Professor Motor "HO & 1/32 Low Cost" Base Model Electronic Slot Racing Controller - (Replaces PMTR2057) - Heavy gage silicone insulated 13 gage wire harness, solid copper plated alligator clips with color coded insulating boots - POSITIVE polarity - Recommended Operating Voltage Range : 12 to 15 volts - Recommended Applications : Stock or mildly tuned 1/32 RTR Cars (Scalextric, Carrera, Ninco, Monogram, etc.), stock to moderate tuned HO