Feature:1. High Conversion Efficiency: Buck converter is widely used in fixed work, synchronous rectification, high circuit conversion efficiency, circuit conversion efficiency up to 92%.2. High Frequency: The voltage regulator module has high efficiency, ultra small size, high frequency, small ripple and stable working performance.3. 12 to 24V Voltage Input: Reduction voltage module input 12 to 24V voltage, output 9V/2A voltage regulation. The power is 18W, and the performance is stable.4. Efficacy: This buck converter allows you to get a fixed output voltage by soldering a pot on the board, you can adjust the fixed output voltage by a potentiometer as needed.5. PCB Material: Buck converter is made of PCB material, easy to operate, just install the reduced voltage module to use, it will not take you too much time.Specification:Item Type: DC to DC Buck ModuleMaterial: PCBInput: 12 to 24VOutput: 9V/2APower: 18WConversion Efficiency: 92%.Package List:5 xDC to DC Buck Module