10pcs Mini360 3A DC Voltage Step Down Power Converter Buck Module 3.3V 5V 9V 12V Adjustable non-isolated DC buck voltage regulator, incredibly small module 17x11x3.8mm Great for LED lights, micro-controllers, battery chargers, and most other low power devices. Input: 4.75-23V, Output:1.0-17V, 3A Peak / 1.8A Sustained Efficiency: Up to 96% (depends on the difference between input and output voltage) This module uses synchronous rectification, the most efficient power conversion available. 340KHz switching frequency, Product Guarantee We offer a 30 day return policy and a one year warranty. Buy with confidence! Item Location All orders ship from Indianapolis, IN, USA Same Item in Other Lot Sizes 2 Pack $3.39 Free shipping Similar Items 5x MP1584 Adjustable Buck $7.89 Free shipping 5x 3.3V Fixed Output Buck $8.69 Free shipping 5x 5V Fixed Output Buck $7.99 Free shipping 100W Boost w/ Voltmeter $8.59 Free shipping 60W Buck/Boost w/ Constant Current $6.99 Free shipping 5A Buck w/ Voltmeter $8.69 Free shipping 2pcs 5A Buck w/ Constant Current $7.19 Free shipping 5A Buck w/ Constant Current & Voltmeter $7.99 Free shipping 130W Synchronous Buck/Boost (98% Efficiency) $17.79 Free shipping 5A Buck w/ Voltmeter & Digital Control $6.99 Free shipping