Fluorescent Light Bulb Sizes Length

There are three common sizes shown in the chart the below.

Fluorescent light bulb sizes length.

The most common form of fluorescent lamp is a straight tube. Sizes range from t2 to t17. Every light bulb has identifying characteristics that are represented by a letter or series of letters and a number. 1 888 455 2800 fax 1 508 363 2900.

Their size is what makes t4 lights popular for under cabinet lighting purposes and accent lighting for displays or a staircase. All fluorescent lamps use the same technology but there are several different variations and sizes. 1 888 455 2800 fax 1 508 363 2900. Pick from fluorescent bulbs and specialty light bulbs.

Ge 40 watt 48 in medium bi pin t12 3500 k bright white fluorescent light bulb 2 pack item 903831. There is no industry standard for the length or wattage of t4 tube lights. Numbers in a bulb code indicate size in millimeters or eighths of an inch. If you are using a 60 watt incandescent or a 13 watt compact fluorescent cfl you can switch to a 10 watt led bulb.

These are known as light bulb codes. The difference is in the diameter. 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. Here you have a simple light bulb replacement guide showing you how easy transitioning from your incandescent bulbs to leds can be.

The letter or letters in a bulb code indicate either shape or special features such as reflector type. All led can be screwed in like traditional bulbs. Shapes sizes and bases. Ge 8 watt 12 in miniature bi pin t5 4100 k cool white fluorescent light bulb.

For pricing and availability. Linear fluorescent tubes are the most common type of fluorescent lamps.