Description: Solid state capacitor, 36u thickened circuit board, high Q value and high power inductance strip output, LED indicator light Use as a step-down modules with overcurrent protection capabilities As it is a step-down module, in order to ensure stable output, please maintain a minimum pressure difference of 1.5v. Use as a battery charger, LED constant current driver module and More It is recommended to use the current within 2.5a when working for A long time, and add the heat sink (output above 10W) Specification: Product size: 25x35x2mm / 0.98x1.38x0.08inch Input voltage: 3V ~ 40V Output voltage: 1.25V ~ 35V Output Current: 3A(Max) Package Includes: 1 Piece DC-DC Adjustable Step Down Buck Converter Module