SMAKN&reg; DC-DC Converter Step-Down Buck Module 24V 36V (16-36V) to 12V 40A 480W waterproof power converter Input voltage: DC24V (18-36V). Output voltage: DC12V Output Current: 40A Protection: overvoltage, overcurrent, overtemperature protection, short circuit protection (no polarity protection inputs). 100% waterproof & anti-shock protection.