Do T8's fit in T12 Fixtures?
Posted 10 March 2007 - 06:15 PM
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Posted 10 March 2007 - 09:38 PM
Posted 10 March 2007 - 11:13 PM
t5 smaller still 1/2 inch and puts out even more light per watt then either of the above
if the t12 fixture says t8 then its ok. otherwise BAD IDEA. bulbs either dont last long, dont light right or blow the ballast.
the opposite though is usually true. if you have a t8 ballast it usually can run t12. they both use the same endcaps. but different wattage.
Edited by Jager, 10 March 2007 - 11:15 PM.
Posted 10 March 2007 - 11:41 PM
T12 = 1.5"
T8 = 1"
T5 = 5/8"
Edited by YBeNormal, 10 March 2007 - 11:41 PM.
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Posted 12 March 2007 - 04:17 AM
Posted 12 March 2007 - 11:52 AM
T-8 and T-12 has the same pin arrangement and can be interchangable on same sockets depends on ballasts. T-5 has smaller pin arrangment and would require different sockets.
TROLL is right:
T8 lamps require an electronic ballast specifically designed to operate lamps at a lower current than T12 lamps. Whenever T12 lamps are replaced with T8 lamps, the ballast must also be replaced. Install an electronic ballast for optimum light quality and efficiency; electronic ballasts don’t flicker or hum, and they use less power! T12, T10, and T8 lamps can all use the medium bi-pin base, which allows T8, and T10 lamps to fit into the same luminaires as T12 lamps of the same length. T5 lamps have a different base, and are shorter than T8s, so new lumenaires are needed.
Icecap ballasts can drive all these bulbs no matter the rated bulb wattage.
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