Factory direct selling Pure sine wave inverter DC: 24-48V , AC:190V-250V, efficiency: >92% CE & ROHS APPROVED, IP67 System Function¤ ... phase shift rate of only <1%,thus achieving high precision AC and combining with the phase modulated output.¤ Synchronous High-frequency ... ,with the switch to the two AC fusion)and the product is first rectified AC half-frequency AC to 100Hz, then the machine ...