DC-DC 10A Buck Boost Converter Step Up Down regulator Module for LED Driver AU | eBay
Buy Buck Boost Converter, DC 6V-36V to DC0.6V-36V, Step Up Down Power Supply Adjust Converter, Voltage Regulator Constant Current Reverse Protection Short Circuit Protection Online in Japan. B082TVFY7L
Buck–boost converter - Wikipedia
DC-DC Boost Buck Step Up Down Adjustable Converter 4-28V to 3V 5V 12V 19V 24V 3A | eBay