Clark Kent

Thanks for responding. If I were to take a shot at it, which to you recommend?  and what do i need to look at when purchasing the pot or stat. what info on them do i need. thanks. 

Hi. New to the forum. I need to run a little motor out of a printer. I found a line in a laptop charger is 16v, lowest one. Other line is 32v. Anyway, the 16 will run the little motor just fine.  I need to control that speed. It's either on high or off. Potentiomeeter, or rheostat?  Please explain the choice. Thank you. I'm trying to get some quick education on this.