- by Todd Benadum
- April 30, 2021
Most of what we stock are new pad mounts due to the newer and higher efficiencies plus the longer life span. In the past we have purchased used units for resale and found out many of them were not up to our standards. With used units you have to be careful how old they are because transformers on average last 20 to 30 years. If a used unit is already 25 years old, how much life does it have left?