GENSSI 1157 2057 BAY15D Red LED Bulbs w/ Brake Light Flasher Flashing (Red 1157 Dual Mode) (Pack of 2) Red Output using 18x 2835 High Output LED Chips Replaces Stock Bulb: 1016, 1034, 1157, 1157A, 1178A, 1196, 2057, 2057A, 2357, 2357A, 2357NA, 2397, 3496, 7528, 94 Flashing when the second terminal (Brake light terminal) is activated; Flashes 3 times and then stays on for a second; then continues 1157 bulbs have two terminals (on, bright) The body is ground; When the bright model is activated, the flashing begins Pack of 2