dadiOH wrote:

If they are one inch in diameter they are T-8, not T-12

The LED T8 bulbs were almost exactly 1 inch based on measuring with a ruler.

The T12 fluorescent bulbs were definitely NOT 1-1/2 inches, but they were
1-3/8ths inches, which, I guess, is either a T11 or close enough to be a T12
(since they say they are 40 watts).