CF in enclosed fixture

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Old 01-18-14, 05:21 PM
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CF in enclosed fixture

I have a "jelly jar" fixture above my backdoor.

Can I use a CF in this type of enclosure?

I know CF's used to have issues with totally enclosed fixtures, is that still the case?

I know it probably is a proprietary issue but generally?
 
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Old 01-18-14, 07:34 PM
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I put 13W cfl`s in my front and back jam jar lights 3 years ago and they`re still rockin`.
 
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Old 01-18-14, 08:23 PM
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They are technically not supposed to be used in totally enclosed fixtures because the heat buildup affects the ballast. Same reason you're not supposed to burn them base-up in a recessed can light or ceiling fan unless it is specifically rated for it..

But that said, people do it all the time. While I doubt it is an actual fire hazard, I have noticed that it definitely adversely affects its useful life.
 
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Old 01-19-14, 08:25 PM
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I have a 23W (100W "equivalent") dimmable CF lamp installed base-up in the schoolhouse globe that's part of the fan over our dining table. The control is an SOP dimmer - not CFL rated. The lamps last 2 years or more.
 
 

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