--- title: "Ginlong Solis S6-EO1P4K-48 Off-grid Inverter: Specs & Datasheet | ComparePV" description: "Ginlong Solis S6-EO1P4K-48 4 kW off-grid inverter. Specs: 1 MPPT, 500 V max DC input, 13.8 kg." source: "https://comparepv.com/inverter/ginlong-solis-s6-eo1p4k-48" updated: 2026-01-17 --- # Ginlong Solis S6-EO1P4K-48 ## Identity - **Manufacturer:** Ginlong Solis - **Model:** S6-EO1P4K-48 - **Series:** S6-EO1P - **Rated AC power:** 4 kW - **Type:** Off-grid - **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 | - | 97.2% | | | | MPPT trackers | 1 | 2 | Weak - bottom 7% | 222 | | Max DC input voltage | 500 V | 600 V | Weak - bottom 19% | 237 | | Weight per kW | 3.5 | 3.3 | Typical | 194 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 4 kW - **Max apparent power:** 4.00 kVA - **Phases:** Single-phase - **Nominal AC voltage:** 230 V - **Max AC current:** 20.0 A - **Grid frequency:** 50 Hz - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC input power:** 5.50 kW - **Max DC voltage:** 500 V - **MPPT voltage range:** 90 to 430 V - **Start-up voltage:** 90 V - **MPPT trackers:** 1 - **Max input current per MPPT:** 16.0 A - **Max short-circuit current per MPPT:** 40.0 A ### Efficiency - **Max efficiency:** 96.6 % ### Battery - **Battery port:** Yes - **Battery voltage:** 40 - 60 V - **Max charge current:** 100.0 A - **Max discharge current:** 100.0 A - **Grid-forming:** Yes ### Physical - **Dimensions:** 480 × 340 × 170 mm - **Weight:** 13.8 kg - **Enclosure:** IP21 - **Operating temperature:** -10 to 60 °C - **Max humidity:** 95 % - **Max altitude:** 2000 m - **Installation:** Indoor only ### Connectivity and protection - **Interfaces:** Wi-Fi, Bluetooth, Display - **Protocols:** CAN, BMS, Dry-contact, Bluetooth, Wi-Fi (optional) - **Protection:** AFCI, Surge protection ### Warranty and certificates - **Certifications:** IEC 62109, IEC 61000, 55011 ### Pros - **Capable of operating in parallel up to 6 units (36 kW)** - The series allows for the connection of up to 6 inverters in parallel, creating an island system with a power output of up to 36 kW - without the need for a separate master controller. This is a rare feature in this power range (4-5 kW per unit) and a key advantage for commercial installations or large farms operating off-grid. - **Can be overloaded to 200% for 10 seconds.** - The inverter can withstand temporary overloads of up to 200% of its rated power for 10 seconds, which allows for the smooth start of electric motors (pumps, compressors, saws). Most competitors in the low-voltage segment (e.g., Deye SUN-5K-SG01LP1) claim a tolerance of 110-150%. - **Battery management system (BMS) communication-free operation** - The device offers a mode of operation with batteries without active communication with the BMS (e.g., older LiFePO4 or AGM/gel batteries), with the ability to manually configure charging parameters. This eliminates the need to purchase batteries with their own protocol and reduces the overall system cost. - **Dual backup output - load separation** - Two independent off-grid power outputs allow for the intelligent separation of critical loads (e.g., refrigerator, lighting) from secondary loads. In the event of a low battery state of charge, the system can automatically disconnect less important circuits, thereby extending the operational autonomy of the installation. - **Tier 1 - BNEF ranking - 3rd largest inverter manufacturer globally** - Ginlong (Solis) has been listed on BloombergNEF's Tier 1 PV Inverter Manufacturers list for several consecutive quarters (most recently confirmed for Q1 2025), and is the 3rd largest global manufacturer of photovoltaic inverters. This translates to a realistic project bankability, availability of spare parts, and stable technical support over a 10-15-year period. ### Cons - **Warranty is only 2 years.** - The standard manufacturer warranty is 2 years, while companies like Deye, Victron Energy (MultiPlus-II), and Studer offer 5 years as standard. For off-grid installations, where the inverter is the sole power source for the property, a shorter warranty period significantly increases the potential costs of maintenance or the need to purchase an extended warranty at an additional cost. - **48 V low-voltage architecture - higher cable costs** - With a power of 5 kW, the DC current from the battery reaches approximately 100 A (5000 W / 48 V), which requires cables with a cross-section of ≥50 mm² and high-quality connectors. In comparison to high-voltage systems (e.g., 200-400 V DC), the material costs for the battery-to-inverter cabling can be 2-3 times higher, which should be factored into investment calculations. ## About this series The Ginlong Solis S6-EO1P series are single-phase grid storage inverters designed for **off-grid** operation, where full grid independence and reliable island mode power supply for homes or facilities are essential. What distinguishes them is their **flexible cooperation with an energy storage