Item Type: Step up Converter Module_x000D_Material: Printed Circuit Board_x000D_Application: Control the change of DC voltage. _x000D_Input Voltage Range: DC 3~35V_x000D_Output Voltage Range: DC 5~40V_x000D_Conversion Efficiency: More Than 90%_x000D_Switching Frequency: 180KHz 1This step up converter module has a wide output voltage range form DC 5V to 40V. 2The conversion efficiency is more than 90 percent, promising a stable power supply. 3Increased reverse connection protection to avoid misconnection and burnout. 4With strong oxidation resistance, the module can effectively avoid cold joint. 5Made of high quality printed circuit board, this module has a long serving life.1 x Step Up Converter Module