As same as S1200, S600 still features High efficiency and Smaller size, Active PFC make the lower input current, save energy and more reliable. High PF improve the energy consumption from main power grid evidently.
As far as large power of 1200W, efficiency and size is more important than small and middle power adapter. Efficiency=Pout/Pin*100%, Pout=Vout*Iout for S1200, Pout=24V*50A=1200W If efficiency=94%, means consumptive energy is 72W---1200×(1-0.94); if it is 85%, it will be 180W.
Your eFUEL switching DC Power Supply is designed to use household AC power source to power equipments that required DC power. The eFUEL converts standard household power 100-240V AC to 12-18V DC power and can supply up to 30 amperes of continuous power.
With 1200W outputs, adjustable output voltage from 15-30V and active PFC, it is the most advanced power supply you will find anywhere. 1200W of output is ideal for a variety of high powered chargers, and three outputs allow you to simultaneously operate multiple chargers or other devices.