China 12 volt dc motor speed controller

{"pid":"11943139","cid":"41496","pimg_url":"\/\/img1.tradegrowthhub.com\/29\/d1\/f1f512eab78c\/product\/23899039_s-w400xh400.jpg","name":"4 fios controlador da velocidade do motor de uma C.C. de 12 volts, micro controlador SWT-201M do motor deslizante","company_name":"Changzhou Vic-Tech Motor Technology Co., Ltd.","attrs":{"Pre\u00e7o":"$20~30\/unit","MOQ":"1 Unit","Prazo de entrega":"15 work days after confirming the payment","Marca":"VIC-TECH"}}

{"pid":"14471101","cid":"53039","pimg_url":"\/\/img1.tradegrowthhub.com\/30\/2e\/30cdd17a7b48\/product\/36779315_s-w400xh400.jpg","name":"Pwm diminuto controladores da velocidade da C.C. do controlador 72W do motor de uma C.C. de 12 volts","company_name":"Shenzhen Jinshunlaite Motor Co., Ltd.","attrs":{"Pre\u00e7o":"Negotiation","MOQ":"10","Prazo de entrega":"5-8working days","Marca":"Aslong"}}

{"pid":"13526536","cid":"50732","pimg_url":"\/\/img1.tradegrowthhub.com\/7b\/2d\/de43463faa03\/product\/32466318_s-w400xh400.jpg","name":"Instrumento do controlo autom\u00e1tico 12 motor da engrenagem da redu\u00e7\u00e3o de velocidade BLDC da C.C. do volt","company_name":"Changzhou Bextreme Shell Motor Technology Co.,Ltd","attrs":{"Pre\u00e7o":"Negotiable","MOQ":"50pcs","Prazo de entrega":"as confirmed","Marca":"OWO"}}

{"pid":"44184202","cid":"337987","pimg_url":"\/\/img1.tradegrowthhub.com\/80\/17\/34ee8c682eb3\/product\/170711872_s-w400xh400.jpg","name":"12v 24v 36v 48v Controlador de motor de corrente cont\u00ednua sem escovas \/ condutor de motor BLDC 30A 12 24 36 48 volts Controle de velocidade PWM","company_name":"CHANGZHOU SMART AUTOMATION MOTOR MANUFACTURING CO.,LTD","attrs":{"Pre\u00e7o":"Negotiable","MOQ":"100","Prazo de entrega":"45DAYS","Marca":"SMART AUTOMATION"}}