Cheap And Discounts LM2596S DC-DC Adjustable Step-Down Power Supply Module 3A adjustable step-down module regulator 24V to 12V 5V 3V Wholesale. Buy Directly From Merchant Shop1105159560 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.