Cheap And Discounts NEW PWM DC motor speed controller 2A 3A 5A 10A switch function DC-DC 4.5V-35V Adjustable Speed Regulator 24V Wholesale. Buy Directly From Merchant YongYeTai Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.