Looking for Answers about BPS 6000 Watt Back Up Power System, 8 AGM Batteries, Model# BPSXW6048?

This Backup Power Source renewable grid-tie power system is a versatile, turnkey system that is specifically designed to provide a flexible, expandable solution for backup power, grid interactive power or off-grid power for residential or business use. It provides up to 6000 Watts of continuous power that secures critical loads, including security systems, furnace fans, refrigeration, computers, sump pumps and more. System is expandable and can be stacked to provide 12,000 or 18,000 running Watts for large power needs. Grid-tie design allows unit to work both on- or off-grid and power can be sold back to a utility during peak periods. U.S.A. Requires a licensed electrician for wiring and installation; if connected to a gas line, a trained professional should make final connections. Running Watts: 6,000, Amps: 50, Surge Watts: 12,000, Power (Volts): 120/240, Run Time (hrs.): 48, Extended Run: Yes, Flex Standby: Yes, Battery Type: 105Ah AGM, Batteries (qty.): 8, Rechargeable Battery Bank: Yes, Alternative Power Collection: Yes, requires charge controller and wind turbine and/or solar panels, Automatic Switch Back: Yes, Hardwired: Yes, Modified Sine Wave: Pure sine wave, Allows Backfeeding of Power: Yes, Works With Gas Generator: Yes, Solar Power Compatible: Yes, Dimensions L x W x H (in.): 34 x 15.5 x 80, Electrician Required: Yes Works with alternative energy sources (solar, wind and hydroelectric) and/or external generators Includes eight 12V, 105Ah maintenance-free batteries Includes lockable UL listed enclosure