Surface-Mounted Fixtures Versus Recessed Cans
Glare is the biggest issue between these two options.
I am changing the old fluorescent tubes in my kitchen to new recessed LED lights. My original estimate included the installation of 6-inch cans, trim and lights, but now the electrician tells me that he no longer uses cans. He is now installing lights directly into junction boxes. I realize this reduces costs for him, but there isn't an "airtight" option with J-box installation like there is with cans. Is that an important consideration? Also, would the absence of a can affect my ability to change the fixtures in the future?

What your electrician is suggesting is a surface-mounted fixture that is about the size of a dessert plate. It uses an LED source, which is dimmable. My main concern about this type of fixture is that is does produce quite a bit of glare. A more traditional recessed fixture does a much better job of hiding the light source. Using an airtight recessed fixture does keep heating and air conditioning from being lost through the openings created by the installation of recessed fixtures. The shallow LED "dessert plates" are airtight since they do not pierce the ceiling. You could easily change out these fixtures to another surface-mounted fixture or a pendant-mounted fixture from the existing J-box.

My recommendation, though, is to go to a more traditional recessed airtight fixture that uses an LED source. You want to pick one where the lens that hides the LED diodes is regressed back into the fixture so that it is not flush with the ceiling plane. There are a lot of manufacturers out there. I would recommend that you find one that has a warm color temperature (2700K), has a good lumen output (the equivalent of a 75W reflector bulb or better) and is dimmable. Take a look at the Cree CR4 and CR6, which fit into most 4-inch and 6-inch housings. I also like the WarmDim by Juno, where the LED lighting appears to get warmer as it is dimmed.

Randall Whitehead lighting designer
Randall Whitehead, IALD

Randall Whitehead, IALD, is a professional lighting designer and author. His books include "Residential Lighting, A Practical Guide." Whitehead has worked on projects worldwide, appeared on the Discovery Channel, HGTV and CNN, and he is regular guest on Martha Stewart Living Radio. Visit his website for more information on books, upcoming seminars and the latest lighting trends.

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It's interesting to consider

It's interesting to consider these different aspects of recessed lighting. In the past, I never really considered surface-mounted versus a more traditional. You say that the traditional route reduces glare--are there are other benefits that you think one should consider? Thanks for the read. JF Electrical Contractors

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