WaterProof 30-120V to 12V 10-20A Step Down DC/DC Power Converter Regulator
Step Down DC/DC Buck Converter 12V/24V to 9V 6A Regulator Power Module RA. Waterproof DC/DC Converter Regulator 12V/24V Step Up to 32V 5A 160W. Waterproof Step Down Volt Converter AC12V To DC12V AC-DC Power Module 5A S9.