--- title: "PolyCrown Solar Tech NS-440MH-108 440W Solar Panel - Specs & Review | ComparePV" description: "PolyCrown Solar Tech NS-440MH-108 440W solar panel. Specs: 22.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/polycrown-solar-tech-ns-440mh-108" updated: 2026-09-11 --- # PolyCrown Solar Tech NS-440MH-108 Light for its output, short guarantee 321 panels in the segment N-type 400-450 W ## Identity - **Manufacturer:** PolyCrown Solar Tech - **Model:** NS-440MH-108 - **Series:** Monocrystalline108 - **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 | 22.50% | 21.91% | Strong - top 10% | 4,222 | | Power density | 225.1 | 218.3 | Strong - top 12% | 4,439 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 19.5 kg | 22.0 kg | Strong - top 4% | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 11% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.50% | 21.91% | Strong - top 10% | 4,222 | | Power density | 225.1 | 218.3 | Strong - top 12% | 4,439 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 44.3 | 51.2 | Strong - top 4% | 422 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 11% | 9,798 | ### Strengths - **44.3 kg per kWp** - Top 4% of the N-type 400-450 W segment, against a median of 51.2. Ranked 422nd in the whole database. - **22.50% module efficiency** - Top 10% of the N-type 400-450 W segment, against a median of 21.91%. Ranked 4,222nd in the whole database. - **225.1 watts per square metre** - Top 12% of the N-type 400-450 W segment, against a median of 218.3. ### Watch out for - **25 year performance warranty** - Bottom 11% of the N-type 400-450 W segment, against a median of 30 yrs. - **Best for:** Weight-limited structures, small roofs that need every watt and roofs where every square metre counts. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 440 W - **Efficiency:** 22.50 % - **Voltage at Pmax (Vmp):** 32.16 V - **Current at Pmax (Imp):** 13.69 A - **Open-circuit voltage (Voc):** 38.16 V - **Short-circuit current (Isc):** 14.78 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 108 ### Physical - **Length:** 1724 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 19.5 kg - **Area:** 1.96 m2 - **Power density:** 225.1 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 89.0 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.42 % - **Output after 30 years:** 382 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4222 of 14005 | | Power density | 4439 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 422 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Efficiency on par with segment leaders** - Peak efficiency of 23.02% matches the best peer comparables (Phono Solar Draco N-TOPCon, SunKean SKT440-460M12-96D4) and clearly exceeds Axitec AXIbiperfect GR WB (22.54%). This result comes from combining N-type TOPCon cells with half-cut architecture. - **Full PID resistance** - The manufacturer states full resistance to potential-induced degradation (PID), which combined with the 25-year power warranty significantly reduces the risk of yield loss in installations exposed to high system voltages. - **High power density from 108 cells** - The 108 half-cut cell architecture delivers up to 460 Wp per module, meaning fewer panels are needed to reach a target system capacity - a real advantage on limited roof space. - **Wide power range across 7 variants** - The series spans 7 power variants from 410 to 460 Wp, giving installers flexibility to match the module to specific roof geometry and target peak power without switching base technology. - **Lower losses under shading and heat** - Half-cut technology reduces energy losses under partial shading and lowers internal resistance, while the improved temperature coefficient of N-type cells limits power loss during high module operating temperatures. ## Cons - **No bifacial variant available** - The series is monofacial only, while the direct peer comparable Axitec AXIbiperfect GR WB offers bifacial technology at the same 460 Wp maximum power. This means no additional rear-side yield (typically 5-15%) in ground-mount installations or on high-albedo surfaces. - **Standard 15/25-year warranty package** - The 15-year product warranty and 25-year power warranty are now market-standard terms, while some N-type manufacturers in 2026 are shifting toward 25/30-year packages, giving buyers a longer real protection period with competing brands. - **Shorter track record, unconfirmed Tier 1 status** - PolyCrown Solar Tech has operated since 2014, and available sources show no confirmation of a BloombergNEF Tier 1 listing, unlike peer Phono Solar (Tier 1 since 2014). This can matter for bank financing of large-scale installations, where Tier 1 status is often a requirement. ## About this series The PolyCrown Solar Tech Monocrystalline 108 series focuses on **maximizing yields from limited roof space**, utilizing advanced half-cut cell architecture. Thanks to the use of 108-cell technology, these modules are characterized by optimal operating voltage, which directly translates into higher inverter efficiency in typical residential installations. A key feature of the series is **Half-Cut technology**, which drastically reduces energy losses resulting from partial shading and lowers internal resistance, guaranteeing stable system operation even in difficult weather conditions. These panels effectively solve the problem of potential-induced degradation, offering **full resistance to the PID effect**, which significantly extends the real lifespan of the entire power plant. It is a solution designed for demanding individual investors and companies that care about **high power density** while maintaining an aesthetic roof appearance. Compared to standard modules, the 108 series from PolyCrown shows a significantly better