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T12s replacing T8? Not a very common practice.

T12s replacing T8? Not a very common practice.

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Was at my local Lowe’s yesterday and found that they had replaced some EOL’d T8 lamps with some T12 GEs. Whoever replaced those lights probably didn’t know or care that most of the other lights in the building are T8s, they seem to be running fine though so I guess it is a multi lamp ballast. As far as I can tell they are electronic instant start. But yeah something unusual I saw I thought I’d share.

B1340DAD-5D73-4282-8386-07237403501D.jpeg ProLume_F6T5.jpg T12_lamp_pile.jpg F25T12_Silvania_CW_Shoplight.jpg

Light Information

Light Information

Manufacturer:General Electric
Lamp
Lamp Type:F40T12, F32T8
Base:G13
Fixture
Fixture Type:1 light strip light
Ballast Type:Electronic instant start
Socket Type:G13
Electrical
Voltage:120

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Filename:B1340DAD-5D73-4282-8386-07237403501D.jpeg
Album name:mrboojay / Fluorescent Tubes
Keywords:Lamps
File Size:390 KB
Date added:Sep 27, 2019
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rjluna2
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Robert


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Sep 27, 2019 at 07:56 AM Author: rjluna2
If the F40T12 installed on the F32T8 ballast, probably it would underdrive the older model

Pretty, please no more Chinese failure.

mrboojay
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Sep 27, 2019 at 08:28 AM Author: mrboojay
Probably, but it seems tom be doing just fine so I am under the assumption this it can handle multiple lamps. But I've never seen the ballast so IDK.

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merc
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Adam


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Sep 27, 2019 at 12:33 PM Author: merc

If the F40T12 installed on the F32T8 ballast, probably it would underdrive the older model

Why F32T8? The length should be the same as F36T8 and the ballast "compatible".

Btw. it's wise to use the old stock (even not so efficient as the last technologies) and not just to dump it. I'd love to see it also here.

Not a misoLEDist...

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Sep 27, 2019 at 01:10 PM Author: monkeyface
Probably someone from the other side of the pond did the replacement. He might didn’t know that they are not interchangeable.
mrboojay
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Sep 27, 2019 at 03:06 PM Author: mrboojay
Isnt F32 the norm for 4ft T8s? Unless I’m mistaken. Also there are electronic ballasts that'll run F40 T12s all the way to 2ft T8s. Also they still keep T12s as normal stock, so it’s not like they are using up old tubes or anything.

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Sep 27, 2019 at 04:02 PM Author: joseph_125
Yeah the F32 are the normal wattage for 4' North American T8 lamps. F36 is preheat retrofit lamp more common in 240v countries and F25 are the energy saving 4' T8s.
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