The 9012 bulb is a high-performance automotive bulb that can be used as a replacement part for headlights. It utilizes HID Xenon technology and is a dual-beam lamp with two filaments. The bulb is typically used in projector headlights and has a nominal power of 12 volts and 55 watts. The usual lifespan of the 9012 bulb is around 2 years. Its name is deciphered as 90 for the base size and 12 for the wattage. The bulb uses a P22d base and produces 1700 lumens with a color temperature of 4300K.