MAXGREEN MG-L1-REP-850VA OFFLINE UPS in Bangladesh

MAXGREEN MG-L1-REP-850VA Offline UPS Capacity 850VA/480W. Input Voltage 220Vac. Input Voltage Range 140-290VAC. Frequency Range 50 Hz. Output Voltage 220Vac. AC Voltage Regulation ?10% (Bat Mode). Frequency Range 50Hz ? 1Hz (Bat Mode). Transfer time Typical 2-6ms. Waveform Simulated Sine Wave (Bat Mode). Battery Internal maintenance-free lead-acid. Battery Type & Number 12V/9Ah*1. Net Weight (kg) 4.2 4.6. Dimension,D*W*H(mm) 297X101X142. Typical Recharge Time 4-6 hours recover to 90% capacity. Full protection Short circuit, Overload, Battery discharge, and overcharge, Surge protection. Humidity 0-90% Relative Humidity 0-40 ? (Non-condensing). Noise Level Less than 40dB. Optional USB/RS232 Port Supports Windows 2000/2003/XP/Vista/2008, Windows 7/8 Linux Unix, and MAC.