The Deye SUN Microinverter series are grid-tie microinverters designed for operation at the single module or pair module level, enabling more energy to be extracted from rooftop installations under real-world conditions. Their key advantage is multi-channel MPPT optimization - depending on the variant, you will find systems with two or even four trackers, which helps with partial shading, mixed azimuths, and different panel tilt angles. High European efficiency means the device maintains good performance not only at peak but also under typical, variable loads in Poland's climate. Module-level monitoring with WiFi communication is also a plus, simplifying diagnostics and quick detection of yield drops. The housing with enhanced environmental resistance and built-in safety features increases operational safety, while the standard manufacturer's warranty provides predictable costs. This is a good choice for residential and small commercial installations, especially where rooftop conditions are demanding.
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Specifications
Pros and cons
The G4 series models (SUN-M130 to SUN-M220G4-EU-Q0) are equipped with 4 independent MPPT trackers with an efficiency >99%, supporting up to 4 x 210-700W panels per microinverter. This provides a real advantage over competitors like Hoymiles HM-800 and APsystems DS3, which typically offer only 2 MPPT, especially in situations with partial shading and mixed orientations.
The G4 series achieves peak efficiency of 96.5% and meets the European standard of 96%, with an IP67 enclosure and operating range from -40°C to +65°C. These parameters are comparable to those of market leaders and are well-suited to the variable climatic conditions in Poland (low irradiance in winter, high temperatures in summer).
The built-in quick-off function discharges the DC voltage in less than 100 ms, meeting the requirements of DIN VDE V 0126-95 by a significant margin (<200 ms). This is a crucial fire safety feature required by many distributors and insurance companies in Poland.
The built-in Wi-Fi communication allows for the individual tracking of the production of each panel via a mobile app. This feature is standard and does not require an additional communication gateway, unlike some Enphase IQ8 models, where the Envoy gateway is an additional cost.
The series includes models ranging from SUN-M30G4 (30 W, balcony installations) to SUN-M200G4 (2000 W, 4 panels of 500 W+), allowing you to choose a microinverter that is compatible with your existing installation without the need to change the supplier or monitoring system.
The standard warranty for the G4 series is 10 years (designed lifespan of 25 years). Hoymiles offers a standard 12-year warranty with the option to extend it to 25 years, and APsystems has offered a standard 25-year warranty on the DS3 and QT2 series since February 2025. This represents a specific difference in risk coverage for investors with a 20-25 year investment horizon.
The declared European efficiency of approximately 96% is comparable to the market average, however, Hoymiles claims >97% for its HMS series, which, when installed at 10 kWp, could translate into a difference of approximately 50-80 kWh/year in energy yield. This difference is small, but measurable over a longer period.
Alternatives
About the SUN Microinverter series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.