The 881 bulb is a single beam lamp with one filament that is commonly used as a replacement part for fog lights and auxiliary lights. It utilizes halogen technology and has a nominal power of 12 volts and 27 watts. The bulb is typically used in reflector headlights and has a usual lifespan of 1-2 years. The name 881 is deciphered as an 8-series bulb with an 8.8mm base diameter and a 1.5mm contact pin diameter. The bulb uses a P14.5s base and has a brightness of 400 lumens with a color temperature of 3200K. The 881 bulb is interchangeable with other bulb types such as the 886 and 889.