Waterproof DC-DC Boost Step-Up Converter 12V to 24V 5A Car Power Supply Module U
Waterproof DC/DC Converter Regulator 6V Step Up to 12V 2A 24W. WaterProof 48V to 12V 30A 360W Step Down DC/DC Power Converter Regulator UK. WaterProof 12V/24V to 5V 10A 50W Step Down DC/DC Power Converter Regulator UK.