Cheap And Discounts 30A DC 6V-60V PWM Speed Controller Motor 12V 24V 48V Digital LED Display 0~100% Adjustable 15KHZ With Potentiometer Switch Wholesale. Buy Directly From Merchant LM Factory Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.