tramcar trev
all manner of mechanical apparatus...
http://www.ebay.com/itm/F05427-RC-10A-Brushed-ESC-Two-Way-Motor-Speed-Controller-No-Brake-For-1-16-1-18-/351215320561?pt=Radio_Control_Parts_Accessories&hash=item51c6107df1
These will take 12V @ 4amps without burning out....
These will take 12V @ 4amps without burning out....