1. Surge Protection: A soft start circuit is built inside to prevent an inrush current at the starting moment. Home circuit breaker not trip off at the starting moment; 2. Toroidal Transformer: with ultra-thin ring-type transformer, slim, small size(7*18.5*24cm/2.76"*7.28"*9.45"), light weight(7.5kg/16.5LB), energy saving, quiet and high efficiency; CE & CQC Certified! 3. 2 outlets: can use 2 equipments (one is with 110V, the other one is with 100V) simultaneously, just the total power consumption not exceed the rated power(2000W) of the converter; 4. Safety: LED indicator clearly display input voltage and output power; The beeping tells you it's over-loaded; 5. Continuous capacity: 2000W rated power can run 7*24hours with full load.