JHZR2
Staff member
I’m putting a new ballast in an old fixture, and the wiring isn’t what I’d expect. My anticipated way was to separate two-wire feeds, and then the common return where the one tombstone was in parallel with the other, just jumpered over.
instead it was two dedicated sets of conductors,mSo each bulb had its own specific set.
In the image above, the top (8-wire)is how it was set up, and the bottom (10-wire) is how the wiring came with the new ballast, and how I rewired my fixture as a result.
The rewired fixture works great. But I don’t understand why they set it up this way. I don’t think it’s really any more redundant or reliable.
Im still running f20t12 bulbs in there. They start and run fine.
Any ideas? I don’t understand lighting very well….
instead it was two dedicated sets of conductors,mSo each bulb had its own specific set.
In the image above, the top (8-wire)is how it was set up, and the bottom (10-wire) is how the wiring came with the new ballast, and how I rewired my fixture as a result.
The rewired fixture works great. But I don’t understand why they set it up this way. I don’t think it’s really any more redundant or reliable.
Im still running f20t12 bulbs in there. They start and run fine.
Any ideas? I don’t understand lighting very well….