Clever 500W Input voltage: 175 - 265Vac Input frequency: 50Hz+ 5Hz Inversion voltage: 220Vac+ 2% DC voltage: 12Vdc Output waveform: Sine wave THD: < 3% Transfer time: < 4ms Automatic transfer Recharge current: Average charge current: 8A (350-500W); 10A (650-2000W). Max charge current: 10A (350-Max charge current: 10A (350-2000W). CPU controls automatic charge. Overload protection: Lock the machine automatically when overload over 100-120% for 25seconds; lock themachine automatically[...]