t8 bulbs in t12 fixture

Avid_aquarist · 03-14-2005, 10:11 PM

can you put t8 bulbs in a fixture made for t12s? the light fixture in the store is using t8 bulbs (which i like much better) but is made for t12's. will the fixture or bulbs be damaged?

**Ninong** · 03-14-2005, 10:14 PM

T8 tubes are 1" in diameter. T12 tubes are 1.5" in diameter. They require different size end caps. If you have the right size end caps and the correct ballast, the fixture itself doesn't matter.

**kevinpo** · 03-15-2005, 01:04 AM

Yes the T8's will fit in the T12 standard fixture. If you are using waterproof end caps it will not work. If you try to put T12's in a T8 fixture some times there isn't enough clearance around the bulb.

HTH,
Kevin

Avid_aquarist · 03-15-2005, 01:53 AM

alright, thanks

03-14-2005, 10:11 PM	#1
Avid_aquarist Just Moved In Join Date: Sep 2004 Location: Hilo, Hawaii Posts: 15	t8 bulbs in t12 fixture can you put t8 bulbs in a fixture made for t12s? the light fixture in the store is using t8 bulbs (which i like much better) but is made for t12's. will the fixture or bulbs be damaged?

03-14-2005, 10:14 PM	#2
Ninong Moderator Join Date: Jun 2000 Location: Louisiana Posts: 19,727	T8 tubes are 1" in diameter. T12 tubes are 1.5" in diameter. They require different size end caps. If you have the right size end caps and the correct ballast, the fixture itself doesn't matter. __________________ Ninong

03-15-2005, 01:04 AM	#3
kevinpo Moderator Join Date: Oct 2001 Location: Spokane Valley WA Posts: 2,425	Yes the T8's will fit in the T12 standard fixture. If you are using waterproof end caps it will not work. If you try to put T12's in a T8 fixture some times there isn't enough clearance around the bulb. HTH, Kevin __________________ SPSguy On - On

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03-15-2005, 01:53 AM	#4
Avid_aquarist Just Moved In Join Date: Sep 2004 Location: Hilo, Hawaii Posts: 15	alright, thanks

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