1.Soft start and soft stop, dual protection for motor and power supply Lower limit of speed, limit the minimum speed, reduce the minimum starting space2.Dual use of 0-9990 four di dial tube, scale percentage meter, and og 3.9 speed adjustment increment values, fine tuning, quiadjustment Multe startup modes, more di handling, and more versatile applications4.Dial display menu style options, intuitive and easy to understand, easy and fast to modify settings Power off memory function, set once, long-term use5.Forward stop and re three gears, forward rotation and re rotation, arbiry switching Supports dual speed, different directions, and different speedsEmbedded knob switch, integrated body, more exquisite appearance Knob+on speed control, 360 degree mechanical feel knob, membrane onWide voltage range, suitable for 10-55V, wider application range for motorsInput voltage: DC 10-55VDisplay method: 4-di dial tubeSpeed regulation method: on and knobSupported load: DC brushle motorInstallation method: embeddedWiring type: fence type terminalMaximum current: 40ASpeed regulation type: current regulationControl frequency: 15KHZForward and re: bidirectionalSet the number of functions: 7Colour:BlackMaterial:plasticPackage Contents:1x DC10-55V 40A Motor ControllerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the ture a little different from the real thing. The measurement allowed error is +/- 1-3cm.