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Discussion Boards > Active Subjects > Messages as Posted > Electric Forum

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 10-13-2008, 15:06 Post: 157227
Justus



Join Date: Jun 2002
Location: Justus, Pa.
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  T-8 s or T-12 s

I have several shop lights that I've purchased over the last few years from Home Depot. They say "Shop Light" on the carton but I believe the manufacturer is Commercial Electric. When I first started buying them about five years ago they used either T-8 or T-12 bulbs. It said so right on the fixture. Now I noticed (Just by chance) in lights I recently purchased that they say to use T-12 bulbs in them; they don't mention the T-8's at all. Now I understand that the T-8 is one inch in diameter and the T-12 an inch and a half. The pins are in the same spot so is there a particular reason not to use the T-8's in a fixture that calls for T-12's? I know I've run T-8's in the T-12 fixtures before I realized they switched them to T-12's.
They are all "Instant on." I do like the T-8's better and it seems T-8's are taking over T-12's so why do they say use T-12's? Thanks for any insight, Steve






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 11-06-2008, 16:12 Post: 157720
Justus



Join Date: Jun 2002
Location: Justus, Pa.
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  T-8 s or T-12 s

Ken and Murph, thanks for the reply. I was searching the internet after posting this and that was all I could come up with too, that using the wrong bulbs could shorten the life of the ballast or bulb. It just seemed puzzling to me that the same manufacturer would go from either/or to just plain T-12's. As I said, it was just by chance I noticed they now called for only T-12's. The design of the fixture has changed somewhat so, as you said Ken, someone else may be making the fixtures for them. From what I've read though, T-8's are replacing the T-12's. Also, like you said Murph, the fixtures (In this case) only cost $8+ dollars so they are throw aways. Thanks again for the input, Steve.






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Discussion Boards > Active Subjects > Messages as Posted > Electric Forum

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