--- title: "Deye SUN-5K-SG04LP1-EU Hybrid Inverter: Specs & Datasheet | ComparePV" description: "Deye SUN-5K-SG04LP1-EU 5 kW hybrid inverter. Specs: 97.0% European efficiency, 2 MPPT, 500 V max DC input, 14.0 kg, 5 yrs warranty." source: "https://comparepv.com/inverter/deye-sun-5k-sg04lp1-eu" updated: 2026-01-17 --- # Deye SUN-5K-SG04LP1-EU ## Identity - **Manufacturer:** Deye - **Model:** SUN-5K-SG04LP1-EU - **Series:** SUN-K-SG04LP1-EU - **Rated AC power:** 5 kW - **Type:** Hybrid - **Phases:** Single-phase - **Battery port:** yes ## How it compares Compared against 362 inverters from 3 to 6 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 97.0% | 97.2% | Typical | 174 | | MPPT trackers | 2 | 2 | Typical | 13 | | Max DC input voltage | 500 V | 600 V | Weak - bottom 19% | 237 | | Weight per kW | 2.8 | 3.3 | Typical | 126 | | Warranty | 5 yrs | 5 yrs | Typical | 34 | ## Specification ### AC output - **Rated AC power:** 5 kW - **Max AC power:** 5.50 kW - **Phases:** Single-phase - **Nominal AC voltage:** 230 V - **Grid frequency:** 50 Hz - **Power factor:** 0.8 leading to 0.8 lagging - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC input power:** 6.50 kW - **Max DC voltage:** 500 V - **MPPT voltage range:** 150 to 425 V - **Start-up voltage:** 125 V - **MPPT trackers:** 2 - **Max input current per MPPT:** 13.0 A - **Max short-circuit current per MPPT:** 17.0 A ### Efficiency - **European efficiency:** 97.0 % - **Max efficiency:** 97.6 % ### Battery - **Battery port:** Yes - **Battery voltage:** 20–30 V (24V model) / 40–60 V (others) - **Max charge current:** 140.0 A - **Max discharge current:** 140.0 A - **Grid-forming:** Yes ### Physical - **Dimensions:** 433 × 330 × 248 mm - **Weight:** 14.0 kg - **Enclosure:** IP65 - **Cooling:** natural - **Noise:** 30 dB - **Operating temperature:** -45 to 60 °C ### Connectivity and protection - **Interfaces:** Display - **Protocols:** RS485, CAN - **Protection:** Surge protection ### Warranty and certificates - **Warranty:** 5 years - **Certifications:** CEI 0-21, VDE-AR-N 4105, NRS 097, IEC 62116, IEC 61727, G99, G98, VDE 0126-1-1, RD 1699, C10-11, IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2 ### Pros - **2 independent MPPT tracks** - Two separate MPPT inputs (each capable of handling up to 25A, as specified in the datasheet) allow for the independent operation of two separate solar panel strings with different orientations or tilt angles. In practice, this minimizes losses due to partial shading of one section, which is particularly important in Polish rooftop solar installations with irregular geometries. - **Maximum efficiency: 97.6%, MPPT efficiency: >99%** - The maximum DC/AC conversion efficiency is 97.6%, and the MPPT tracking efficiency exceeds 99% - figures that place the series among the best in the range of single-phase hybrid inverters of LV class. The high European efficiency (taking into account the load profile under partial shading) directly translates into a higher annual yield in the Polish climate. - **Handling of low-voltage (24V/48V) batteries** - The series natively supports LiFePO4, lithium-ion, and lead-acid batteries with 24V and 48V voltages, along with BMS communication. In contrast, many competing hybrid inverters often require expensive high-voltage storage (>100V). This significantly expands the selection of compatible and more affordable energy storage solutions available on the Polish market. - **PN-EN 50549 certificate and IP65 enclosure** - The series is certified to comply with the PN-EN 50549 standard, which is required by Polish distribution system operators (DSOs) when connecting to the distribution network. The IP65 enclosure allows for external mounting without additional protection, which simplifies design and reduces installation costs. - **Built-in Wi-Fi and Ethernet are included at no extra cost.** - The built-in WiFi and Ethernet communication module eliminates the need to purchase external loggers (such as those offered by Growatt or Sofar in certain models), enabling immediate remote monitoring and parameterization via the SolarmanPV app, as well as integration with energy management systems (e.g., Home Assistant via Modbus). ### Cons - **High temperature under full load** - Users on the DIY Solar Forum report radiator temperatures exceeding 76°C under full load and ambient temperatures below 30°C. In poorly ventilated locations (closed cabinets, south-facing sunlit walls), this can affect the lifespan of components and cause the thermostat to limit power. - **Lack of active output voltage regulation by EPS** - In emergency mode (EPS/UPS), the inverter passes the mains voltage directly to the load, without actively stabilizing it - this results in an output voltage range of 200-245V instead of the regulated nominal voltage. For sensitive devices (e.g., precision medical equipment, some appliances with electronic components), this may be a limitation that requires an additional stabilizer. ## About this series The Deye SUN-K-SG04LP1-EU series are **hybrid hybrid inverters** designed for use with PV systems, the grid, and energy storage installations, enabling easy increases in self-consumption and providing backup power for selected circuits. A major feature is **support for low-voltage batteries** (lithium and lead-acid types) with intelligent integration