Flash Strobe Controller,EFORCAR Flasher Module for LED Brake Light Tail Stop Light Auto Car 12-24V LED Brake Flasher Stop Light Lamp Flash Strobe Flasher Our flash strobe controller can improve traffic safety warning to avoid rear-end accident. When driving clogged at night,continued brakes produce visual fatigue,EFORCAR flasher can solve this shortcoming very well. When braking:the high brake light will fast-blinking 4 times continuously,slow-blinking 4 times and then turn to long-lit. Good waterproof and dust proof performance to prevent short circuit on the durable module box. Black wire-negative pole and red wire-positive pole. Wide boltage 12V - 24V DC,suitable for all motor vehicles,cars motorcycle tank armored vehicles electric bicycle and other LED lights,the best installed in the third brake lights.