'Ric

BB ParticipantLocation:Just up the hill from Pentagon City in Arlington.Interests:Travel, Geocaching, Wildlife, Fun in general.

You are watching: Will a t8 fit in a t12 fixture


I have a normal four tube 48" T12 Fl. fixture. Is there any problem replacing the bulbs with T8"s or even T5"s? Will all of the above fit in the same endcaps?

 

"Ric


*

t12 is either 1 inch or 1.25 inches around t6 is smaller size 2/4 inch i think. uses less wattage but has higher light output per watt due to its size

 

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 March 11, 2007 by Jager
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TROLL


March 12, 2007

TROLL

BB ParticipantLocation:Frederick, MD
March 12, 2007

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.


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quazi


March 12, 2007

quazi

BB ParticipantGender:MaleLocation:Sarasota, FLInterests:Reefs, silly!
March 12, 2007
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


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Do T8's fit in T12 Fixtures?
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