Bullet Points: 1Mainstream Design: USB rechargeable bicycle lights, each light has built-in 650mAh rechargeable lithium battery. 24 Lighting Mode Options: According to your preferences, the headlights and taillights have one-button switch, with 4 different lighting modes, full brightness, half brightness, fast flash and slow flash. 3Easy Installation: The silicone mounting strap is designed with 2 openings, which can be tightly fixed on many sizes of seatposts, handlebars, seat risers, backpacks, helmets and extension straps to keep lights firm and firm. They can be easily loosened and fixed without any tools. 4Multiple Purpose: This bicycle light kit has enough versatility, can ride bicycle, , camp or do any outdoor activities, and can be used as an emergency flashlight. This is very suitable for cycling at night or where visibility and safety are required. So, start your next adventure with us. 5Best Service: We provide more cycling accessories, if you have other needs, please contact us. Description: USB bicycle riding light, 4-speed mode, aluminum alloy + engineering plastic material, battery life up to 4 hours, can be equipped with mobile power bank. Specification: Color: black and red Material: plastic Product weight: 0.3lb Installation type: handlebar, tailstock Lamp beads: 3 LED lights Packing box size: about 14.8*11*4.5cm/5.83*4.33*1.77inch Packing List: 1*Bike Front Rear Light Set