Check the listing for details. 1pc DC-51 AC 220V to DC90V 12/24/36/180V Electrical Speed Control Controller new. Condition: New. Listed at 17.98 USD. Specifications: Product Name Motor Speed Controller Model DC-51 Material Plastic, Electrical Material Power Supply AC 220V, 50HZ Output Voltage , (We also have DC 12V, DC 24V, DC 36V, DC 180V. Please tell us the Output Voltage you want. Or Else, we will send DC 90V to you.) Size 9 x 6 x 10cm/ 3.5" x 2.4" x 3.9" (L*W*H) Color Gray Weight 170g Package Content 1 x Motor Speed Controller Description: We have the Output Voltage of DC 12V, DC 24V, DC 36V, DC 90V, DC 180V, Please tell us the Output Voltage you want. Or Else, we will send DC 90V to you. Can be used for 10W/20W/30W/50W/100W/150W/200W DC motor. Green LED indicator, 6 terminals, on/ off switch for controlling, the knob switch for adjust the speed. Used for Machine Tools, Textile Machinery, Medical Appliance, Conveying Machine, Printing Mechanism,Food Machinery, Vending Machine, Packing Machinery, Gumming Machine, etc. Note:the Input voltage is AC 220V, please pay attention to the voltage to make sure the item can work successfully in you area.