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Continue to Chat20A 300W High-Power Buck Converter Step-Down Module DC 6-40V to DC 1.2-36V Adjustable https://www.multanelectronics.com/product/20a-300w-high-power-buck-converter-step-down-module-dc-6-40v-to-dc-1-2-36v-adjustable-constant-voltage-constant-current-power-module-charging-led-drive-with-short-circuit-protection/