highly optimized. Input and output circuits are isolated.7. Strong loading capacity with a true onetime soft start.8. New and original electronic components.9. Internal circuit lines and signal lines are based on plug-pull blocks, not welding.FAQ:Q1: Does your company also provide other solar products except Pure Sine Wave inverter?A1: Yes, We also provide other solar products, Like MPPT solar controller, poly solar panel, off-grid solar inverter, ongrid solar inverter, solar battery. portable