via BMS, simplifying compatible energy storage selection and ensuring stable operation of the entire system. The presence of a **2 MPPT system** is also advantageous-it allows independent management of two PV string circuits, which helps with various roof orientations and partial shading, improving energy yield in challenging conditions. The high European efficiency means better energy production in real-world operation, typical for Polish installations. Monitoring is convenient through communication (including WiFi and Ethernet) and an app, and the installer appreciates the clear display and outdoor-mounting enclosure. The series comes with required certifications for grid standards (including PN-EN 50549) and a standard warranty with an option for extension, making it suitable for both homes and small commercial premises. ## Questions ### Which batteries are compatible with the Deye SUN-K-SG04LP1-EU inverter? The SUN-K-SG04LP1-EU series supports low-voltage batteries in the range of 40-60 V, including lithium (such as popular LiFePO4) and lead-acid batteries. The inverter works with a BMS system, enabling intelligent management of charging and discharging. This allows you to connect most readily available residential-grade energy storage systems without voiding the battery manufacturer's warranty. ### What is the warranty period for the Deye SUN-K-SG04LP1-EU inverter? The standard manufacturer's warranty for the SUN-K-SG04LP1-EU series is 5 years. Deye offers the option to extend this warranty - depending on the distributor, protection can be extended up to 10 years (5 years from the manufacturer plus 5 years from the European distributor). It is advisable to inquire with the seller about the extended warranty options available in Poland before making a purchase. ### Will the Deye SUN-K-SG04LP1-EU inverter provide power during a grid outage (blackout)? Yes, the SUN-K-SG04LP1-EU series includes an EPS (Emergency Power Supply) feature, which automatically switches selected circuits in the home to battery power when the mains power is lost, provided that an energy storage system is connected. This switching occurs very quickly, allowing sensitive devices such as refrigerators or routers to continue operating without interruption. ### What advantages does the 2 MPPT system in the Deye SUN-K-SG04LP1-EU inverter offer, and when is it truly beneficial? Two independent MPPT (Maximum Power Point Tracking) systems allow you to connect two separate sets of panels that operate under different conditions - for example, one on a south-facing roof and another on an east-facing roof, or one partially shaded. Each set is tracked independently, so weaker panels do not reduce the overall output of the system. This is particularly important for roofs with a pitched or gabled design. ### Is the Deye SUN-K-SG04LP1-EU inverter suitable for outdoor mounting? Yes, the SUN-K-SG04LP1-EU series enclosure has an IP65 rating, which means it is completely protected against dust and offers protection against water jets. The inverter can operate at temperatures ranging from -40°C to +60°C, so it can easily withstand Polish winters and summer heat. Mounting on the exterior wall of a garage or shed is fully permissible. ### What is the efficiency of the Deye SUN-K-SG04LP1-EU inverter, and what does this mean for the PV system owner? The maximum conversion efficiency reaches 97.6%, while the European efficiency (calculated for a realistic solar profile in Europe) is approximately 96.5%. In practice, this means that you lose less than 4% of each kilowatt-hour generated by the panels due to heat loss within the inverter - which translates to real savings on your electricity bills throughout the year, particularly in spring and autumn when the variable solar exposure typical of Poland is experienced. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/Hybrid-Inverter-SUN-3-36-5-6-K-SG04LP1-EU-5209c001c9d8.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [SolarEdge StorEdge AC Coupled Single Phase Inverter (HD‑Wave) – SE5000H / H5000SE](https://comparepv.com/inverter/solaredge-storedge-ac-coupled-single-phase-inverter-hd-wave-se5000h-h5000se) | 5 kW | 99.0% | | 9.0 kg | +2.0 pp efficiency, 5.0 kg lighter | | [SolarEdge SE5000H](https://comparepv.com/inverter/solaredge-se5000h) | 5 kW | 99.0% | | 12.0 kg | +2.0 pp efficiency, 2.0 kg lighter | | [Huawei SUN2000L-5KTL](https://comparepv.com/inverter/huawei-sun2000l-5ktl) | 5 kW | 98.0% | 2 | 10.6 kg | +1.0 pp efficiency, 3.4 kg lighter | | [Growatt MOD 5000TL3-HU](https://comparepv.com/inverter/growatt-mod-5000tl3-hu) | 5 kW | 97.8% | 2 | 19.0 kg | +0.8 pp efficiency, 5.0 kg heavier | | [Huawei SUN2000-5KTL-L1](https://comparepv.com/inverter/huawei-sun2000-5ktl-l1) | 5 kW | 97.8% | 2 | 12.0 kg | +0.8 pp efficiency, 2.0 kg lighter | | [Ginlong Solis RHI-3P5K-HVES-5G](https://comparepv.com/inverter/ginlong-solis-rhi-3p5k-hves-5g) | 5 kW | 97.7% | 2 | 25.1 kg | +0.7 pp efficiency, 11.1 kg heavier | | [Growatt SPM 5000TL-HU](https://comparepv.com/inverter/growatt-spm-5000tl-hu) | 5 kW | 97.6% | 2 | 26.0 kg | +0.6 pp efficiency, 12.0 kg heavier | | [Growatt MOD 5000TL3-XH](https://comparepv.com/inverter/growatt-mod-5000tl3-xh) | 5 kW | 97.5% | 2 | 12.5 kg | +0.5 pp efficiency, 1.5 kg lighter | --- Source: https://comparepv.com/inverter/deye-sun-5k-sg04lp1-eu