Flash Speeds: The brake light flash module can flash 4 times fast and then 4 times slow when braking, and finally stay in the original constant light state after flashing. Wide Application: Suitable for all motor vehicles, motorcycles, cars, trucks, electric or led bulb mounted brake lights. Reliable Material: Car flasher module is made of ABS material, sturdy and reliable, not easy to wear, which can be kept for a long time to use. Full sealing technology is adopted to protect the module from water and short circuit. Function: When driving at night, foggy or rainy days, the flasher will send a visual warning signal, which can improve traffic safety warning and avoid rear end accidents. Easy Install: Red wire connected to the positive pole, black wire connected to the negative pole, very simple and convenient, it is recommended to install in the third brake light.