I have some light fixtures that are currently used and covered with blind plates in the corners of a concrete ceiling room. I was wonder if there was anyway to convert those existing light boxes to recessed lighting. The wiring is already done but i imagine id need to get a deep hole.
Lighting – Recessed lighting in existing concrete light fixture
ceilingconcretelight-fixturelightingrecessed-lighting
Related Solutions
You can install a shallow 6" can made for 2x6 construction. Halo H27ICAT is the 6" you can use. Lots of manufacturers make these shallow cans.
You can use regular incandescent, fluorescent and LED lamps and have a large selection of trims. The only drawback is you can't use taller lamps or they might stick out the bottom. The most common is the 50PAR30 / 75R30 style lamps. These are also made in remodel style in case the ceiling is already up.
Here is the spec sheet for the H27
EDIT
I'll give this another try. I originally deleted this answer because it is not a slope can. Where I work, some people use regular can lights and use adjustable trims. Because of the depth you have, 8 inches, this can is 5-1/2 inches. I suggest you use a gimbal ring trim. It works like a eyeball, but the lamp is recessed so you don't get that 'bug eye' some people associate with eyeball trims. You can get the above can in 5 inch or 6 inch round cans, both IC rated, depending on the manufacturer your supplier uses. Think about a trim like this.
Make sure you use the same manufacturer as the can and trim to cover yourself. This gives you 2-1/2 inches for your channel and insulation. If this doesn't float your boat try going to a local lighting showroom and look at what they might have. If you want recessed you will find what you want. Consider LEDs to keep from getting the ladder out if your slope gives you a tall ceiling. While considerably more, doing it all together will be less painful. Either way PAR30 Halogen or PAR30 LEDs offer different beam spreads, so you can at least do something with the lighting.The biggest problem is you can't shine the light back to the wall, mostly straight down or with the angle the can is hung, not backwards. If you choose this, don't forget the dimmers!
At the Light
- Connect the white wire that leads to the recessed lights, and the white wire from the fan/light to the white wire in the ceiling box.
- Connect the the black from the recessed lights, to the black ungrounded (hot) wire that's controlled by the dimmer.
- Connect the red wire from the fan/light, to the red ungrounded (hot) wire that is not controlled by the dimmer.
- Connect all the grounding conductors.
At the switch
- Connect the LINE wire (probably black, but depends on manufacturer) from the dimmer, in with the black wire from the feeder cable.
- Connect the black wire from the armored cable, to the switched (probably red) wire from the dimmer.
- Connect the ground wire from the dimmer, with the other grounds in the box.
This should allow the dimmer to control the recessed lights, and the remote to control the fan/light.
Of course this assumes that power comes to the switch first, and one of the wires in the cable is always hot.
Based on the info you've provided, it should look something like this.
According to the documentation for the dimmer, the black lead is LINE and the red lead is LOAD.
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Best Answer
If the boxes in the concrete are round boxes, there are LEDs that give the look of recessed lights. Here is a link to a source for them. They can only go in a box with a few wires in them, they fill it up pretty well.