Socket : 1156 P21W BA15S 1156 PY21W BAU15S 1157 P21/5W BAY15D T20 7440 W21W WY21W T20 7443 W21/5W T25 3156 P27W T25 3157 P27/7W ---Note--- Disclaimer about CANBUS: This LED bulb has high power, built-in Canbus load resistance, avoiding error codes or Hyper Flash and more, and is only suitable for 95% of car CANBUS. If the following conditions occur after installing the bulb, you need to purchase an additional decoder. this is not a quality problem with the bulb! If you mind, please place your order with caution. 1. The bulb does not light up or the bulb is on for a while, then it goes out or the bulb flashes. 2. The dashboard displays an error code or the radio is disturbed. 3.The bulb was still glowing slightly when the power was cut off. How can buyers verify that the bulb itself is working properly? The buyer uses the bulb to connect directly to the DC12V power supply and check the bulb without going through the car computer. Due to the super power of the bulb, it emits a lot of heat during operation, and can only be used for turn signals, reversing lights, and brake lights. It cannot be used for headlights, fog lights, daytime driving, etc. If you need to install 4 at the same time, very few cars will cause errors or super flash problems, please buy resistors together to solve the problem, 4 bulbs need 2 pair of 50W 6 ohm resistors. Voltage: DC12V Current: about 1.75/0.25/0.75A [Measurement errors are normal] Power: about 21w single