Features: brand new and high quality Battery Life: our battery is a 2000 ma large capacity battery, which kills 99% of the taillights on the market, and its battery life can reach super long battery life of 20 hours of battery life and 45 hours of slowness. Remote Control: We are equipped with three remote controllers, the main remote controller and two sub remote controllers. The sub-remote controllers respectively control the blinking of the left and right turn signals, thus solving the risk of pressing the wrong button, and facilitating operation and giving instructions more quickly. Light Modes: We have eight light modes, which basically meet most people's flash requirements. Installation Mode: We have two sets of installation bases, one is cushion type and the other is seated bar type. You can choose freely. Waterproof Test: we also achieve IPX6 waterproof life, and there is no big problem in rainy days. Specifications: Material: ABS + Silicone Size: as Shown in the Picture Flash Mode: 8 Types Control Mode: Wireless Remote Control Battery Capacity: 2000 MA Endurance: Stay for 20h and Flash for 45h Waterproof: IPX6 Waterproof Installation Mode: Cushion Type and Seated Bar Type Package Includes: 1 x Back Light, 1 x Main Remote Control , 2 x Auxiliary Remote Control , 1 x Instruction Manual , 2 x Installation Base, 1x Installation Tool , 1 x Color Box. note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! It is recommended not to use it on rainy days as much as possible. Because there is a usb port and a light detection port at the bottom, there is a risk of long-term soaking and water leakage.