PGSA2Z 97mm x 33mm 5200RPM Blower Fan Dual Ball 12 Volt High CFM 110v 220v Variable Speed Controller with AC Pulg for DIY Cooling Ventilation Exhaust Projects, Inflatable Replacement

PGSA2Z 97mm x 33mm 5200RPM Blower Fan Dual Ball 12 Volt High CFM 110v 220v Variable Speed Controller with AC Pulg for DIY Cooling Ventilation Exhaust Projects, Inflatable Replacement

Electronic Spices Mini PWM DC Motor Controller Adjustable Speed Controller Regulation Switch 5A Ultra small LED dimmer with Speed Control Knob works with (3V,6V, 12V, 24V,35V)

Robodo SEN51 PWM DC 6V 12V 24V 28V 3A Motor Speed Regulator Control Switch for DC Motors