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DC PWM 12V 24V 36V 10A HHO Motor Speed Control Controller Specification: DC Motor Speed Controller allows controlling speed of a DC motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully adjustable from 0%-100%. The motor speed controller can provide a continuous current of 10A to your DC motor or other DC load. The circuit also includes a 20A fuse, with reverse connection of power supply and control voltage over-voltage protection function. Main technical parameters: Input supply voltage: 12V-40VDC The maximum output power: 0.01-400W The maximum continuous output current :6A; The overload and short circuit protecting current is 10A PWM frequency: 13kHz Duty Cycle adjustable:10%-100% The 20A fuse with reverse connection of power supply and control voltage over-voltage protection function Can adjust the speed by the external 0-5V signal Specifications: Item size:60*55*28mm Two mounting holes of 3.2 mm each Net weight:66g Important Notes An appropriately rated fuse (rated a little higher than the maximum current you expect to draw) is recommended to ensure safe operation. The controller is with reverse-polarity protection and the fuse will be damaged if connect the supply voltage with wrong polarity. Double check all connections before applying power and always turn off the power supply before making any wiring changes.