Your photo shows a complete Ecolion solar power system consisting of a hybrid inverter and a lithium battery.
Top unit: Hybrid Solar Inverter
Brand: Ecolion
Model/Rating: Sun Solar Inverter 6.2KW
Built-in display screen and control buttons
Designed to manage power from solar panels, batteries, and utility/generator input
Bottom unit: Lithium Battery
Brand: Ecolion
Type: LiFePO4 (Lithium Iron Phosphate) Battery
Voltage: 51.2V
Capacity: 176Ah
Approximate energy storage: 9kWh
This setup is suitable for powering household and small-business appliances, depending on the total load and available solar panels.