XL4016 8A 200W High-power DC Buck Converter Power Supply Board DC-DC 4-40V to 1.25-36V Step-down Module Voltage Regulator
https://www.vogueparade.com/shopping/EN/5/1/1005003755737469/xl4016-8a-200w-high-power-dc-buck-converter-power-supply-board-dc-dc-4-40v-to-125-36v-step-down-module-voltage-regulator//