-The only portable power station certified to both UL1973 and UL9540, offering extreme reliability for home use. -7.2-21.6kW output, powerful enough to run your whole home even with a central AC -6kWh-90kWh capacity, whole house backup for weeks with comfort -Auto-switchover, prolonged backup, and energy bill savings with EcoFlow Smart Home Panel 2 -5 Charging Options, even plan B has a plan B-Battery automatically starts self-heating if the temperature is lower than 32, allowing the battery to run as normal *Note: The DELTA Pro Ultra Inverter package does not include a connection cable . To connect a second inverter to SHP2, please purchase the connection cable separately. Smart Home Panel 2 requires installation before use, and the specific fee will depend on the assessment, and only &';EcoFlow DELTA Pro Ultra + Smart Home Panel 2 + Installation&'; includes installation services.