Reply by JayT

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Posted on Lighting: Help me understand the difference between T8 and T12

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6421 posts in 3271 days

#1 posted 01-12-2014 06:18 PM

Actually, that was tefinn that mentioned HD. The company I work for is a competitor to them, so I definitely wouldn’t be buying at big orange :-)

Regardless, there are several manufacturers and all the models will be different. Any good hardware store or home center will have ballasts. All you need to know is how many bulbs and what length/size, the ballasts will be labelled that way. For instance, in Joe’s case, he just needs to find a ballast that is for 2 F96 bulbs and he is good to go. The new electronic ballasts are all rated for T8 or T12, and as tefinn mentioned, the ends are identical.

Edit: If you take the bulb information in to a store and they don’t know what you are talking about or can’t immediately help you find the right ballast, RUN, don’t walk, away and go somewhere where the staff in the electrical department actually has some training.

The most common configurations for T8 are either two or four bulb F32 fixtures, which use 4’ long bulbs and two F96 bulbs, which are 8’ long.

-- - In theory, there is no difference between theory and practice. In practice, there is.

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