One hour??? Dang! They are quick.
With that kind of time seems like some shortcuts were taken. Did they even swap out the ballasts? Opening up fixtures can be a pain, and a soffit can amplify the difficulty factor.
Edit:
Years ago, part of a fixture change out in the showroom of a tire store in the SF Bay Area, there were no Lithonia wraps (LB series) w/ T8 ballasts avail on the West Coast so the T12's were pulled & T8 ballasts installed, it got so I could uncrate the the fixture, strip out the old ballasts & replace the ballast in 10 min a fixture, & that was on the ground, ladder work is much slower.
