I like to do things my own way. One of the things I recently did was buy a 4 pack of 48" LED tubes off amazon. it came with 4 non-shunted tombstones.
The tombstones are great if you want to put them in a fixture. Since the LED tubes are directional light I really don't care about fixtures.
I purchased some cheap spring clips for 1" conduit and screwed those to the ceiling. They are very cheap and don't hold the greatest. This was actually done on purpose since I have a tendency to hit the tubes with lumber and other things I am moving around. The cheap clips will allow the bulbs to move instead of destroying them.
The big dilemma this left me with was how to get power to them. I used some **** connectors that I crimped onto the really cheap $2 extension cords. Then I pressed the but connector onto the pins on the light.
I would love to have a nice molded connector that could just slip over the end of the bulbs with long enough cords so I can run a line of outlets through the center of the garage, plug the lights in and hang them from the ceiling. be even better if the molded connector had a way of fastening to the ceiling. Screw hole or whatever.
even if it was just a molded connector that needed to be hard wired that would still be fine.
If you need more information or clarification I can do a sketch or model. or even take pics of my cheezy setup.
just as a side note, this setup is also great for when you need to move lights. I pulled one of the lights off the ceiling the other day and shoved it into the engine compartment of the vehicle I was working on. best drop light ever

be even better with good molded connector on the end