system** in a low-voltage architecture, along with the ability for rapid configuration even for batteries without communication, facilitating component selection in practical projects. The application of **2 MPPT** allows for better utilization of the yield from two independent module strings-such as in cases of different roof orientations or seasonal shading. High European efficiency translates to significantly better performance in typical climatic conditions in Poland, not just in laboratory settings. A major advantage is the **remote monitoring and diagnostics** via the platform and app, supporting popular communication methods (including WiFi and wired solutions). The series offers comprehensive safety features, complete with required safety and EMC certifications, and warranty conditions expected for home and small commercial installations. ## Questions ### Does the Solis S6-EO1P inverter function completely without an external power grid? Yes, the S6-EO1P series is specifically designed for off-grid operation, meaning it can function independently from the electrical grid. The inverter directly powers devices from both solar panels and a battery storage system, making it an ideal choice for vacation homes, farms located far from the grid, or any installation requiring complete energy independence. ### Which batteries are compatible with the Solis S6-EO1P, and is it necessary for the battery to have communication with the inverter? The S6-EO1P series supports both lithium-ion and lead-acid batteries in a low-voltage 48 V architecture. Importantly, the inverter can operate with batteries without communication (BMS), which significantly simplifies the selection of energy storage and reduces the overall system cost. There are 6 different battery charging modes available, allowing users to adapt the operation to the specific type of batteries. ### What are the available power options in the Solis S6-EO1P series, and for what size of house would they be sufficient? The S6-EO1P series is available in 4 kW and 5 kW versions (models S6-EO1P4K-48 and S6-EO1P5K-48). A power output of 4-5 kW is sufficient for a typical family home or vacation home with basic energy needs. With higher demand, it is possible to connect up to 6 units in parallel, achieving a total power output of up to 30 kW. ### Does the Solis S6-EO1P support two strings of panels installed at different angles? Yes, the inverter is equipped with 2 independent MPPT inputs, which allows you to connect two separate strings of modules with different orientations or inclines. This ensures that each string is independently tracked, minimizing losses due to partial shading or when installed on multi-pitched roofs. ### What is the warranty on the Solis S6-EO1P inverter, and is the manufacturer reputable? The standard manufacturer warranty is 2 years, and distributors often offer the option to extend it. Ginlong Solis is a manufacturer included in the Tier 1 global list, with a long-standing presence in the European market, which ensures stable service support and readily available spare parts. The company holds all the required safety and EMC certifications for the Polish market. ### How does the Solis S6-EO1P inverter's remote monitoring function, and is an additional gateway required? The S6-EO1P series enables remote monitoring of the installation's operation via the SolisCloud platform and a dedicated mobile application. Options include WiFi or wired (RS485) communication. Depending on the chosen option, an external communication gateway (data logger) may be required, but basic monitoring of operating parameters does not require advanced configuration. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/solis-datasheet-s6-eo1p-4-5-k-48-phl-v2-0-202410-c19e4f6c79f3.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Growatt SPF 4000T DVM](https://comparepv.com/inverter/growatt-spf-4000t-dvm) | 4 kW | | | 42.0 kg | 28.2 kg heavier | | [Growatt SPF 4000T DVM-MPV](https://comparepv.com/inverter/growatt-spf-4000t-dvm-mpv) | 4 kW | | | 42.0 kg | 28.2 kg heavier | | [Growatt SPF 4000TL HVM](https://comparepv.com/inverter/growatt-spf-4000tl-hvm) | 4 kW | | | 11.0 kg | 2.8 kg lighter | | [Easun Power ISolar SPL 5K](https://comparepv.com/inverter/easun-power-isolar-spl-5k) | 4 kW | | | 9.8 kg | 4.0 kg lighter | | [PowMr POW-HVM4.2M-24V-N](https://comparepv.com/inverter/powmr-pow-hvm4-2m-24v-n) | 4.2 kW | | | 9.5 kg | +0.2 kW, 4.3 kg lighter | | [Easun Power LSOLAR SML-II-3.6KW](https://comparepv.com/inverter/easun-power-lsolar-sml-ii-3-6kw) | 3.6 kW | | 1 | 11.0 kg | -0.4 kW, 2.8 kg lighter | | [Easun Power ISolar SMV IV 3600-24](https://comparepv.com/inverter/easun-power-isolar-smv-iv-3600-24) | 3.6 kW | | | 9.0 kg | -0.4 kW, 4.8 kg lighter | | [Easun Power ISolar SMG II 3.6KW](https://comparepv.com/inverter/easun-power-isolar-smg-ii-3-6kw) | 3.6 kW | | | 9.0 kg | -0.4 kW, 4.8 kg lighter | --- Source: https://comparepv.com/inverter/ginlong-solis-s6-eo1p4k-48