This is a lensed troffer, which customarily uses T12 lamps. For T8 lamps, look for a parabolic louver troffer. It has several slanted openings that help shield the lamps from direct view, gather the light and redirect it out into the room. Remove the old T12 magnetic ballast and install a new, lighter-weight T12 electronic ballast to reduce light flicker and hum. Install the T12 tubes. Choose from warm white or cool white, depending on your lighting preference.
To improve efficiency, remove either type of T12 ballast and wire a T8 electronic ballast in the current troffer. Purchase and install T8 tubes. To reduce glare and distribute a more uniform light, remove the open troffer or lensed troffer and install in its place a parabolic louver troffer with T8 tubes.
Choose T8 fluorescent lamps with parabolic troffers and electronic ballasts for most applications, as they last longer than T12s and contain a triphosphor blend capable of producing a more natural light.
Choose T12 lamps with the older-style magnetic ballasts if you need to install lamps where there will be absolutely no interference to nearby electronic equipment. In the alternative, purchase fixtures with T8 electronic ballasts that have passive filtering.
A modern open troffer that is suspended from the ceiling and has rectangular ends often hold T8 lamps. Older open troffers might have the old-style T12 ballasts and lamps. T8s are the easy fix here. Newer, lower-wattage energy-saver T8 lamps have made their way to the market over the last several years in an effort for traditional manufacturers to compete with highly energy-efficient products. This is your bare-bones update requiring little effort and not a lot of money. If you want something more specialized and you are looking to get a better hit on energy savings, then you can go a step further and change to T5 lamps.
This will cost a bit more than replacing with T8s, as it often requires the use of a retrofit kit and sometimes requires a fixture change. But you can end up getting more brightness using less wattage and fewer lamps by going with the smaller-diameter lamps.
If energy savings is at the top of your list, and you are willing to make a larger investment on the front-end of your project, then you should consider a full LED retrofit. If your fixtures are still in good shape, the LED tubes are becoming increasingly competitive on pricing, so you may want to evaluate this option even if you think LEDs are out of your budget.
If your fixtures are in disrepair cracked lenses, bent reflectors, etc. Choosing between LED products? We have a few tools that you can use to help navigate the waters and cut through the calculations. Visit our lighting retrofit calculator if you need to get proposed savings and ROI for your project.
Check out our written guide to energy savings and payback calculations that can serve as a reference. Each step of the calculation is spelled out, and we also give our recommendations on when to include which variables. Once your budget and goals are clear, you want to be able to trust your lighting partner. This can range from the manufacturer you choose to the consultant who helps with the energy analysis to the installer who completes the job.
You can contact us here. Find the location nearest you. Start typing and press Enter to search. An electrical current passes through semiconductor material, which illuminates the tiny light sources we call LEDs.
LEDs do not contain mercury. The smaller the lamps the more energy efficient they are. The process, however, can be more complex than plugging in a new bulb. Older bulbs, like T12s, used magnetic ballasts while newer, more efficient T8s and T5s use electronic ballasts. T8s can be retrofitted into T12 fixtures.
In some cases, changing to T5s requires replacing or rewiring the whole light fixture, adding significant cost and complexity in the interest of improved efficiency. The typical T12 four-lamp fixture uses watts of power between the lamps and ballast. T8 and T5 bulbs can last up to 4 years maximum, which sounds good until you learn that LED bulbs can last up to 10 years in a new fixture.
With replacement lights, there is almost no price differential between LEDs and T5s. With the energy savings being so great the no-brainer is to go with LEDs. Here are some of their reasons:. So not only do you get more light from a LED replacement bulb, they use less wattage. A fluorescent bulb at the end of its life is very simple to spot, because it is DEAD, nothing left.
In the State of Washington alone, over 10 Million lamps are disposed of in landfills each year. Those 10 Million lamps hold roughly lbs of toxic Mercury waste that gets deposited each year. LED replacement bulbs do not emit any light in the non-visible light spectrum UV.
LED fixtures contribute little to none in regards to heat gain in a room or air conditioned space.
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