Features Volt Converter: The buck and boost converter can convert DC 5V to DC 3.3V 9V 12V 24V, which will provide you with stable power supply. Adjustable Use: Moreover, the converter module used multi turn adjustable potentiometer to regulate the voltage with higher accuracy. Simple Testing: Besides, the power converter with digital display can also test the positive voltage and current, useful and reliable. The Protection: When the output voltage is less than 0.8v, there will be undervoltage protection LVP. When the output current is greater than 2A, there will be overcurrent protection OcP. In case of overpower use, there will be overpower protection OPP, Easy to Install: Comes with a light weight and a compact size as well, the convenient installation can be quickly completed in minutes. Specification: Item Type: Buck Boost Converter Input Voltage: 3.5V-12V Output Voltage: 1.2V-24V Note: This product is not a high power power supply, please use it within the power range. Power: At 1.2V~2V output voltage, the working power is within 2W. At 2V~20V output voltage, the working power is within 3W. At 20V~24V output voltage, the working power is within 2.5W.  Package List:1 x Buck Boost Converter Note:The application of the system needs a certain electronic ability. This product can only measure the positive voltage and current. Do not connect the wrong wire. It is easy to damage the product after the positive and negative poles are connected Package List 1 x Buck Boost Converter