Professor Motor Carrera 1/32 & 1/24 "Home Set" Model (Replaces PMTR2062) Electronic Slot Racing Controller - Recommended Operating Voltage Range : 14 to 19 volts - NEGATIVE polarity - extra long PVC insulated leads & Carrera terminals - New "Platinum Series" transistor based technology - Recommended Applications : 1/32 & 1/24 Carrera home and club track racing