Are these bulbs appropriate for fully enclosed lighting fixtures?
1004529
I know from my own use that the "bulb" doesn't get too hot to touch, but the ceramic base of it does get hot. Personally, I wouldn't put one in a fully enclosed lighting fixture for that reason. It IS a great light bulb, however. Wonderful lighting in my desk lamp.
1004530
Yes. I have my Cree bulb in 2 outdoor fully enclosed lighting fixtures. These Cree bulbs are ideal for that application.
1004531
I'm an engineer who designs buildings. Our lighting designers say that LEDs should not be used in enclosed fixtures, but that does not match my experience. I have 5 Besa Bobbi ( Besa Lighting 911052C Bobbi Collection 2-Light Flush Mount, Marble Glass Shade ) ceiling fixtures (which I love) with two of these per fixture, and I have had no failures. I think it is a heat transfer issue. If the fixture were only rated for a 20 W incandescent there might be overheating, but I think that any fixture rated for 60 W lamps will not overheat with 9 W LEDs. I even have one marine light using these on a porch. I'm an engineer who designs buildings. Our lighting designers say that LEDs should not be used in enclosed fixtures, but that does not match my experience. I have 5 Besa Bobbi ( Besa Lighting 911052C Bobbi Collection 2-Light Flush Mount, Marble Glass Shade ) ceiling fixtures (which I love) with two of these per fixture, and I have had no failures. I think it is a heat transfer issue. If the fixture were only rated for a 20 W incandescent there might be overheating, but I think that any fixture rated for 60 W lamps will not overheat... » Read More I'm an engineer who designs buildings. Our lighting designers say that LEDs should not be used in enclosed fixtures, but that does not match my experience. I have 5 Besa Bobbi ( Besa Lighting 911052C Bobbi Collection 2-Light Flush Mount, Marble Glass Shade ) ceiling fixtures (which I love) with two of these per fixture, and I have had no failures. I think it is a heat transfer issue. If the fixture were only rated for a 20 W incandescent there might be overheating, but I think that any fixture rated for 60 W lamps will not overheat with 9 W LEDs. I even have one marine light using these on a porch. « Show Less
1004532
I'm an engineer who designs buildings. Our lighting designers say that LEDs should not be used in enclosed fixtures, but that does not match my experience. I have 5 Besa Bobbi ( http://www.amazon.com/Besa-Lighting-911052C-Collection-2-Light/dp/B000TF9OTE ) ceiling fixtures (which I love) with two of these per fixture, and I have had no failures. I think it is a heat transfer issue. If the fixture were only rated for a 20 W incandescent there might be overheating, but I think that any fixture rated for 60 W lamps will not overheat with 9 W LEDs. I even have one marine light using these on a porch.
1004533
The plastic neck on them generates heat; but as far as I could tell they have no restrictions. I installed one in the kitchen fixture which is enclosed. Sorry but I have to bring this up every time; I went from 210 watts in the kitchen to 28.5 watts; and my wife likes it much better.
1920123
1.) yes (and they seem to last forever) and 2.) it would depend upon the side of your enclosed fixture, of course. The bulb looks to be about 4 inches long.
2056628
The back of the box says it is not suitable for completely enclosed fixtures. Due to heat, most LED bulbs will have reduced lifetimes if they don't have some ventilation.
345106
specifically the base does get hot to the touch but it seems very little if any heat is given off. There's nearly no discernible heat from the bulb/light and almost no heat given off in general. Should be completely safe for fully enclosed fixture.
2061693
I have used indoor bulbs outdoors. these have a tendency to need to warm up. if you are in a colder climate you may have issues.If warmer and out of the weather I do not think you would have problems
1544139
I believe these bulbs need to be in an open fixture...They can be placed in a dome fixture if it's not full enclosed.
315354
I don't think these bulbs would work for that application. These are full-sized light bulbs for regular lamps. Someone might make LED bulbs for that purpose, but not these.
230696
yes.These bulbs are well protected when they arrive be careful when you open package they pop out easy.I been using my every night still working.
441906
They did not work for us in single bulb outdoor enclosed fixtures. The package states, "Do not use in multi-bulb enclosed fixtures together with other bulb technologies...". It does NOT say not to use them individually in outdoor enclosed fixtures. In fact, is also says "Suitable for damp locations but not for use where exposed directly to weather or water.", which seems to imply that enclosed fixtures are preferable. Unfortunately, two of the six bulbs we installed burned out in less than a week. I replaced the rest and will use them indoors. Hopefully, they will do better inside. They did not work for us in single bulb outdoor enclosed fixtures. The package states, "Do not use in multi-bulb enclosed fixtures together with other bulb technologies...". It does NOT say not to use them individually in outdoor enclosed fixtures. In fact, is also says "Suitable for damp locations but not for use where exposed directly to weather or water.", which seems to imply that enclosed fixtures are preferable. Unfortunately, two of the six bulbs we installed burned out in less than a week. I replaced the rest and will use them indoors. Hopefully, they will do... » Read More They did not work for us in single bulb outdoor enclosed fixtures. The package states, "Do not use in multi-bulb enclosed fixtures together with other bulb technologies...". It does NOT say not to use them individually in outdoor enclosed fixtures. In fact, is also says "Suitable for damp locations but not for use where exposed directly to weather or water.", which seems to imply that enclosed fixtures are preferable. Unfortunately, two of the six bulbs we installed burned out in less than a week. I replaced the rest and will use them indoors. Hopefully, they will do better inside. « Show Less
263466
Where did you see they were suitable for totally enclosed luminaries? I don't see that anywhere. The heatsinks on them get too hot to touch. These are my first LED bulbs, and from what I've read some get hot and some don't. So I don't know if that is going to affect them; being on all the time, or being totally enclosed. I don't see how the plastic globe part of them doesn't melt unless it's some kind of high-temp plastic.
538149
That question is a tricky one. It depends how the manufacturer and what the manufacturer uses to dissipate heat generated at the junction between the circuit board and the LED. In sealed industrial LED applications, the heat sinks are enormous and can tolerate the junction inefficiency. I seriously doubt that residential LED bulbs are designed for that purpose, so I would not recommend using these in a sealed fixture.
1615367
Yes. I have several cree bulbs in enclosed fixtures and have had no problems with them.
215059
I'm not sure but they don't get overly hot so it would be ok for those fixtures .
1624564
On the package it says: "Not suitable for totally enclosed fixtures". The keyword here is "totally". I won't get too worried about using it in my enclosed ceiling lights. As long as the fixture is not air-tight, it should be fine.
1980592
According to the Philips LED bulb data sheet, it should not be used in a totally enclosed fixture.
1600222
No, I don't think so... in fact, the lamp these fit for me had a completely enclosed bulb area... in other words, nothing was left open. Sorry.
51235
Not in my estimation. But that being said, there is no such thing as "too bright" in a garage like work place. I'm not 20 anymore. YMMV. I did have a 50% instantaneous failure rate (the fan quit working) on the two I ordered. In free standing, downward facing open fixtures I'd think that'd be the BEST application for these lamps. Anything enclosed, not so much. They appear to be a first attempt and as such, I think they'll get the kinks out.