--- title: "Selfa SV120M.5.0-330 Solar Panel: Specs & Datasheet | ComparePV" description: "Selfa SV120M.5.0-330 solar panel. Specs: 19.60% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/selfa-sv120m-5-0-330" image: "https://comparepv.com/og/panel/selfa-sv120m-5-0-330.png" updated: 2026-09-11 --- # Selfa SV120M.5.0-330 Light for its output, no clear weak spot 291 panels in the segment PERC 300-350 W ## Identity - **Manufacturer:** Selfa - **Model:** SV120M.5.0-330 - **Series:** SV120M.5.0 - **Rated power:** 330 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 300-350 W (291 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 330 W | 325 W | Typical | | | Module efficiency | 19.60% | 19.00% | Typical | 12,677 | | Power density | 196.0 | 190.0 | Typical | 12,677 | | Temperature coefficient | -0.370 | -0.360 | Typical | 13,161 | | Weight (kg) | 18.8 kg | 19.0 kg | Strong - top 24% | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.60% | 19.00% | Typical | 12,677 | | Power density | 196.0 | 190.0 | Typical | 12,677 | | Temperature coefficient | -0.370 | -0.360 | Typical | 13,161 | | Weight per kWp | 57.0 | 60.3 | Strong - top 24% | 11,049 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Strengths - **57.0 kg per kWp** - Top 24% of the PERC 300-350 W segment, against a median of 60.3. - **Best for:** Residential and commercial. ## Specification ### Electrical - **Rated power (Pmax):** 330 W - **Efficiency:** 19.60 % - **Voltage at Pmax (Vmp):** 34.70 V - **Current at Pmax (Imp):** 9.52 A - **Open-circuit voltage (Voc):** 40.70 V - **Short-circuit current (Isc):** 10.13 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.370 %/degC - **Temperature coefficient of Voc:** -0.340 %/degC - **Temperature coefficient of Isc:** 0.060 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 120 ### Physical - **Length:** 1680 mm - **Width:** 1002 mm - **Thickness:** 35 mm - **Weight:** 18.8 kg - **Area:** 1.68 m2 - **Power density:** 196.0 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 83.0 % - **First-year degradation:** 3.00 % - **Annual degradation:** 0.22 % - **Output after 30 years:** 299 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12677 of 14129 | | Power density | 12677 of 14129 | | Temperature coefficient | 13161 of 14129 | | Weight | 11049 of 14129 | | Warranty | 9912 of 14129 | ## About this series The SV120M.5.0 series consists of monocrystalline PREMIUM modules engineered for installations expected to perform reliably for decades under variable Polish weather conditions. The panels combine **half-cut cell technology** with PERC cells and a **5-busbar** layout, reducing power losses and improving resistance to microcracks and partial shading. The SELF-C self-cleaning surface sheds dirt and water more effectively, helping the module maintain higher yield with less frequent maintenance. The construction is **PID free**, protecting against potential-induced degradation, and the reinforced frame delivers strong mechanical resistance to wind, snow, and hail loads - a key factor for both rooftop and ground-mounted installations exposed to harsh conditions. The manufacturer guarantees **positive power tolerance only**, eliminating the risk of underdelivering against datasheet specifications. This makes the series a solid choice for investors and installers seeking a proven, Polish-made premium product backed by a nationwide service network and a long-term power warranty, which translates into a real reduction in LCOE over the system's lifetime. ## Notable figures - Efficiency of 19.6% matches the \*\*PERC 0-400W\*\* median - At 196.0 W/m² power density, roof space requirements are typical for \*\*PERC 0-400W\*\* panels - Temperature coefficient of -0.37%/°C matches the \*\*PERC 0-400W\*\* median - At 18.8 kg, this panel is 1.7 kg lighter than \*\*PERC 0-400W\*\* median (20.5 kg) - easier handling during installation - #12677 for efficiency, #13161 for temperature performance out of 14129 panels ## Questions ### Is the Selfa SV120M.5.0-330 panel still available for purchase? No, the SV120M.5.0-330 series has been discontinued and replaced by newer, higher-power Selfa models. Some units may still be found at distributors as leftover stock, but availability is limited. The manufacturer's warranty (12 years product, 25 years power) remains valid for panels already purchased and installed, regardless of the series being