Fluorescent light comes in various different sizes. For example, some T8 tubes are available with a length up to 177cm. The mini fluorescent tubes on the other hand are, as you would expect, available in very small sizes. The mini fluorescent tube has a diameter of 16 mm and is available in several sizes, ranging from 14 cm to 56 cm. Because of their small size, they can be perfectly placed in compact fixtures. They can also illuminate the places where it is difficult to place larger fixtures, but where good colour rendering and light output is necessary.