DROK 12V to 9V 2A 18W DC-DC Buck Power Converter Voltage Regulator Transformer Voltage Step Down Power Supply Module Waterproof

The module is buck power converter, therefore, output Voltage must less than input (minimum differential pressure:3V) Output Voltage: DC 9V, the output Voltage is fixed With over-temperature, over-current protection Adopt synchronous rectification technology, conversion rate up to 90 percent, low heat and low power consumption Adopt Glue craft, waterproof, anti-shock, moisture proof and dust-proof