Autek DC Converter Buck Module 12V convert to 5V usb output power adapter(DCCON-5U-0) Super-thin, small size, high efficiency, easy installation and use. Epoxy potting, seismic, water, moisture, dust, long term stable and reliable quality Over voltage, over current, over temperature, short circuit, it can be auto protection, and can work in normal condition when restored. Convert unstable voltage DC 12V to stable DC 5V/3A 15W output Warning: Input Voltage DC 8-16V, Max 20V