RiiO Sun II is a versatile transformer-based hybrid inverter for backup and off-grid applications. It combines a pure sine wave inverter, battery charger, MPPT solar controller, and a fast 4ms transfer switch.

Built to handle high surge loads, it ensures continuous operation of critical loads during outages. It also maximizes self-consumption, supports grid feed-in, and lowers energy costs through peak shaving and time-of-use optimization.