Features This is a DC-DC step-down converter module that convert 3.2V~35V to 1.25V~35V, maximum current is 3A DC-DC Adjustables Step-down Module: Buck-converter module is used for voltage step-down so please make sure that input voltage is at least 1.5V higher than output voltage High Efficiency: The buck-module can be remarkably efficient (maximum 92%), making it useful for voltage step-down Current of less than 2.5A is suggested for long time working; enhance heat dissipation if more than 2A(output >10W) Wide Application: Widely used for low voltage system power supply, 6V, 12V, 14V, 24V battery charging and regulated power supply Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement : Input Voltage: 3.2V~35V Output Voltage: 1.25V~35V Output Current: 3A (Maximum.) Efficiency: 92% (Maximum.) Output Ripple: Switch Frequency: 65KHz Operating Temperature: -45 DegreeC~ +85 DegreeC Size: 43*21*14mm/1.69*0.82*0.55" Package Includes: 2 x Buck-Modules Package List: 2pcs Buck-Converter