Usb Bike Tail Light Lantern Smart Brake Sensor Warning Taillights

Taillights are very bright and used aluminum alloy material, strong and water resistant. Special algorithm adopted constant current drive circuit is able to acheive excellent balance between brightness and heat cooling. 5 light emitting modes, Double-click the switch to turn on/off the smart brake light mode, Long press the switch to close.Description Type Bicycle saddle Material polyurethane Applicable models mountain sports cars size one size Color 189 black red 189 black blue 188 black red 188 black blue Package List 1 seat Note The colors deviation might differ due to different monitor settings Manual measuring please allow 1 3mm errorthank you