDES:1 * Light frontor1 *Lightfront + 1 *Lightrear