Lithonia Lighting 2GT8 432A121201/4GESB Troffer Light Review

Average Reviews:

(More customer reviews)I recently had all the old overhead flourescent lighting in my drop-ceiling basement replaced with Lithonia lay-in Troffer lights, which use the newer T8 bulbs.So far I'm very pleased with them.

The prior fixtures I had used the older 40w T12 bulbs developed back in early 1970's ... they were often slow to light, tended to flicker, and created a lower quality light (CRI) that often had a faint blueish, purplish, or yellowish cast (depending on the make/model of yhe bulb and the age/frequency drift of the ballast).Some of the older ballasts also had an annoying tendency to hum.

The Lithonias I just installed use the newer 32w T8 bulbs, which are a full generation more advanced.They're slimmer, and significantly more energy efficient - creating 40-43% more light per watt. As a result, each 32W T8 bulb uses 22% less power, and is 12% brighter, than a 40W T12 bulb.They also light up much faster (courtesy of higher-frequency ballasts), offer better quality light (less color shifting), and have fewer problems with operating in cool temperatures.The newer ballasts are also quiet - they don't hum like some of the older ones tended to.

Also, the T8's efficiency advantage is further enhanced by the fact that they hold onto more of their brightness with age than T12's.For example - I was able to replace an older 2'x4' Troffer (w/four T12 bulbs nearing the end of their lifespan) with a single new 1'x4' Troffer (w/two T8 bulbs).According to the bulb specifications, the room should have been 44% dimmer, but the room was actually brighter !Part of that was the fault of the very old ballasts, and part was due to the very old bulbs - but the difference was very noticeable.The bottom line is that the T12's (both the bulbs and their ballasts) lose more of their energy efficiency with age than T8's.

The other thing I like is that the Lithonia Troffers have a latch mechanism than the old troffers I replaced - they're easy to open and close.

My only nit:The higher frequency T8's seem to cause a little localized radio interference.However, the problem only seems to happen if a radio is closer than a few feet from the light.Moving the radio a little further away usually solves the problem.

Highly recommended.

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Product Description:
2' x 4' lay in troffer for recessed mounting in suspended ceilings. Acrylic prismatic lens provides bright light, steel door frame with precise mitered corners. Uses F32T8 bulbs. 23 3 4" x 48" x 3 3 4". White. UL and CSA listed. No. 2GT8332A121201 3GESB:

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