The greatest off-grid inverter available is the Skycorp Solar Helios III (H3)

All-in-one off-grid inverter from the Helios III(H3) series, without battery. For simplicity and adaptability, the MPPT solar charge controller, AC charger, and pure sine wave inverter are all built-in. In terms of off-grid solar systems, it is the finest option.

Off-grid inverters from the Helios III(H3) series are affordable and come in 24Vdc/3.5Kw and 48Vdc/5.5Kw models. supports operation without batteries. The integrated MPPT solar charge controller enables solar panel inputs between 120 and 450 volts, an open circuit voltage of 500 volts, a maximum input power of 5500 watts, and charging currents up to 100 amps. The remaining portion can be fed straight to the load. The primary inverter shares a transformer with the AC charging component, which uses the most recent bi-directional charging technology and can provide a charging current of up to 80Amp. While 48Vdc/5.5Kw supports up to 4000Watt of AC charging, 24Vdc/3.5Kw only supports up to 2000W. Pure sine wave AC output of 3.5Kw/5.5Kw is suited for all types of loads, including compressors, motors, air conditioners, and refrigerators.
Double peak power makes it support more ability to carry load. It is the best choice for solar system in home/RV/yacht/office, etc.

Battery-free operation function makes solar system less costly to build. Use solar panel to supply power directly to the load in good light conditions to complement utility power. Use RS232/RS485 to manage with BMS of lithium battery through Modbus or CAN communication protocol to make the system run more stable and to protect the lithium battery safely to make its life longer. Support WIFI or 4G to realize cell phone APP to monitor the system.

Helios III(H3) series off-grid inverter makes you set up off-grid solar system with lower cost, powerful and stable. It is your best off-grid inverter choice.