discontinued. ### What warranty does the Selfa SV120M.5.0 come with and what does it cover? The manufacturer provides a 12-year product warranty against material and workmanship defects, plus a 25-year power output warranty. Additionally, Selfa guarantees a positive-only power tolerance (0/+5W), so the purchased panel never underperforms its rated datasheet output. This is a key advantage when comparing offers, as it eliminates the risk of an underperforming installation. ### How does the half-cut technology with 5 busbars in the SV120M.5.0 differ from standard PERC panels? Half-cut means standard cells are split in half, reducing current losses and improving shading tolerance from obstacles like chimneys or antennas. Combined with 5 busbars (instead of the typical 3-4), current has more paths to flow through, lowering resistance and increasing resistance to microcracks. The result is higher efficiency (19.6%) and lower power degradation over time compared to older cell designs. ### Can SV120M.5.0 panels withstand strong wind, snow, and hail on a roof? Yes, the module features a reinforced anodized aluminum frame and 3.2mm tempered glass, providing the mechanical durability needed for demanding roof and ground-mount conditions typical in Poland. The construction meets snow and wind load standards expected of premium-class modules, making it suitable for both sloped roofs and free-standing installations exposed to variable weather. ### What is PID-free technology and why does it matter when choosing solar panels? PID (Potential Induced Degradation) is a power loss effect caused by a voltage difference between the cells and the frame, especially in high-system-voltage installations. SV120M.5.0 panels are designed to be PID-free, protecting them from this degradation and maintaining stable performance throughout their service life. This matters most in large series-connected arrays where string voltage can be high. ### Does the SELF-C surface really reduce the need to clean the SV120M.5.0 panels? SELF-C is a special glass surface coating that helps water run off along with accumulated dirt and dust, creating a self-cleaning effect. In practice this reduces how often manual cleaning is needed, especially when panels are tilted to allow natural rainwater runoff. However, in very dusty environments (e.g., farmland or unpaved roads), periodic cleaning is still recommended to maintain peak output. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/288-7613d0b69132.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-300MH-72](https://comparepv.com/panel/ja-solar-ns-300mh-72) | 300 W | Cooler, lighter, +3.7 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | Cooler, lighter, +3.7 pp | | [Heckert Solar ZEUS 1.2 FullBlack 280W](https://comparepv.com/panel/heckert-solar-zeus-1-2-fullblack-280w) | 280 W | -50 W, cooler, +3.7 pp | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, lighter, +3.5 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +3.5 pp | | [Heckert Solar ZEUS 3.2 285WP FullBlack](https://comparepv.com/panel/heckert-solar-zeus-3-2-285wp-fullblack) | 285 W | Cooler, +3.5 pp, +5 yr warranty | | [Gamko New Energy GKA182M285W](https://comparepv.com/panel/gamko-new-energy-gka182m285w) | 285 W | Lighter, +3.4 pp, +5 yr warranty | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | -30 W, +3.4 pp, +5 yr warranty | | [Gamko New Energy GKA210M320W](https://comparepv.com/panel/gamko-new-energy-gka210m320w) | 320 W | Lighter, +3.4 pp, +5 yr warranty | | [Selfa SV60M.2.1-315](https://comparepv.com/panel/selfa-sv60m-2-1-315) | 315 W | -15 W, -0.8 pp | | [Selfa SV120M.5(3)-315](https://comparepv.com/panel/selfa-sv120m-5-3-315) | 315 W | -15 W, hotter, -0.6 pp | | [Selfa SV60M.2.1-320](https://comparepv.com/panel/selfa-sv60m-2-1-320) | 320 W | -10 W, -0.5 pp | | [Selfa SV120M.2-320](https://comparepv.com/panel/tcl-zhonghuan-sv120m-2-320) | 320 W | -10 W, -0.5 pp | | [Selfa SV120M.5(3)-320](https://comparepv.com/panel/selfa-sv120m-5-3-320) | 320 W | -10 W, hotter, -0.3 pp | | [Selfa SV60M.2.1-325](https://comparepv.com/panel/selfa-sv60m-2-1-325) | 325 W | -0.2 pp | | [Selfa SV120M.5(3)-330](https://comparepv.com/panel/selfa-sv120m-5-3-330) | 330 W | Very close match | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | +110 W, cooler, +3.3 pp | --- Source: https://comparepv.com/panel/selfa-sv120m-5-0-330 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.