The H4666 automotive bulb is a popular replacement part for headlights and fog lights. It is a halogen bulb that utilizes a single beam with one filament. It is commonly used in reflector headlights. The bulb has a nominal power of 12 volts and 100 watts, producing 1650 lumens and a color temperature of 3200 kelvins. The H4666 bulb uses a P43t base and has a lifespan of around 2 years. Its name is deciphered as H for halogen, 46 for the bulb type, and 66 for the wattage. This bulb is interchangeable with other H4 bulbs such as the 9003, HB2, and H4.
H4666 Light Bulb
