Recessed receptical for 3" round box?

[Zeke]

This has been bothering my for years. I've looked and looked but something is zigging while I'm zagging or the Yin and Yang just don't fit.

I have a 1930's house that had knob and tube that I yanked out everywhere and replaced everything with 2014 NEC reqmt's including AFCI's. I love it.

Problem: there a 2) 3" round light fixture boxes in a wall that had old sconces on them. When I moved in 1998 I blanked off these 2 and covered them with paintings. Now after all this time, I'd like to use wall picture lights:

I don't want a cord hanging down the wall and since there is a box there, I can feed it off the new lighting circuit. So, a single recep recessed style would allow me to shorten a cord and plug in behind the pictures. I think I've seen these unicorns in my 50 years as a home improvement contractor but I can't find any to buy. Can't even get a pic off Google or Bing.

I could use a right angle plug because there are some options for a flush recep in a round box cover. And this is what I will do if necessary but even that isn't the easiest thing to find (might have to cut down a 4" cover). And cutting up a clock box doesn't quite get it done right.

Any help would be appreciated. If you have any, know of any, know where to find any, I'd be obliged. TIA

 

[Norcal]

Are your walls plaster? If so would make this suggestion difficult, which is change the 3-0 box to a single gang.

 

[AntonLargiader]

Are the existing round boxes even deep enough for the receptacle plus the desired recessed depth?

 

[Zeke]

Are the existing round boxes even deep enough for the receptacle plus the desired recessed depth?

Good thought and it's one I did think of and need to investigate. You know, if I found something then I would know the requirements. A side lug recep would likely fit. We did the lighting with 14 ga. so that part would be easy. No wire nuts in the box as I can loop these in a j-box under the house.

Are your walls plaster? If so would make this suggestion difficult, which is change the 3-0 box to a single gang.

Yep, plan B.

 

[AntonLargiader]

If you could fabricate the right kind of cover, you could roll your own non-listed solution with something like this:

https://www.batteryjunction.com/sillites-self-rcbt.html

 

[cybrdyke]

that's commonly called a clock receptacle.
Also, you can get picture lights that are hardwired. Wont those be better?
You can get picture lights that are battery powered as well. With little LED lights, the batteries last a long time. Then you can put them anywhere.
CD

 

[Zeke]

I'd like the lights to function with the other existing wall sconces.

If you could fabricate the right kind of cover, you could roll your own non-listed solution with something like this:

https://www.batteryjunction.com/sillites-self-rcbt.html

That's a great start. Thanks.