DC speed controller

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{"cid":"145104","pid":"24839051","pimg_url":"\/\/img1.b2bforus.com\/39\/ba\/3b493845500c\/product\/86551866_s-w400xh400.jpg","name":"Brush DC Motor High Power 70A DC12V PWM Current DC Motor Speed \u200b\u200bController For Industrial Agricultural","attrs":{"Price":"Negotiable","MOQ":"5 Pieces","Delivery Time":"Negotiable","Brand":"Aiconnecting"}}

{"cid":"145104","pid":"24839041","pimg_url":"\/\/img1.b2bforus.com\/39\/ba\/3b493845500c\/product\/86551796_s-w400xh400.jpg","name":"DC 12V 24V 48V 40A 2000W PWM Reversible DC Motor Speed \u200b\u200bController with Digital Display and 2000W Coverage","attrs":{"Price":"Negotiable","MOQ":"5 Pieces","Delivery Time":"Negotiable","Brand":"Aiconnecting"}}

{"cid":"145104","pid":"24839030","pimg_url":"\/\/img1.b2bforus.com\/39\/ba\/3b493845500c\/product\/86551756_s-w400xh400.jpg","name":"30A PWM Speed \u200b\u200bController Governor DC Motor Speed \u200b\u200bRegulator with Reversing Direction Switch and Shell 110*78*38MM","attrs":{"Price":"Negotiable","MOQ":"5 Pieces","Delivery Time":"Negotiable","Brand":"Aiconnecting"}}