Features 1、The Tail Light is built in 2 LED lights, provide bright light for your cycling and make sure you enough safety. 2、Adopted with premium plastic material, sturdy and durable for long time use. 3、It is easy to mount and without any tools, easy to install. 4、Fit around most size handlebars and seat posts. 5、This tail light is powered by 2 x AAA Batteries (not included). Provide you enough power when you cycling. Specification: This is a 2 leds bicycle tail light. Material: Plastic. Size: approx.7cmx3.5cm/2.8''x1.4''. Color: as picture shows 3 Modes: Flashing;0.5 Watt;1 Watt. Run Time: (depends on battery capacity). 1 Watt: up to 15 hours. 0.5 Watt: up to 30 hours. Flashing: up to 60 hours. Battery Configuration : 2 x AAA Batteries (not included). Package Included: 1 x Bicycle Tail Light. 1 x clip mount set. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please allow 1-2cm differences due to manual measurement. Package List