12V24V30V 30A Wireless Remote Control DC motor Speed Controller Reverse Control ModuleFeature:Power supply: DC12V-30VPower range: 12v-200W;  24V -400WCurrent range: 0-30ASpeed range: 0%-100%PWM frequency: 21kHzSize: 160mm x 92mm x 43mmSpeed control mechanism:For regulating the speed of the initial system startup、 when the system starts、 the speed of the speed control knob to position prevail. When you press the plus or minus button on the remote control、 remote control button to speed prevail.When adjusting the speed control knob more than 15 degrees again、 the speed control knob to control the speed of recovery.Uses:When the motor is running、 the corresponding sensor or switch is closed、 the motor stops.Note:1. Can not use with AC power supply2. Can not connect wrong !#!amp!*!quot;+!#!amp!*!quot; !#!amp!*!quot;-!#!amp!*!quot;Package included:1 x 12V24V30V 30A Wireless Remote Control DC motor Speed Controller1 x Remote Control