--- title: "SunLink LNSF-340P 340W Solar Panel - Specs & Review | ComparePV" description: "SunLink LNSF-340P 340W solar panel. Specs: 17.15% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunlink-lnsf-340p" updated: 2026-09-11 --- # SunLink LNSF-340P Middle of its segment, needs the roof space 286 panels in the segment PERC 300-350 W ## Identity - **Manufacturer:** SunLink - **Model:** LNSF-340P - **Series:** LUXMAX Plus - **Rated power:** 340 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 300-350 W (286 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 340 W | 325 W | Strong - top 13% | | | Module efficiency | 17.15% | 19.00% | Weak - bottom 20% | 13,423 | | Power density | 171.5 | 190.0 | Weak - bottom 20% | 13,420 | | Temperature coefficient | -0.360 | -0.360 | Typical | 12,345 | | Weight (kg) | 23.5 kg | 19.0 kg | Weak - bottom 20% | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 17.15% | 19.00% | Weak - bottom 20% | 13,423 | | Power density | 171.5 | 190.0 | Weak - bottom 20% | 13,420 | | Temperature coefficient | -0.360 | -0.360 | Typical | 12,345 | | Weight per kWp | 69.1 | 60.0 | Weak - bottom 20% | 13,365 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Watch out for - **171.5 watts per square metre** - Bottom 20% of the PERC 300-350 W segment, against a median of 190.0. - **17.15% module efficiency** - Bottom 20% of the PERC 300-350 W segment, against a median of 19.00%. - **69.1 kg per kWp** - Bottom 20% of the PERC 300-350 W segment, against a median of 60.0. - **Not ideal for:** Roofs where every square metre has to count, tight roof space and weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 340 W - **Efficiency:** 17.15 % - **Voltage at Pmax (Vmp):** 37.78 V - **Current at Pmax (Imp):** 9.00 A - **Open-circuit voltage (Voc):** 46.42 V - **Short-circuit current (Isc):** 9.50 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/degC - **Temperature coefficient of Voc:** -0.290 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 72 ### Physical - **Length:** 1979 mm - **Width:** 1002 mm - **Thickness:** 40 mm - **Weight:** 23.5 kg - **Area:** 1.98 m2 - **Power density:** 171.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 10 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 80.7 % - **First-year degradation:** 3.00 % - **Annual degradation:** 0.68 % - **Output after 30 years:** 263 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13423 of 14005 | | Power density | 13420 of 14005 | | Temperature coefficient | 12345 of 14005 | | Weight | 13365 of 14005 | | Warranty | 9798 of 14005 | ## About this series SunLink LUXMAX Plus series panels redefine performance standards through the use of **N-type TOPCon cell technology**, which minimizes energy loss and ensures significantly slower degradation compared to traditional solutions. This solution effectively eliminates concerns about long-term power drop, offering energy stability for decades. A key differentiator is **excellent performance in diffused light**, which allows the installation to work efficiently even on cloudy days, typical of the Polish climate zone. This series is designed for demanding commercial projects and prosumers who prioritize **high power density** on limited roof space. Thanks to low internal impedance and optimized design, these modules generate lower heat losses, resulting in an **exceptional temperature coefficient** and higher yields in summer. They are distinguished from competing products by rigorous quality control and a reinforced construction that protects against micro-cracks and the harmful effects of external factors. By choosing LUXMAX Plus, investors receive premium-segment technology that maximizes the profitability of the photovoltaic system while maintaining the highest standards of mechanical safety. ## Notable figures - Module efficiency of 17.1% is 2.3pp below average for \*\*PERC 0-400W\*\* panels (median: 19.4%) - 171.5 W/m² power density is 22.9 W/m² below \*\*PERC 0-400W\*\* median (194.4 W/m²) - requires larger installation area - At -0.36%/°C, hot weather performance is typical for \*\*PERC 0-400W\*\* panels - At 23.5 kg (3.0 kg above \*\*PERC 0-400W\*\* median of 20.5 kg), requires checking roof load capacity - #13423 for efficiency, #12345 for temperature performance out of 14005 panels ## Questions ### What