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I removed the ballasts and finished rewiring the remaining 4 lamp fixtures in the garage so they'll work with LED tubes. (I had already done this for 2 of the fixtures a few years back.)
This is what they looked like to begin with, with the cover removed:
This is with the ballast removed, and the wires from the ballast cut. I believe the grayish blackish discoloration is from all the heat that the ballast & fluorescent tubes gave off.
On the end that was closest to the ballast, I simply coil up the cut blue & red wires, as when using single-ended LED tubes, wires are not needed on one side.
On the other end, I strip about 2cm of the cladding off the yellow wires.
I connect one of the yellow wires to the white wire(s) coming out of the ceiling, and the other yellow wire to the black wire(s) coming out of the ceiling, and tighten them both with winged wire nuts. The winged nuts twist on and hold so much better than plain wire nuts. "Wingardium leviosa" kept popping into my head because their brand name is "Wingard".
This is how I prop up the fixture cover, so I can refasten the screws on each end. I have a roof rake with an extensible handle, and a tree branch lopper also with an extensible handle. So I adjust the handles to an appropriate length, and use them to prop the cover up against the fixture.
I label the end of the fixture with the live wires, so I'll know which way the tubes need to be inserted.
This is what it looks like with the LED tubes in:
This page explains the rewiring of fluorescent fixtures:
Direct Wire LED T8 Tube Lights and What You Need to Know About Sockets
Now I just need to order 8 more LED tubes and insert them. Inserting them is one of the hardest parts; it's always tricky getting the pins on both sides of the tube to go in right so that they'll twist into place.
The before-last photo also shows one of the boards I screwed into the ceiling last year, to fix the sagging drywall ceiling panels. The panels had been sagging down due to rain that occasionally leaked into the attic, before the roof was replaced.
This is what they looked like to begin with, with the cover removed:
This is with the ballast removed, and the wires from the ballast cut. I believe the grayish blackish discoloration is from all the heat that the ballast & fluorescent tubes gave off.
On the end that was closest to the ballast, I simply coil up the cut blue & red wires, as when using single-ended LED tubes, wires are not needed on one side.
On the other end, I strip about 2cm of the cladding off the yellow wires.
I connect one of the yellow wires to the white wire(s) coming out of the ceiling, and the other yellow wire to the black wire(s) coming out of the ceiling, and tighten them both with winged wire nuts. The winged nuts twist on and hold so much better than plain wire nuts. "Wingardium leviosa" kept popping into my head because their brand name is "Wingard".
This is how I prop up the fixture cover, so I can refasten the screws on each end. I have a roof rake with an extensible handle, and a tree branch lopper also with an extensible handle. So I adjust the handles to an appropriate length, and use them to prop the cover up against the fixture.
I label the end of the fixture with the live wires, so I'll know which way the tubes need to be inserted.
This is what it looks like with the LED tubes in:
This page explains the rewiring of fluorescent fixtures:
Direct Wire LED T8 Tube Lights and What You Need to Know About Sockets
Now I just need to order 8 more LED tubes and insert them. Inserting them is one of the hardest parts; it's always tricky getting the pins on both sides of the tube to go in right so that they'll twist into place.
The before-last photo also shows one of the boards I screwed into the ceiling last year, to fix the sagging drywall ceiling panels. The panels had been sagging down due to rain that occasionally leaked into the attic, before the roof was replaced.