--- title: "Selfa SV108M.2.4-440 440W Solar Panel - Specs & Review | ComparePV" description: "Selfa SV108M.2.4-440 440W solar panel. Specs: 22.00% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/selfa-sv108m-2-4-440" updated: 2026-09-11 --- # Selfa SV108M.2.4-440 Middle of its segment, weak in heat 321 panels in the segment N-type 400-450 W ## Identity - **Manufacturer:** Selfa - **Model:** SV108M.2.4-440 - **Series:** PREMIUM FULL BLACK - **Rated power:** 440 W - **Cell technology:** N-type ## How it compares Compared against segment N-type 400-450 W (321 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 440 W | 430 W | Strong - top 23% | | | Module efficiency | 22.00% | 21.91% | Typical | 6,517 | | Power density | 217.7 | 218.3 | Typical | 7,065 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 25% | 6,093 | | Weight (kg) | 22.0 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.00% | 21.91% | Typical | 6,517 | | Power density | 217.7 | 218.3 | Typical | 7,065 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 25% | 6,093 | | Weight per kWp | 50.0 | 51.2 | Typical | 3,317 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **-0.300 %/°C temperature coefficient** - Bottom 25% of the N-type 400-450 W segment, against a median of -0.290. - **Best for:** Residential, shaded-installations and cold-climate. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 440 W - **Efficiency:** 22.00 % - **Voltage at Pmax (Vmp):** 32.84 V - **Current at Pmax (Imp):** 13.40 A - **Open-circuit voltage (Voc):** 39.40 V - **Short-circuit current (Isc):** 13.95 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 108 ### Physical - **Length:** 1782 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 22.0 kg - **Area:** 2.02 m2 - **Power density:** 217.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 20 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.0 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.41 % - **Output after 30 years:** 383 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 6517 of 14005 | | Power density | 7065 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 3317 of 14005 | | Warranty | 21 of 14005 | ## About this series Selfa PREMIUM FULL BLACK panels are the answer to the needs of investors seeking a balance between uncompromising aesthetics and maximum durability in Polish climatic conditions. The use of **Half-Cut technology** and multi-busbar monocrystalline cells significantly reduces energy losses resulting from internal resistance, which translates into more stable operation of the entire installation on hot days. These modules are distinguished by their exceptional resistance to potential-induced degradation and the LID phenomenon, guaranteeing high efficiency over decades of use. For the user, this means the certainty of a quick return on investment and a lower risk of micro-cracks thanks to the **optimized frame design**. This series is dedicated particularly to modern single-family housing, where the deep black of the modules and the elegant appearance of the roof play a key role. Unlike mass-imported products, this series undergoes **triple quality control** directly on the domestic production line, eliminating the risk of hidden manufacturing defects. Thanks to the **self-cleaning coating** and reinforced tempered glass, these panels perform perfectly in conditions of increased dust and under extreme snow loads. It is the ideal solution for those choosing **local technical support** and long-term energy security without any aesthetic compromises. ## Notable figures - At 22.0% efficiency, this panel is on par with typical \*\*N-type 400-450W\*\* modules - Power density of 217.7 W/m² matches the \*\*N-type 400-450W\*\* median - Temperature coefficient of -0.30%/°C matches the \*\*N-type 400-450W\*\* median - #6517 for efficiency, #6093 for temperature performance out of 14005 panels ## Questions ### What does N-type cell technology in the Selfa PREMIUM FULL BLACK series offer, and is the premium worth it? N-type cells are significantly more resistant to LID (Light Induced Degradation) than standard P-type PERC cells. In the PREMIUM FULL BLACK series this means a smaller power drop during the first years of operation and more stable generation throughout the entire 30-year power warranty period. For a 440 Wp module, this translates into measurably more kWh produced over the system's full lifetime — accelerating the return on investment. ### What is the warranty on Selfa PREMIUM FULL BLACK panels and when does coverage start? The PREMIUM FULL BLACK series carries a 20-year product warranty covering physical defects and a 30-year power output warranty. One important practical note: Selfa counts the warranty from the production date, not the purchase date. Before buying, it is worth checking the production date label on the module to confirm how much of the warranty period actually remains. ### Can Selfa PREMIUM FULL BLACK panels handle Polish winters and heavy snow loads? Yes, the PREMIUM FULL BLACK series is designed for the harsh climate conditions typical of Poland. The reinforced tempered glass and optimized frame construction provide high resistance to snow loads. Half-cut multi-busbar monocrystalline cells additionally reduce losses from partial shading — for example from snow accumulated along the bottom edge of a module. ### How do Selfa PREMIUM FULL BLACK panels differ from mass-imported products? The key difference lies in manufacturing location and quality control. Selfa produces modules in Szczecin, Poland, applying triple quality control directly on the domestic production line, eliminating the risk of hidden factory defects. With over 80 years of company history and an authorized service network across Poland, real local technical support is available — without waiting weeks for a response from an overseas manufacturer. ### What is the maximum power of the Selfa PREMIUM FULL BLACK module and how should it be matched to an inverter? The maximum power of a single module in the PREMIUM FULL BLACK series is 440 Wp. When sizing an inverter, check the MPPT voltage range — a typical string of 10 modules at 440 Wp will reach approximately 400–420 V depending on temperature, which is compatible with most standard grid-tied and hybrid inverters available on the Polish market. ### How does the self-cleaning coating on Selfa PREMIUM FULL BLACK panels work, and does it eliminate manual washing? Selfa's SELF-C self-cleaning coating reduces dust and contaminant adhesion to the glass surface — most deposits are removed automatically by rainfall and UV exposure. In typical Polish conditions, panels with this coating require manual cleaning far less frequently than standard modules, reducing O&M costs across the full 30-year operating life of the installation. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/530-e0eb58a9f9ca.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +50 W, cooler, +2.5 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +50 W, cooler, +2.5 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +45 W, cooler, +2.3 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +45 W, cooler, +2.3 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +45 W, cooler, +2.3 pp | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | +45 W, cooler, +2.3 pp | | [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | +45 W, cooler, +2.3 pp | | [Selfa SV108M.2.4-430](https://comparepv.com/panel/selfa-sv108m-2-4-430) | 430 W | -10 W, -0.5 pp | | [Selfa SV108M.2.4-450](https://comparepv.com/panel/selfa-sv108m-2-4-450) | 450 W | +10 W, heavier, +0.5 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +70 W, cooler, +3.0 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +55 W, cooler, +2.8 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +65 W, cooler, +2.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +60 W, cooler, +2.5 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +60 W, cooler, +2.5 pp | --- Source: https://comparepv.com/panel/selfa-sv108m-2-4-440 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.