This is a TTNergy solar inverter / hybrid power inverter designed for solar-energy and backup-power systems.
Key features visible
Brand: TTNergy
Type: Wall-mounted hybrid solar inverter
Display: Front LCD screen for monitoring system status
Control panel: Buttons for operating and configuring the inverter
Mounting: Built-in wall-mounting bracket
Applications: Homes, shops, offices, and other installations requiring solar power and backup electricity
Functions: Typically used to manage power from solar panels, batteries, and the electrical grid, while supplying power to connected loads.