Radiantz Brake Light Module 6104-00 Designed for LED and incandescent brake lights When you apply your brakes, it causes your brake light to automatically emit a visual alerting signal 4 different modes of operation: 3 flashes - solid, 3 flashes - solid - repeat. 3 strobes - solid - repeat, 3 strobes - solid LEDs can turn-on and off faster than stock bulbs