I went with eight foot long T-12 fluorescent light fixtures that have two bulbs in all my garages. In my a 30X50 shop addition with 12’ ceiling height, I installed three rows of 5 fixtures end to end with non-apertured (no uplight) shaded Lithonia fixtures. Even though I have semigloss white ceiling for reflection, I bought the shaded fixtures because I like they way they look. I arrived at the configuration from past garages and located them keeping in mind lift and bridge crane locations.
They all have the old fashion magnetic ballasts and T-12 60 Watt style bulbs. I understand that the newer T-8’s with the electronic ballasts are better,, they are quieter, put out more light per watt, and startup better in the cold. At the time I experimented with the T-8’s and still went with the T-12 with magnetic ballasts. First off all my garages are heated to 70 in the winter, and cooled to 78 in the summer so I don’t have a cold weather problems. I don’t find the buzzing that bad. At the time I had a savings of nearly $1,500.00 purchasing 50 T-12 fixtures and bulbs over T-8. Plus I bought 50 replacement bulbs, enough to last me years. More than enough to persuade me to use the T-12.
All in all I have very even lighting with more than ample lighting for my tired old eyes to see!
Picture before moving in day.
Views from ceiling...
As you can see in the pic, I used an octagon junction box and ran 1/2" EMT to the T8 fixtures and replaced the switch with a Leviton commercial grade occupancy sensor. Hope this helps! 
