This electronic Brake Light Flasher will make your car more noticeable in traffic. This is how it operates; apply your brake and your center brake light will immediately turn ON and then flash 7 -9 times for about 3-4 seconds then stay ON continuously. Release your brake and apply again will cause the cycle to repeat but the flash period will be shorter depending on how long the brakes were off. A complete reset takes about 20-30 seconds. The installation is easy with only a 3 wire connection within the center brake light unit.