Fluorescent Light Sizes Chart

Learn about all the different types of light bulbs including led halogen fluorescent and more.

Fluorescent light sizes chart. Fluorescent light sizes shapes and base types. Lamps are typically identified by a code such as fxxty where f is for fluorescent the first number xx indicates either the power in watts or length in inches the t indicates that the shape of the bulb is tubular and the last number y is the diameter in eighths of an inch sometimes in millimeters rounded up to the nearest millimeter. T4 t5 t8 and t12. In the 1990s manufacturers began to add a numeric code describing a lamp s color to the string of characters identifying the model replacing the cw wwx etc designations.

In this code 70 means a cri between 70 and 79. There are 4 different fluorescent light options. Sizes and types of fluorescent lights. The t stands for tubular and the numbers are an index for the diameter in inches of the tube.

Most tube lighting will have its size mentioned on an end of the tube. Light bulb sizes and shapes chart including the different kind of light bulb bases. Knowing how to find a fluorescent light bulb that fits all of your needs will save you time worry and ensure you get the right one every time. Fluorescent tube sizes guide.