Each 3156, 3057, 3157 LED bulb equips with 18 SMD 5050 (3-chip) LED light chip (5W each bulb)
Emit Amber (yellow-orange) color light, long lasting life
It is used for Turn Signal Parking light, Daytime Running Light, Tail Stop / Brake light, Reverse Backup light, Blinker / Corner / Indicator bulbs
Easy Plug & Play installation; Quick instant Start-Up time
Shock & vibration Resistant and instant on/off response time
It works at ~12V
Please try to reverse the polarity of the LED light if you found that the LED light is not working properly after installation
***NOTE***If you are using these LED light bulbs to replace the Turn Signal blinker light, Tail brake Stop light, Parking / Daytime Running Light DRL or Backup Reverse light; depending on your vehicle electric circuit, you may need to add a pair of load resistors to prevent hyper/error flashing or malfunction problem
Cross Reference for this 3156 or 3157 LED light bulb: