About this item 600VA/360W Capacity with Wide Voltage Range: Delivers stable backup power for devices like CCTV cameras, Wifi routers, and PCs, even in areas with voltage fluctuations (140 - 300 VAC). Fast Transfer and Simulated Sine Wave Technology: Ensures smooth transition to backup power with a quick 4-8 ms transfer time and simulated sine wave output, protecting sensitive electronics. High-Efficiency Battery System: Equipped with a 12V/7Ah battery, recharges to 90% in 4-6 hours, providing reliable, long-lasting power during outages. Compact and Lightweight Design: Easy to install and portable, with dimensions of 279 x 101 x 142mm and a weight of just 4.4 kg, making it ideal for both home and office use. Low Noise and Environment-Friendly Operation: Operates quietly at less than 40dB, and works effectively in various environments with 0-90% humidity and 0-40°C temperature range.