White and yellow/amber 120 LED Switchback turn signal bulbs
Super Bright, Dual chip LED switchback bulbs. Sold in pairs.
120 LEDs per bulb. 60 Dual chip SMD LEDs. Both white and amber colors built into each chip. No blank spots or zebra stripe type lighting.
When parking lights or headlights are turned on they will shine white only. When the turn signal is applied, the white turns off completely and they will flash amber only. Once the turn signal is turned off, they will "switchback" to the white color automatically.
Available in 3 different plug bases. 3157 (T25), 1157 (BAY15D), and 7443 (T20). Your vehicle may use a different bulb part number but as long as they look the same, they will fit. Usually the difference in bulb part numbers is about the wattage. When converting to LEDs, this does not matter anymore. For example a vehicle that uses a 4057 type bulb can use our 3157 switchbacks. Or a 2357 can use our 1157 switchbacks. Cross reference table at the bottom of this page.
3157:
1157:
7443:
These are for dual stage front turn signal sockets only, e.g. a dual filament bulb with a 3 wire socket where the bulb gets separate +12v for the parking light and separate +12v for the turn signal (plus a ground). If you have any questions please contact us via the chat button or the contact us link.
To prevent hyper-flashing, be sure to add the load resistors to your order. They are sold in pairs and come with quick connectors to tap into the stock wiring. No need to cut and splice the factory wiring. Just place the connector over the wire and squeeze with pliers. A simple wiring diagram is included. These are not necessary if you don't mind hyper-flashing or if you already have a turn signal relay specifically designed for LED turn signals.
Customer photos:
Cross reference: (short-cut, press control+F . Type your bulb part number and it will be highlighted in the chart)
3157 (T25 base):
3155, 3457A, 3457NA, 4057,4157, 3157A, 3057A, 3157, 3157NA, 5702A, 4157NA, 3057, 3454NA, 4157, 3047, 3357A, 3757A, 3457, 4114, 3357, 4114LL, 3457K, 3157LL, 4157K, 3057LL, 4157NAK, 3357LL, 4057LL, 3157K, 3357K, 3057K, 3057ALL, 3457AK, 3357ALL, 4114K, 3157X, 3057KLCP, 3757AK, 3047LL, 3057KX, 3157ST, 3057X, 4057K, 3457NAK, 3155LL, 3457ALL, 4157LL, 3157NAK, 3157AK, 3157NALL, 3047K, 3757ALL, 3157KX, 3057ST, 5702AK
7443 (T20 base):
7444NA, 7443, 7443ST, 7443LL
1157 (BAY15D base):
1034, 1178A, 2057A, 2357NA, 2357A, 1157A, 7528, 2057, 1016, 2357, 1196, 1157, 1142, 94, 3496, 2397, 2357ALL, 2057ALL, 7528L, 1157ST, 3496LL, 1034LL, 2397LL, 1157LL, 2057ST, 2357LL, 1157ALL, 2057LL, 7528LL
If you have any questions please contact us via the chat button or the contact us link.
If you have a single stage front turn signal, and you're feeling adventurous, you can purchase a 3 wire socket and do a simple conversion. All you would need to do is tap into the headlights +12v wire and jump it to the parking light wire on your new socket. We have the sockets available here. Some trimming may be needed to get the new socket to fit the hole for the original socket. Sometimes the socket's alignment ears are a little different.