The Universal 10/4 is the smallest home (https://humless.com/home-battery-backup-systems/) battery backup power source in our Universal line. This unit is perfect for small homes and essential loads. This home solar battery system features 10 kWh’s of lithium (LiFePO4) battery storage, 3.4 kW (4 kVa) premium inverter, remote monitoring, and is stackable up to 2 units. This system is an excellent power backup for home essential loads like lights, freezer, refrigerator, and outlets. For more information about Humless Reliable Power Systems visit our website.