What It Can Power
Computers & Office: 1 desktop PC or multiple laptops, Wi-Fi routers, and fiber modems.
Home Entertainment: A small LED television and a decoder.
Lighting & Fans: 2 to 3 ceiling or standing fans and low-wattage LED bulbs (best suited for pure sine wave inverter models rather than basic PC UPS units)..
Key Specifications (Mercury Maverick 850VA Example)Capacity: 850VA / 510WInput Voltage Range: 140V – 300V AC (handles low public grid voltage well)Battery: 12V / 7Ah or 9Ah internal battery (for UPS)Waveform: Simulated sine wave (UPS mode) or Pure sine wave (select solar/hybrid inverter models)