Cheap And Discounts DC6V-32V / DC6V-40V to 5V 9V 12V 24V 3A Step Down Power Module 500kHz Low Ripple Buck Power Module High Conversion Efficiency Wholesale. Buy Directly From Merchant Tech Hub 103 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.