I agree. I just replaced three commercial grocery store florescent ballasts. I replaced each hot because that is how I roll. With no bulbs in the fixture, there was still a small spark when I connected the power leads. It drains power just like your cell phone charger even if the cell phone is not attached. If ballasts work like stereo amps, not having speakers connected causes them to heat up and burn out since there is no load and the power has to be dissipated by the amp...or in this case the ballast.its a waste of power for sure and pointless
good info dirty.. i didn't think it would be the same thing as say a light fixture not having a bulb in it as ballasts work much differently then say a light..I agree. I just replaced three commercial grocery store florescent ballasts. I replaced each hot because that is how I roll. With no bulbs in the fixture, there was still a small spark when I connected the power leads. It drains power just like your cell phone charger even if the cell phone is not attached. If ballasts work like stereo amps, not having speakers connected causes them to heat up and burn out since there is no load and the power has to be dissipated by the amp...or in this case the ballast.
I was actually waiting for you to weigh in on this. I knew if anyone would understand the question you would pick up on itno damage. it will use a lot less current, but still run. i know your pain, are they mounted in the ceiling or super high up?
You are not alone there buddy!dumbass moments like me refilling the res. and forgetting the water was running ----> resulting in severe overflow =P