warranty does the SunLink LUXMAX Plus come with? SunLink LUXMAX Plus panels carry a 10-year product warranty covering material and workmanship defects, along with a 25-year linear power output warranty. The power warranty guarantees that after 25 years of operation the modules will retain the required percentage of their rated output. Always review the manufacturer's full warranty terms, including the claims procedure, before purchasing. ### Do SunLink LUXMAX Plus panels perform well on overcast days typical of the Polish climate? Yes. The LUXMAX Plus series is engineered for low-irradiance conditions. PERC cell technology improves the absorption of diffuse light through a rear-side passivation layer that reflects unused photons back into the p-n junction. The system operates efficiently even under heavy cloud cover, which is particularly relevant in Poland where fully sunny days are relatively rare. ### How does PERC technology in the LUXMAX Plus differ from standard solar cells? PERC (Passivated Emitter and Rear Cell) cells feature an additional passivation layer on the rear side that reflects unconverted photons back into the junction, reducing recombination losses compared to conventional BSF cells. This translates into higher conversion efficiency and greater energy yield per square meter. In the LUXMAX Plus series, PERC is paired with a reinforced mechanical design to minimize micro-crack risk. ### Are SunLink LUXMAX Plus 400 W panels bifacial? No, the LUXMAX Plus series consists of monofacial modules — they are not bifacial. Energy is harvested exclusively from the front side of the panel. This is perfectly adequate for standard rooftop installations, both pitched and flat, where albedo reflection from the surface below is not a significant contributor to overall yield. ### What type of installations are SunLink LUXMAX Plus 400 W modules designed for? The LUXMAX Plus 400 W series targets demanding commercial projects and prosumers who need high power density on limited roof space. At 400 Wp per module, installers can maximize energy output without placing a large number of panels, which is especially valuable on irregularly shaped roofs or where usable area is restricted. ### Is SunLink a Tier 1 manufacturer, and does it matter when choosing the LUXMAX Plus series? SunLink is not currently listed as a Tier 1 manufacturer according to Bloomberg NEF classification. This does not automatically imply lower module quality — the LUXMAX Plus series features a reinforced frame and strict quality control. However, it is worth considering when arranging project financing or insurance, as some lenders and insurers require Tier 1 status as a condition of approval. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/g1-series-72-cells-dbc2954f3e4f.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, +6.2 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | Cooler, lighter, +6.2 pp | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, lighter, +6.0 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +6.0 pp | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | Lighter, +5.9 pp, +5 yr warranty | | [Gamko New Energy GKA210M320W](https://comparepv.com/panel/gamko-new-energy-gka210m320w) | 320 W | Lighter, +5.9 pp, +5 yr warranty | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | Lighter, +5.9 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +5.9 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | Lighter, +5.9 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | Lighter, +5.9 pp, +5 yr warranty | | [SunLink LNSF-335P](https://comparepv.com/panel/sunlink-lnsf-335p) | 335 W | -0.3 pp | | [SunLink LNSF-345P](https://comparepv.com/panel/sunlink-lnsf-345p) | 345 W | +0.2 pp | | [SunLink LNSF-350P](https://comparepv.com/panel/sunlink-lnsf-350p) | 350 W | +10 W, +0.5 pp | | [SunLink LNSF-355P](https://comparepv.com/panel/sunlink-lnsf-355p) | 355 W | +15 W, +0.8 pp | | [SunLink LNSF-380M](https://comparepv.com/panel/sunlink-lnsf-380m) | 380 W | +40 W, +2.0 pp | | [SunLink LNSF-385M](https://comparepv.com/panel/sunlink-lnsf-385m) | 385 W | +45 W, +2.3 pp | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | +135 W, +6.9 pp, +15 yr warranty | --- Source: https://comparepv.com/panel/sunlink-lnsf-340p Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.