temperature coefficient, which minimizes performance drops on hot days. This is a solid foundation for a modern RES system, combining innovative frame construction with **exceptional mechanical strength** against extreme snow and wind loads, which places them at the forefront of products with the best quality-to-price ratio. ## Notable figures - Efficiency of 22.5% is 0.6pp above the \*\*N-type 400-450W\*\* median (21.9%) - Power density of 225.1 W/m² packs 6.8 W/m² more into the same footprint vs \*\*N-type 400-450W\*\* median (218.3 W/m²) - At -0.29%/°C, hot weather performance is typical for \*\*N-type 400-450W\*\* panels - At 19.5 kg, this panel is 2.5 kg lighter than \*\*N-type 400-450W\*\* median (22.0 kg) - easier handling during installation - Ranked #4222 out of 14005 panels for efficiency in the database ## Questions ### What warranty comes with the PolyCrown Solar Tech Monocrystalline108 panels? The Monocrystalline108 series comes with a 15-year product warranty covering manufacturing defects and a 25-year linear power output warranty. This means the manufacturer guarantees module efficiency will remain above the specified threshold for a full quarter century. These are standard premium-tier warranty conditions for TOPCon-based modules and provide long-term investment security throughout the system's entire lifecycle. ### What is TOPCon technology and is it worth choosing in the Monocrystalline108 series? TOPCon (Tunnel Oxide Passivated Contact) is a next-generation monocrystalline cell architecture that achieves higher efficiency than older PERC technology. In the Monocrystalline108 series, this translates to greater energy yield from the same roof area and lower temperature-related losses. For the system owner, it means a shorter payback period and higher lifetime energy production — making it a well-justified choice over standard PERC modules. ### Do the PolyCrown Monocrystalline108 460 Wp panels suffer significant power loss on hot days? Thanks to the TOPCon cell architecture and half-cut design, the Monocrystalline108 series offers a favorable temperature coefficient that outperforms older PERC modules. In practice, this means reduced power loss during hot summer days — especially relevant for installations on dark roof tiles or in high-irradiance regions. For precise figures, refer to the manufacturer's official datasheet for the temperature coefficient values (Pmax, Voc, Isc). ### Are the Monocrystalline108 panels resistant to the PID effect and partial shading? Yes, the Monocrystalline108 series offers full PID (Potential Induced Degradation) resistance, protecting modules from voltage-induced degradation in systems without grounding. The half-cut 108-cell architecture also significantly reduces losses under partial shading — from chimneys, antennas, or neighboring structures — because each cell operates independently within smaller module sections, limiting the cascading impact of any single shaded area. ### What mechanical loads can PolyCrown Monocrystalline108 panels handle — are they suitable for roofs with heavy snow or strong winds? The Monocrystalline108 series features a reinforced aluminum frame designed for high mechanical resistance against extreme snow loads and strong wind gusts typical of central European climates. The rigid frame construction increases overall module stiffness. Before installation, verify the exact allowable load values in the official datasheet to select the appropriate mounting structure and ensure compliance with local building codes. ### Are the PolyCrown Monocrystalline108 460 Wp panels compatible with popular inverters on the market? Yes, the 460 Wp Monocrystalline108 modules are compatible with most popular single-phase and three-phase string inverters. The 108 half-cut cell configuration delivers an optimized operating voltage and a wide MPPT range, which improves inverter efficiency under typical conditions. Before purchasing, verify the inverter's maximum input voltage and MPPT window against the module's datasheet specifications to ensure full system compatibility. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ns-410-440mh-108-1724-1134-30-3da54ec3fc84.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +50 W, +2.0 pp, +5 yr warranty | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +50 W, +2.0 pp, +5 yr warranty | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +45 W, +1.8 pp, +5 yr warranty | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +45 W, +1.8 pp, +5 yr warranty | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +45 W, +1.8 pp, +5 yr warranty | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | +45 W, +1.8 pp, +5 yr warranty | | [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | Heavier, +1.8 pp, +5 yr warranty | | [PolyCrown Solar Tech NS-410MH-108](https://comparepv.com/panel/polycrown-solar-tech-ns-410mh-108) | 410 W | -30 W, -1.5 pp | | [PolyCrown Solar Tech NS-420MH-108](https://comparepv.com/panel/polycrown-solar-tech-ns-420mh-108) | 420 W | -20 W, -1.0 pp | | [PolyCrown Solar Tech NS-430MH-108](https://comparepv.com/panel/polycrown-solar-tech-ns-430mh-108) | 430 W | -10 W, -0.5 pp | | [PolyCrown Solar Tech NS-435MH-108](https://comparepv.com/panel/polycrown-solar-tech-ns-435mh-108) | 435 W | -0.2 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +70 W, +2.5 pp, +5 yr warranty | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +55 W, +2.3 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +65 W, +2.2 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +60 W, +2.0 pp, +5 yr warranty | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +60 W, +2.0 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/polycrown-solar-tech-ns-440mh-108 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.