There are a lot of industrials that have a "pedal" like a treadle machine, but the lever controls a bigger motor with a clutch. the electric sockets (outlets) are nice if you have extra lights or something like that to plug in. It's basically have a built in power strip. I've had a lot of larger tables that I've mounted a power strip underneath. In fact, my ironing area has one for the irons and other things we may want to plug in there.