Slowly and surely all is being changed out to LED tech. Although the garage lights don't get much use the reduction of energy will never make a ROI.
Three of the six fixtures the ballasts had died. So what's one to do. Order new LEDs and replace them all.
$150.00 for 12 LED tubes. Quick calculations puts the ROI at 50 yrs for the amount their used.
We did confirm the current draw between the old fluorescent and new LEDs.
The reduction was 12%
The plus side the garage is now extremely well lite with 6000K (daylight) light.
Randen