SMAKN&reg; Waterproof DC/DC Converter 12V (10-30V) Step UP to 48V/2A 96W Power Supply Module Epoxy potting, waterproof, moisture, dust, long term stable and reliable quality. Thin, small size, high efficiency and easy installation. Aluminum alloy Shell waterproof quality is stable and reliable. Synchronous rectification, conversion rate is 94% with very low heat. Auto protect over voltage, over current, over temperature, short circuit, can work in normal condition when restored.