## What is difference between T5 and T8 tube light?

The major physical difference between T5 and T8 light bulbs is the length and diameter of the tube itself. The T5 tends to be slightly shorter than the T8 tube, and is significantly smaller in diameter. This factor is important to consider when looking at your fixture, because the two tubes are not interchangeable.

Are T5 lights better than T8?

T5 lamps are 40% smaller than T8 fixtures, but are capable of containing just as much and sometimes more light in a smaller area. In other words, more T8 fixtures are needed to produced the same amount of light generated by significantly fewer high output T5 bulbs.

### Can I replace T8 with T5?

T5 lamps cannot replace T12 or T8 lamps because of differences in physical and electrical characteristics. T5 lamps come in different lengths than T8 and T12 lamps. A nominal 4-foot T5 lamp is actually shorter than an equivalent T8 lamp [1149 millimeters (45.23 inches) in total].

Can I use a T8 ballast for T5?

A T8 ballast is generally not compatible with a T5 linear fluorescent lamp. These are ratings used to describe the shape and size of fluorescent light bulbs. The pin sockets will only line up and complete a circuit in a correctly sized ballast. The exact design of each ballast differs across manufacturers.

## Do T5 bulbs use a lot of electricity?

Energy. A four-lamp bay using high output T5 lamps uses 220 watts of power including the power used for the ballast; a six-lamp T5 bay uses approximately 342 watts of electricity. Four-lamp T5 bays use about 6,840 kilowatts (kW) of electricity per hour, with six lamp bays consuming about 10,260 kW per hour.

Do T5 lights use a lot of electricity?

A four-lamp bay using high output T5 lamps uses 220 watts of power including the power used for the ballast; a six-lamp T5 bay uses approximately 342 watts of electricity. Four-lamp T5 bays use about 6,840 kilowatts (kW) of electricity per hour, with six lamp bays consuming about 10,260 kW per hour.

### Are T5 lights being phased out?

T5’s will be phased out when a newer technology makes them no longer saleable or profitable. There are no (US, at least) government regulations driving their demise.

How big is a T5 light bulb compared to a T8 bulb?

For example, a typical T5 bulb is 46 inches long rather than the 48 inches (4 foot) of T8 and T12 bulbs. Conversion kits are available, with a ballast, allowing T5 bulbs to fit T8 and T12 fixtures.

## What’s the life span of a T5 tube light?

T5 and T8 lighting last about 20,000 hours on average. In comparison to LED fixtures, youâ€™re looking at 35,000 to 50,000 hours (some even go to 200,000 hours). This means you could be getting double the life span of LED tube lighting vs fluorescent T5 and T8 tube lights.

How many Watts Does a T4 fluorescent light have?

They can range anywhere from 6 watts to 30 watts and in any length. If you are replacing a T4 fluorescent tube light, you may struggle with finding the same size. Be sure to measure the length of the tube light and check the wattage before heading for the shops or placing an online order.

### What’s the life of a T12 light bulb?

Since their conception in the 1930s, fluorescent T12 bulbs were the choice of building contractors. The low cost and life span of 20,000 hours far surpassed incandescent bulbs.