Having thought about this thread, and all the ideas in it, I decided to rebuild my loading area lighting. It's a small "workshop" in what used to be a large closet. Some of the lights and stuff in it were put in place 20 years ago, so I could work on radio control race cars.
All the old lights, extension cords, cables, and stuff came out. That was a good opportunity to clean out stuff I (hopefully) won't need. Around 5pm I went to Ace Hardware, to get a new light.
The choices were pathetic - the one that they assured me would put out "a lot of light" turned out to be less light than a flashlight running on empty. I went back and spoke to one of the support people who knew what's what, but he couldn't help me - until he found a light that had just come in - nobody knew anything about it. It's 40" long, about what I needed, reasonably heavy (good!), and it feels like it's built for military use - rugged.
It was easy to mount, with the included chains, and when i turned it on - wow!!!!! It's hard to describe how bright it was - it "felt" more like what doctors would have in an operating room.
After I had it hooked up (literally) I searched it out on the internet:
Not a very good photo - it's not blue, just white.
The one I bought is 40SLSHP3840ND-120V. I think it's 3800 Lumens. It's also available in a 4800 Lumen model, which I would have bought, given the chance, but which I'm now glad I did not buy.
The price at Ace Hardware was $50, less than it's going for on Amazon.
Added later - I forgot to mention it comes with a good, thick, heavy duty electrical cord and plug, not the toy wiring most lamps come with!