1816 Light Bulb


If you're a classic car enthusiast, you may have come across the term "1816 light bulb" while looking for replacement bulbs for your vintage ride. 

The 1816 light bulb is a historic component that was once widely used in automotive lighting. While it may not be as common today, it remains an important part of automotive history and a reminder of how far lighting technology has come.


The 1816 light bulb family is interchangeable with the following bulbs

Number of filaments:

The 1816 light bulb has a single filament, unlike modern bulbs that often have multiple filaments for different functions.

Shape and dimensions:

The bulb has a cylindrical shape with a diameter of 1.125 inches and a length of 2.25 inches, making it larger than many modern bulbs.

Wattage and volts:

The 1816 bulb typically has a wattage of 32 watts and operates on 6 volts.


The 1816 bulb was commonly used in automotive headlights, tail lights, and other lighting applications in the early 20th century.

Cross reference:

While the 1816 bulb may not be as widely available today, there are other bulbs that can be used as replacements. For example, the 1157 bulb is interchangeable with the 1816 in some applications.


The 1816 bulb is an incandescent bulb, meaning that it produces light by heating a filament until it glows. This technology has been largely replaced by LED and HID bulbs in modern cars, which are more energy-efficient and longer-lasting.