Fluorescent Light Bulb Base Types

Systematic nomenclature identifies mass market lamps as to overall shape power rating length color and other electrical and illuminating characteristics.

Fluorescent light bulb base types.

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. This is to cover all of the additional shipping materials that are needed to ensure a safe. Pin type bases are normally used for track lighting landscape bulbs. Pin type bases base codes gu5 3 gu10 and gu24.

The common terms are medium intermediate candelabra and mogul. Find the light bulb base type you re looking for with this visual chart detailed illustrations of general bases fluorescent bases and specialty halogen base types. 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. The most commonly available is the t8 bulbs.

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. All fluorescent lamps use the same technology but there are several different variations and sizes. T5 fluorescent bulb 13 watt from ge pin spacing 5 mm. There are tens of unique bases for light bulbs.

Medium standard base code. Since their introduction as a commercial product in 1939 many different types of fluorescent lamp have been introduced. Look at your fixture to determine its base type. This type of fluorescent tube lighting is the most popular because of its high cri and many color temperature options.

There are three common sizes shown in the chart the below. Intermediate base code. In 1980 philips became the first manufacturer to mass produce a compact fluorescent bulb with a screw in base. Connects to miniature g5 base.

There are two major types of compact fluorescent lamp screw in and plug in. Certain longer fluorescent led tubes will be assessed a shipping surcharge. T12s are 1 5 inch diameter fluorescent tubes. The difference is in the diameter.

For shipments to canada you can add some items to your cart to determine the shipping rate. You can find this base on bulbs such as the t6 s11 and r12 but you will have to do a lot of searching to find these bulbs. For alaska hawaii the base rate is 27 59 and surcharges may apply for larger orders. Look at your fixture to determine its base type.

Connects to a medium bi pin g13 base. This light bulb base is not very common and most often found on much smaller bulbs. Linear fluorescent tubes are the most common type of fluorescent lamps.