I am trying to purchase a ballast for a 2 lamp fluorescent light fixture. The one that is bad is a Universal Therm-o-matic 446-LR-TC-P T 12 unit with 2 blue and 2 red wires on one end and 2 yellow 1 black and 1 white wires on the other. All the ones I see fort sale on Amazon, Lowes, Home Depot, do not have those exact wires. I was hoping for a direct replacement so I could just swap it out using the same wires. Where can I find one that will work?

New house to me as of a month ago. I was trying to remove a light fixture to install LEDs and the whole fixture comes off as I break the screw holding the fixture to the phenolic (brittle) ceiling electric/junction box. Carlon/T&B (Thomas and Betts) I think is the brand/type It looks kind of like the one in the picture below but seems like the metal backing is only on one side, but the hole is not big enough to pull the box out as I need to replace it since the screw mount for the light fixture is broken. One nail was visible and I tried to remove it but it was bent, so as I tried to remove the nail it snapped - Doh! There is some free play and it feels loose on one side, I can grab the loose side with a vise grip and pull very hard but this is probably still nailed in very tight. House was built in 1989 1. Why this style instead of the blue boxes or metal boxes -fire code? Its a light fixture controlled by a three way switch in the basement 2. How do I remove this thing without cutting the ceiling sheetrock? 3. Do I have to replace with similar or can I use the blue version I see at HD or Lowes? Thanks in advance - plans are to replace with a light fixture which will not be very heavy I will take a picture of the problem and repost shortly. [img]https://cimg9.ibsrv.net/gimg/www.doityourselft.com-vbulletin/236x316/thobete16034_wb_32_pe_002_d2ff020283b0c07f73deb49f34f855f9311878a3.jpeg[/img] [img]https://cimg0.ibsrv.net/gimg/www.doityourselft.com-vbulletin/2000x1587/screen_shot_2021_11_26_at_10_40_58_am_357075fc751447290294c7cd42b406c6ff116957.png[/img]