ITEM NAME:2x White T20 7440 W21W WY21W Led Bulb Turn Signal Lights Canbus 3030 Brake Light.Replace: T20 w21w wy21w 7440. 2PCS w21w 7440 White LED Bulbs. Built-in Canbus load resistors to avoid OBC error code. If you are using these LED light bulbs to replace the Turn Signal light, Tail brake Stop light, Parking 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.
