The 561 light bulb is an automotive bulb that is commonly used in various vehicles. It has a single filament and a T3.25 shape, which means that it is a miniature bulb that is 3.25 millimeters in diameter. The overall dimensions of the bulb are approximately 16mm x 7mm.
The 561 light bulb typically operates at 14 volts and has a wattage of 4 watts. It is commonly used in various positions such as tail lights, instrument panel lights, and parking lights. It is also used in some vehicles as a fog light bulb.
The 561 light bulb can be interchanged with other bulbs such as the 1815, 1816, 182, and 756. These bulbs have similar specifications and can be used in place of the 561 bulb if needed.
The 561 light bulb is a halogen bulb, which means that it uses a tungsten filament and a halogen gas to produce light. Halogen bulbs are known for their bright and long-lasting light, making them a popular choice for automotive lighting.