After putting those little LED light strips over my workbench, I quickly developed a healthy respect for how much light you can get from something so small consuming so little power. Now, I seem to have some mental radar for anything I might use in the garage. That's how I found Big Ass Lights. They're LED lights for commercial and residential applications and their photos show some pretty impressive changes from the old lighting they replace.
This unit, imaginatively called the Garage Light, looks like it's just the ticket for a dark garage workshop. Each unit puts out 13000 lumens with 122 watts. They're supposed to last 150,000 hours and they come with a seven year warranty. They're not cheap, $399 and another $40 if you want an occupancy sensor, but for that much light with so little power, I have to check these out.
Link: BigAssLight Garage Light