USB Rechargeable Bright LED Bicycle Bike Front Headlight and Rear Tail Light Set Feature Ultra-Bright Headlight & Taillights 4 lightning modes with front light & 3 lightning modes with taillight Effectively light up your road and give your better visibility iP65 waterproof design to escort your outdoor activities in any weather 360 degree rotation ability providing more flexibility and convenience Easy to install in seconds without any tools Comes with USB cable Fits all kinds of bicycles with handle bars 20 – 31mm in diameter Make your cycling much safer and more enjoyable   Specification Color: Black Material: ABS material Lightening Mode: Lightening Mode Lumen( lm ) Working Time( hour ) Power Mode 200lm 3 h Standard Mode 100lm 4 h Eco Mode 50lm 7 h Flashing Mode 200lm 6 h Battery: Headlight: Built-in 2000mAh rechargeable Lithium battery Taillight: Button battery Application: Fits all bicycle with handle bars 20 – 31mm in diameter Package includes 1 x USB Rechargeable Headlight 1 x Taillight 2 x Bike Light Bracket 1 x USB Charging Cable