I am guessing that this is an abandoned building, I am surprised that the power is on. Logan I am sure that you already know this but you really should not be on top of a lift messing around in an abandoned building. There are so many things that could go wrong, I really wouldnt want to see you get hurt ,or worse, like us get into trouble because we knew you were doing this stuff and didnt say anything
IIRC they are seperate it wouldnt surprise me if each one was 800 or 400mA But you will have additional 12v connections other than hold off for example if you want to balance the loads