Check the listing for details. Fan Speed Controller (Low/Medium/High) for 2 TKFAN fans. Condition: New. Listed at 6.95 USD. ON/OFF + Speed Controller for 2 TKFAN fans and 1 mini air pump TKFAN fans available in the following listing: https://www.ebay.com/itm/234291912780 Switch and speed control assembly mounted on a 6” hexagonal circuit board for 2 TKFAN fans model DCH12038HV12B and a On/Off switch output for a mini Air Pump. Three soft touch switches with indicator LEDs. Includes wiring harnesses with quick connectors that plug directly to 2 TKFAN fans. SPECIFICATIONSInput Voltage 12 VDC (5 Amps minimum required to power 2 fans)Switch 1: Main Power On/OffSwitch 2: 3 speeds (Off/Low/Medium/High) for fan control Switch 3: Mini Air Pump On/OffSize: 6" x 5-1/4" x 1"This controller is exclusively designed for TKFAN fan model DCH12038HV12B and it is NOT intended for other fans. NO RETURNS