Each 3156, 3057, 3157 LED bulb equips with 18 SMD 5050 (3-chip) LED light chip (5W each bulb)
Emit 6000K xenon HID white color temp. light, long lasting life
It is used for Turn Signal Parking light, Daytime Running Light DRL, 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: