... energy-saving 30%~40% compare to AC motorEasy motor speed control and 100% controllable speedEnvironmental friendly, low emission ... and digital interfaces, including BLDC/EC motor drive, speed controls, over temperature protected, cross-current protection, over ... productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); PWM variable speed Brushless DC motor driver with alarm reply