Waterproof Step Down Volt Converter AC12V To DC12V AC-DC Power Module 5A S9
Waterproof DC/DC Converter Regulator 12V/24V Step Up to 32V 5A 160W. Step Down DC/DC Buck Converter 12V/24V to 9V 6A Regulator Power Module RA. WaterProof 36V/48V to 12V 25A 300W Step Down DC/DC Power Converter Regulator RA.