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There are tons of questions about installing and replacing ceiling lights already, and I was looking through them but I didn't feel like checking 106 pages of results to make sure my question isn't a duplicate of another one! So... here we go. :)

I am very illiterate when it comes to electric installations and wiring, but I have a dated flush mounted ceiling light in a hallway I'd like to replace. Today I removed all the parts I dared to, but now I'm not sure where to continue.

First of all, what is all that insulation stuff inside the base of the old fixture? I'm hoping I didn't just expose myself to asbestos...

Second, many of the new fixtures I've looked at are for two bulbs and this one is just for one bulb. Is there any way I can use the existing wiring to install a two-bulb light fixture?

Third, I've seen pictures and read about there being a ceiling bracket that the light connects to. Will that be above this round box? I don't want to go too far and remove everything from the ceiling if it's not necessary.

I haven't bought a new fixture yet, but decided to get this much done for now.

So... what are your opinions on this? Is my goal possible? Do you see anything "scary" about what's there that I should address? enter image description here enter image description here enter image description here

Tagger
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Nothing too scary about your situation. That is fiberglass insulation. I still would avoid breathing it in. One thing to start with is that light fixtures do not last forever, especially when they used incandescent bulbs. They deal with so much heat that the metal parts start to break down. I recommend that you replace the fixture. That is a pancake box screwed to the ceiling joist. Leave it be. Get rid of everything else except the pancake box and the wires coming through the back of the box. Purchase a new fixture, preferably with LED lights either integrated of bulb style. Follow the instructions with the new fixture for installation. You can do this! P.

Paul Logan
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The mystery material is fiberglass insulation, which was probably part of the old fixture. I suspect it was more about preventing heat damage like blistering paint rather than actual fire prevention. In any case you should discard it with the old fixture and refrain from stuffing insulation into electrical boxes, which I believe is a code violation most places. Other than that you're good to go shopping.

Thankfully all fixtures use the same wiring regardless of the number of bulbs, just like Xmas lights and multi-bulb floor lamps use a single plug. The only caveat is that heavy fixtures such as ceiling fans and chandeliers require boxes rated for the weight. You should be fine with any fixture you like.

Your current fixture is attached directly to the electrical box, which is why you haven't found the mystery bracket. Boxes are a standard size, but not every light fixture can accommodate the screws being there. In that case the fixture is attached to a metal bar that's screwed across the box. If the new fixture needs a mounting plate it'll likely ship with it and instructions.

Matthew Gauthier
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