Fluorescent Light Bulb Base Types

T5 fluorescent bulb 13 watt from ge pin spacing 5 mm.

Fluorescent light bulb base types.

T8 fluorescent bulb 32 watt pin spacing 13mm sold in a wide range of color temperature and light output in lumens straight or u shaped. By eliminating bulbs that don t match your base type you are on the right track to finding the right type of fluorescent light bulb. Since their introduction as a commercial product in 1939 many different types of fluorescent lamp have been introduced. Medium standard base code.

Most common light bulb uses including lamps recessed flush mount flood lights are going to have one of the first three base types shown above. The difference is in the diameter. Certain longer fluorescent led tubes will be assessed a shipping surcharge. Intermediate base code.

Look at your fixture to determine its base type. Connects to miniature g5 base. This type of fluorescent tube lighting is the most popular because of its high cri and many color temperature options. Systematic nomenclature identifies mass market lamps as to overall shape power rating length color and other electrical and illuminating characteristics.

All fluorescent lamps use the same technology but there are several different variations and sizes. Pin type bases base codes gu5 3 gu10 and gu24. Pin type bases are normally used for track lighting landscape bulbs. Connects to a medium bi pin g13 base.

For shipments to canada you can add some items to your cart to determine the shipping rate. This is to cover all of the additional shipping materials that are needed to ensure a safe. For alaska hawaii the base rate is 27 59 and surcharges may apply for larger orders. Candelabra base code.

The common terms are medium intermediate candelabra and mogul. The most familiar is the edison screw base found on most incandescent bulbs and many halogen compact fluorescent hid and now ledbulbs. Some will have a recessed double contact. T8 lights are a good choice for an adjustable lighting system because of their color temperature range from a soft yellow white to bright daylight.

Frequently fluorescent bulbs will have either a single pin or bi pin two pin base type. Also what is the shape of your bulb. T12s are 1 5 inch diameter fluorescent tubes. The most commonly available is the t8 bulbs.

Look at your fixture to determine its base type. There are three common sizes shown in the chart the below.