Dilwe Bicycle Brake Light Portable Brake Bike Light Mount Tail Rear Cycling LED Lamp Automatic Safety Warning Light

The rear light will light up automatically to warn the car driver behind you automatically turn on when you brake,otherwise it will turn off,the rear light can be seen from a great distance at night and can even be seen clearly in daylight,highly visible at night.The brake lights without switch button, only when the brakes will shine,Great accessory for cycling enthusiasts. Features: 1.SENSITIVE DESIGN:When you brake,it will light up automatically to warn the car driver behind you,automatically turn on when you brake,otherwise it will turn off. 2.PROVIDE LONG SERVICE TIME:Built-in button cell,provides a long time endurance, no need to worry the battery's working time,LED brake light powered by replaceable AG10 battery for practical use. 3.CLEARLY VISIBLE:The rear light can be seen from a great distance at night and can even be seen clearly in daylight,highly visible at night. 4.EASY TO INSTALL:The warning brake light gives you a comfortable using  experience,which is perfect for C brake,and suitable for U/Canti/V brake. 5.BEST BIKE TOOL:The brake lights without switch button, only when the brakes will shine,Great accessory for cycling enthusiasts. Specifications: Condition: 100% Brand New and High Quality Material: Plastic + Metal Color: Black Body + Red Light Quantity: 3Pcs Weight: Approx. 37g Package Included: 3 x Brake Light