Waterproof DC-DC Boost Step-Up Converter 1A 6V To 12V Car Power Supply Module
3:Waterproof, shockproof Design,good heat dissipation, easy to install. 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.