We offer discount for large quantity. We invite you to ! DC 10-55V 12V 24V 36V 48V 55V 100A Motor Speed Controller PWM HHO RC Reverse Control Switch With LED DisplayWorking Voltage: 10V-55V Output Voltage: Linear Under LoadInput Current: Requires Large Than Motor Working Current Output Current: Depends On Load SizeOutput Current: 0-100A Continuous Current: 60A Non-Operating Current: 0.01A (Standby)Maximum Power: 3000W (Power=Voltage*Current)Motor Power Adjustment: 0.01-3000W,12V: 720W(max), 24V: 1440W(max),36V: 2160W(max), 48V: 2880W(max),50V: 3000W(max). Knob Hole: 7mm Speed Type: Adjustable Current Speed Mode: ON/OFF 270 Degree Linear Potentiometer Speed Range: 0%-Frequency Control: 15KHZ Speed Control: Potentiometer (With Switch) Knob Specification: 100K (With Switch) Speed Type: Flow Control Top Rotation: Support Digital Positioning Screen: 0-100 (Percent Full Speed)Board Size: 120*96mm/4.72*3.78 inch Color: Green Material: Plastic Package Content:1 * Regulator motor speedOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm. About UsWe provide good product with best price, we support wholesale order/