... .pure sine wave Power inverter 2.CPU Control 3.MOQ:50PCS Specification: 1. Advanced Dual-CPU MCU intelligent control technology, with ... protection, output short circuit protection, input over low voltage protection and input overvoltage protection), enhance its reliability. ... Power500WSurge Power1000WWaveformSine WaveFrequency50Hz or 60HzAC Regulation3%ProtectionLow Voltage Alarm10DC±0.5V or 20.5DC±1V ...