... , AC:190V-250V, efficiency: >92% CE & ROHS APPROVED, IP67 System Function¤ directly connected to the solar panels,Or directly connected ... and semi-100 Hz frequency alternating current generated combination, to achieve high- frequency modulation.¤ Pure Sine Wave Output SPWM ... uses high-precision MPPT computing power, automatic and immediate to solar panels output power adjustment in the maximum output ...