I went to Home Depot and bought their "Commercial Electric" brand. Being in American manufacturing, I looked for non-Chinese alternatives, but I could not find any.
I had put one of these Commercial Electric lights over my workbench the week before, and I was so happy with the amount of new light (as well as the color temperature), that I went out and bought 8 additional fixtures for the 2 car garage. I ended up mounting 6 of those on the Impala side. While I do probably need suntan lotion on for working under that much light, I am so happy with it that I am going to put 6 fixtures on the remaining side of the garage too.
This is what I bought:
Commercial Electrics 4 ft.4-light Plug-in Integrated LED Heavy-Duty Utility non-dimmable shop light, uses 80-Watt and comes fully assembled with an ultra-light weight design that can be used in hanging
www.homedepot.com
$60 each isn't cheap, but I needed to do it. My house is old and crappy, so I had the garage door opener light and a single pull-chain over each bay.
If you already have florescent fixtures, you might want to look into the led bulb retrofit kits, rather than mounting new fixtures?