Hi, looking for help on installing LED overhead panels, I'm replacing florescent tubes and their housings

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2. What I would do is either terminate the conduit with a plug-in outlet in an externally mounted

box, or replace each FL light fixture with an electrical outlet, leaving the entire conduit run intact, only now with electrical outlets instead of FL fixtures.

You can then buy self-enclosed LED fixtures that are very thin like you describe, that essentially "plug-in" to each other...male plug to female outlet in the end of the LED fixture. You can string them together this way, or, if you install enough outlets to replace the FL fixtures, you can just plug into those outlets without stringing the new LED fixtures together.

I did this in my garage with 4 ft. LED fixtures that have long bulbs, similar to FL.

They work great.