When you put 20c in the meter it allows power until your money runs out you can keep clocking up credits you dont have to do 20c at a time lol.  Once the shed is extended ill be wiring it in so that i have to prepay for my pinball power that way the wife  can get stuffed if i leave em on all day (I KNOW EVERYONE WHO READS THIS CAN HEAR THERE PARTNER IN THE BACK OF THERE MIND LOL) Yeah next project will be a blast