Input range from 36V to 60V DC . 500W Output with 12V, 24V, 48V combinations. Complies with CISPR22 Class A for EMI/EMC. Complies with IEC61000 series for Surge & EFT protection. Resonant Zero Voltage Switching concept for high reliability . Available in 3W & 5W model. Intelligent Battery Charging for extended life.