Archive for the ‘High Bay Lights’ Category

4 lamp T5 high bay lighting fixture, 120-277 volt ready to ship today

4 lamp T5 high bay lighting fixture, 120-277 volt ready to ship today.

Here is a great lighting for high bay problems

Let us know if you have any questions about your application!

James Abraham

High Bay VIdeo:

Categories: High Bay Lights

T5HO VS T8 Lighting Fixture?

T5HO VS T8 Lighting Fixture? Because this questions is asked so much I will try and explain it as best as I can. I will explain size of lamp (Bulb), wattage of each lamp, lumen output, energy savings and equivalent lighting fixture “i.e. how many lamps are equal to same output.

First, size of lamp T5’s range in size as well as do T8’s, but for this article I will be discussing T5HO’s and T8’s for 4 foot fluorescent  fixtures.  T5 or T5ho’s are measure in metrics and are slightly shorts then 4 feet or about 46 inches long. When buying a T5 fixture usually the fixture will measure 4 feet and the difference in size of the lamp will be made up by a extended sockets.  On T 8 lamps the lamp measures from end of the pins 48 inches altogether and will fit a 4 foot fixture perfectly.  The diameter of the lamps very  T5 are 5 tenths of any hence the 5 in t5 and t8s are 8t tenth of an inch.

Next  wattage, again several T5s out there  varying in sizes which also vary the wattages for the lamps.  T5 4 foot lamps vary from 28 watt non high output to 54 watt High output  and the new 49 watt t5  or T5HO lamp. T8 lamps also vary wattages from length.  Lamps for a 4 foot light fixture  range from 24, 26 watt reduced energy bulb to 32 watt standard output which lumen output is controlled by the ballast.

This brings us to lumen output

T5 28 watt lamp equals about 2800 Lumens per lamp position

T5ho  54 watt lamp equals about 5000 Lumens per lamp position

T8 32 watt with a low power factor ballast equals about 2100 to 2300 lumens per lamp position

T8 32 watt with a normal ballast factor ballast equals about 2500 to 2700 lumens per lamp position

T8 32 watt with a high ballast factor ballast equals about 2800 to 3000 lumens per lamp position

To answer the energy savings question from the research that I have see, head to head, lumen to lumen equality vs. watts output the t8 fixture for the same amount of lumen is more efficient by about 3 percent .

So with this all said here is your fixture break down:

4 lamp 54 watt T5HO fixture equals 20,000 lumen output one to one swap with a 6 Lamp high ballast factor  T8 32 which equals  18000 lumens watt fixture this is comparing a high bay fixture.  6 lamps T5ho fixture approximately equals the output of a 400 watt metal halidewhen new before the 3 year diminish.

Please Let me know if this help clarify this!

James Abraham


High Bay Lighting with HO T5 Lamps

High bay lighting is a lighting system that is used in high-ceiling areas to light surfaces that are more than 15 feet away. All lamps that are used in high bay lighting systems contain mercury. While you should be a little concerned because of the mercury chemical, choosing this type of lighting system is sometimes what has to be done. As long as you are careful, then you should have no problems. Read more…

Categories: High Bay Lights

What are High Hat Lights?

High hat lights are recessed downlights. That is, small direct lighting units positioned within a ceiling or cabinet so that their light shines vertically downward. High hat lights may also be called recessed can lights. They come in many sizes, 6” being the most popular. Read more…

Benefits Of Using LED High Bay Lighting

High bay lighting is the most common type of lighting used in areas that have high ceilings or need to be illuminated from a great distance of fifteen feet or more. You most commonly find bay lighting in such places as arenas, stadiums, gyms, factories, warehouses, loading docks and more. While high bay lights have traditionally used High Intensity Discharge lights or florescent lights, many places are changing over to LED lights. Here is why. Read more…

When to Use High Bay Lighting

High bay lighting (or high bay lights) are industrial light fixtures that are great for use in situations where a light fixture needs to be over 20 feet above a floor surface. For these situations, we use high bay lighting because it focuses light beams in a more concentrated area, allowing for greater brightness than more diffused lighting fixtures.

High bay lighting is good for industrial lighting situations such as the following: Read more…

High Bay Lighting Fixtures

For large areas, like gyms, warehouses, and factories, high bay lighting is ideal. These mounted industrial light fixtures typically rely on high intensity discharge (HID) bulbs, which offers lighting that is far more intense than most other options for lighting. Indoor usage of high bay lighting fixture generally uses Metal Halide because it projects a blue-ish white light that is easier for the eyes than HPS. Read more…

Lighting Kelvin Temp to Use For What

I find that bulb color to use in t8, T5HO’s and Fluorescent lighting in general rule of thumb would be

3500k Residential Lighting

Kitchens and Baths

4100k Commercial

Office Lighting Applications  

5000k Industrial

Warhouse, Manufacturing, Production Lines, Detail Work

6500k True Spectrum

Paint Booths

Defining High Bay Lights

(Hid) High Intensity Discharge High Bay Fixtures including the newest technology Pulse Start Metal Halide, and older Technology of High Pressure Sodium (HPS) and Metal Halide (MH) have been the lighting warehouses, manufacturing, garages, hangers, barns and other commercial, retail and industrial locations. Today with newer Pulse Start Metal Halide the lighting has become even more energy efficient and has greater lamp life (i.e. a 320 Pulse Start Metal Halide has the equivalent light output of a 400 watt Metal Halide but uses 80 less watts). In environments where dirt is substantial, or corrosive these High Intensity Discharge Fixtures are ideal. While Linear Fluorescent High Bays are gaining market share in areas, it is unlikely to replace MH in locations.

  • High Pressure Sodium or Pulse Start Metal Halide
  • Offered with an Aluminum or Acrylic reflector (15% Uplight)
  • 100-1000w HPS or PSMH
  • Most of our Fixtures us Major US Brand Ballasts and Lamps
  • Open Rated Bulb and Socket on all Metal Halide


Here is a great place to find these fixtures

Categories: High Bay Lights