Difference Between T5 & T8 Light Bulbs

If you are new to the world of lighting, you probably have some questions. When it comes to the difference between T5 light bulbs and T8 light bulbs, there are a few things to keep in mind when choosing between the two options.

The major difference between T5 light bulbs and T8 light bulbs is the size of the bulb. The T5 tends to be shorter both in length and in diameter as well. This factor is important to consider when looking at your fixture since a T8 bulb will not fit in a fixture designed for use strictly with T5 bulbs and vice versa. Another factor that separates these two bulbs would be the output capabilities. For example, a T5 will usually yield around 5000 lumens per lamp with a wattage consumption of around 54 watts per lamp whereas a T8 will offer 3000 lumens with an average wattage of 32 watts per bulb. When considering this difference between the two bulb options, it is also good to keep in mind the needs of your location. If you do not need as many lumens, a smaller T8 will be the better choice since it offers lower lumen and watt consumption. If you need higher levels of lighting, the T5 might be ideal for your situation.

When choosing bulbs of this sort, you have several other options you need to consider as well. For instance, both T5 and T8 lamps are available in various color rendering. This factor plays juts as big a role as the lumen output. For example, if you are considering a lamp type for an office setting, you will naturally want to select either a lower lumen output, a warmer color index, or perhaps both, depending on the area. Office settings tend to create complaints when a too powerful lighting solution in a too cool color is utilized. Once you have decided the color rendering and lumen needs, deciding between a T5 and a T8 fixture will be much easier to navigate since the main difference rests mainly in their size and output.

For a closer look at this matter, check out this video.

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Video Transcription

Hi, this is James Abraham with Warehouse Lighting. I’d like to explain the difference between T5 light bulbs and T8 light bulbs. There’s different options here you can get from us. You can get anywhere from 3000k which is on the redder spectrum to a 6500k which would be true to light outside type light. A couple things to notice here is the T5 is shorter, slightly shorter, than the T8 so it has to fit in the fixture. You can get different lengths of these, both of these, one for, you can use them for a two by two troffer, you could use them for a high bay fixture. The two main differences between these are well, one, the length and two, the wattage output and the lumen output. A T5 has approximately 5000 lumens per lamp and is also 54 watts per bulb, so, and a T8 gives you about 3000 lumens, depending on the ballast, low ballast factor being less probably around 2700, high ballast factor being about 3000. The T8 is a 32 watt and both of these, like I said, come in different colors of K values or Kelvin values. You know, you could actually get 3000, 3500, 4100, 5000, and also 6500. A good rule of thumb when thinking about what type of K value you need with these lamps is to, you know, in an industrial atmosphere, or, you know, right in our warehouse right here, you’re going to use a, you know, something like around a 5000 or a 6500. I have had complaints of people saying that they get headaches with the 6500 bulb, so I always kind of push them towards the 5000. In an office setting, you’re going to use anywhere from probably a 4100, you can use a 5000, but I suggest, you know, it seems like we get a lot more complaints in the offices that we have 5000’s, and not 4100, so that’s a good rule of thumb when thinking about buying which fixture or which lamp that would be suitable for your application. If you have questions, we’re here to answer. So, if you would call 414 525 9027 or you can go to our website at www.warehouse-lighting.com. Again, that’s www.warehouse-lighting.com. Feel free to ask us any questions you guys want. So, have a great day. Appreciate you stopping by.