EcoFlow - Delta Pro Ultra Inverter - Silver
About this product
The EcoFlow DELTA Pro Ultra Inverter is a high-capacity home energy solution designed to support a wide range of power needs. With scalable output and flexible installation options, it integrates into various energy systems, whether for backup, off-grid use, or daily home energy management. Its expandable design allows for increased output and solar input when paired with additional inverters and batteries. The inverter must be used with at least one battery compatible with the DELTA Pro Ultra; it cannot be used on its own. Built-in online UPS functionality provides uninterrupted power for sensitive electronics, while the advanced cooling system supports stable, quiet operation over time. The DELTA Pro Ultra Inverter offers a reliable way to manage residential energy with control and adaptability.
Features
7.2kW-21.6kW output with up to 3 inverters
With a 7.2kW output (Needed to work with the Delta Pro Ultra Extra Battery), EcoFlow DELTA Pro Ultra effortlessly runs even energy-hungry household items, like a 3-ton central air conditioner. For more power, pair 3 inverters with the EcoFlow Smart Home Panel 2 to unlock a 21.6kW AC output. Plus, with X-Fusion you'll get a constant 7200W output no matter what.
5.6kW-16.8kW solar input with up to 3 inverters
By leveraging High and Low-PV technologies, a single inverter sets new portable solar input standards with a 5.6kW input. Connect three inverters for a monumental 16.8kW, gaining a full day's home energy in 60 minutes. Whether you prefer a portable setup or a rooftop solar system, you can achieve true energy independence.
Online UPS, 0-ms transfer time
With EcoFlow DELTA Pro Ultra's online UPS, you'll get just that. With uninterrupted power flow, EcoFlow DELTA Pro Ultra safeguards your vulnerable electronic equipment round-the-clock.
Prolonged lifespan with a proprietary cooling structure
EcoFlow’s DPU features advanced X-Cooling technology, engineered with high-efficiency heat pipes, intelligent silent fans, and a custom aluminum heatsink. This system keeps the DPU running at optimal temperatures even under heavy loads, ensuring longer lifespan, stable performance, and whisper-quiet operation—all within a compact form factor.
Specifications
- BrandEcoFlowModel NumberEFDeltaProUltra-USProduct NameDelta Pro Ultra InverterColorSilverAmperage50 amperesVoltage120 volts
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The EcoFlow DELTA Pro Ultra Inverter is a high-capacity home energy solution designed to support a wide range of power needs. With scalable output and flexible installation options, it integrates into various energy systems, whether for backup, off-grid use, or daily home energy management. Its expandable design allows for increased output and solar input when paired with additional inverters and batteries. The inverter must be used with at least one battery compatible with the DELTA Pro Ultra; it cannot be used on its own. Built-in online UPS functionality provides uninterrupted power for sensitive electronics, while the advanced cooling system supports stable, quiet operation over time. The DELTA Pro Ultra Inverter offers a reliable way to manage residential energy with control and adaptability.

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