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.
Fluorescent lamp sizes chart.
The diameter of the tube is described in eighths of an inch as it is for incandescent lamps so a fluorescent lamp 1 inch in diameter eight eighths is a t8.
Light bulb sizes and shapes chart including the different kind of light bulb bases.
Fluorescent tube lighting comes in a range of sizes.
Learn about all the different types of light bulbs including led halogen fluorescent and more.
Determining the tube size of the fluorescent light will help you decide which tube lighting is a suitable replacement.
A 5 watt 25 watt or 300 watt incandescent bulb can be screwed into an edison socket and they will all work as they are supposed to.
Find the lightbulbs shape you re looking for with this visual chart detailed illustrations of bulb shapes include a19 mr16 par and linear fluorescent tubes.