--- title: "Phono Solar NS-450MH-120 Solar Panel: Specs & Datasheet | ComparePV" description: "Phono Solar NS-450MH-120 solar panel. Specs: 20.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/phono-solar-ns-450mh-120" image: "https://comparepv.com/og/panel/phono-solar-ns-450mh-120.png" updated: 2026-09-11 --- # Phono Solar NS-450MH-120 Middle of its segment, modest efficiency 302 panels in the segment N-type 450-500 W ## Identity - **Manufacturer:** Phono Solar - **Model:** NS-450MH-120 - **Series:** Monocrystalline 120 - **Rated power:** 450 W - **Cell technology:** N-type ## How it compares Compared against segment N-type 450-500 W (302 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 450 W | 470 W | Weak - bottom 8% | | | Module efficiency | 20.80% | 22.52% | Weak - bottom 4% | 10,533 | | Power density | 208.1 | 225.3 | Weak - bottom 4% | 10,539 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight (kg) | 21.5 kg | 23.7 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 7% | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.80% | 22.52% | Weak - bottom 4% | 10,533 | | Power density | 208.1 | 225.3 | Weak - bottom 4% | 10,539 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight per kWp | 47.8 | 49.7 | Typical | 1,892 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 7% | 9,912 | ### Watch out for - **20.80% module efficiency** - Bottom 4% of the N-type 450-500 W segment, against a median of 22.52%. Ranked 10,533rd in the whole database. - **208.1 watts per square metre** - Bottom 4% of the N-type 450-500 W segment, against a median of 225.3. Ranked 10,539th in the whole database. - **25 year performance warranty** - Bottom 7% of the N-type 450-500 W segment, against a median of 30 yrs. Ranked 9,912th in the whole database. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Tight roof space, roofs where every square metre has to count and owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 450 W - **Efficiency:** 20.80 % - **Voltage at Pmax (Vmp):** 34.80 V - **Current at Pmax (Imp):** 12.94 A - **Open-circuit voltage (Voc):** 41.50 V - **Short-circuit current (Isc):** 13.91 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:** 120 ### Physical - **Length:** 1907 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.5 kg - **Area:** 2.16 m2 - **Power density:** 208.1 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 25 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10533 of 14129 | | Power density | 10539 of 14129 | | Temperature coefficient | 2220 of 14129 | | Weight | 1892 of 14129 | | Warranty | 9912 of 14129 | ## Pros - **N-type cells with lower degradation** - N-type cells exhibit a lower LID/LeTID degradation rate than older P-type/PERC technology and better performance retention at high module operating temperatures, translating into higher real-world energy yield during summer months. - **120 half-cut cell layout** - The 120 half-cut cell configuration reduces resistive losses and improves module performance under partial shading - a significant advantage given typical Polish rooftop obstructions such as chimneys, dormers, or antennas. - **Enhanced PID resistance** - Improved PID (Potential Induced Degradation) resistance helps maintain stable power output over the long-term operating life of the installation, lowering the risk of premature efficiency loss. - **Tier-1 BNEF status since 2014** - Phono Solar has held Tier-1 status on the Bloomberg New Energy Finance list continuously since 2014, backed by the Sumec Group and parent company Sinomach (Fortune 500), supporting strong project bankability for installations using these modules. - **Aesthetic full-black variants** - Full-black finish variants (frame, backsheet, ribbons) eliminate the visible grid pattern of standard modules, a meaningful benefit for installations on prominent roofs and facades of modern buildings. ## Cons - **Discontinued production (2018-2023)** - The Monocrystalline 120 series was manufactured from 2018 to 2023 and has since been discontinued. This means limited availability of matching modules for system expansion and potentially longer turnaround times for service claims. - **Efficiency below segment leaders** - Maximum efficiency of 22.42% trails comparable 485 Wp peer modules such as the Gokin GK-5-54HGb (24.3%) and Solar-Fabrik Mono S4 Quartercut Premium DE (24.27%), meaning more roof area is required to achieve the same power output. - **Warranty typical for its release era** - The 15-year product and 25-year power warranty were standard for series launched in 2018, whereas current N-type/TOPCon modules now commonly offer 25-30 years of product warranty, making this series less competitive against today's offerings. ## About this series The Phono Solar Monocrystalline 120 series is designed for high energy production in locations where every square meter of roof space counts. The use of **PERC monocrystalline cells** allows for more effective utilization of solar radiation, even in less sunny conditions, while the **half-cut design (120 cut cells)** minimizes internal losses and improves module performance under partial shading. This is a real advantage in Polish conditions, where chimneys, skylights, antennas, or trees can cause shading. Another key feature of this series is **increased resistance to PID degradation**, which helps maintain the stability of the system's performance over time. Aesthetics are also important for investors - the **fully black finish** options complement modern roofs and facades without creating a "grid effect". The Phono Solar Monocrystalline 120 is a good choice for single-family homes, small businesses, and installations where reliability, predictable performance in varying conditions, and high-quality workmanship are important, all of which can be appreciated from the initial installation stage. ## Notable figures - At 20.8% efficiency, this panel is 1.7pp below the \*\*N-type 450-500W\*\* median of 22.5% - 208.1 W/m² power density is 17.2 W/m² below \*\*N-type 450-500W\*\* median (225.3 W/m²) - requires larger installation area - Temperature coefficient of -0.29%/°C matches the \*\*N-type 450-500W\*\* median - Weight of 21.5 kg (2.2 kg below \*\*N-type 450-500W\*\* median of 23.7 kg) allows easier transport and roof mounting - In the top 75% for efficiency among all N-type panels ## Questions ### Is the Phono Solar Monocrystalline 120 series still available for purchase? The Phono Solar Monocrystalline 120 series has been discontinued. The manufacturer is no longer fulfilling new orders, and availability is limited to existing distributor stock. If you are planning an installation, check with your supplier about current inventory levels or consider a newer Phono Solar series with comparable specifications. ### What warranty does the Phono Solar Monocrystalline 120 series carry? Phono Solar provides a 15-year product warranty covering material and manufacturing defects, along with a 25-year linear power warranty guaranteeing that panels retain a defined output level throughout their operational life. These terms are consistent with Tier 1 manufacturer standards and comparable to leading brands available in European markets. ### What does the half-cut 120-cell design in the Phono Solar Monocrystalline 120 series mean in practice? Half-cut technology splits each cell in two, reducing internal resistance and lowering resistive losses. In practice, the panel delivers better performance under partial shading conditions, because shading one cell string does not shut down the entire module. This is directly relevant in residential installations where chimneys, dormers, antennas, or nearby trees frequently cast shadows on part of the array. ### What makes the N-type cell technology in the Phono Solar Monocrystalline 120 series stand out? N-type cells have significantly lower susceptibility to LID (Light-Induced Degradation) compared to conventional P-type cells, resulting in more stable long-term energy output. They also exhibit a better temperature coefficient, meaning less power loss on hot days. Both advantages contribute to a more predictable energy yield over the 25-year power warranty period. ### Are Phono Solar Monocrystalline 120 panels rated at 485 Wp suitable for a typical pitched roof? Yes, at 485 Wp per panel, you can build a high-output system even on limited roof space. Full-size modules in this class perform well on gable and hip roofs common in single-family homes. The all-black frame and backsheet variant integrates cleanly with modern roofing materials. Verify the exact panel dimensions with your distributor before ordering the racking system. ### Is Phono Solar a reliable manufacturer - is it worth investing in their panels? Phono Solar holds Tier 1 status according to Bloomberg NEF classification, confirming the company's financial stability, production scale, and consistent quality. The manufacturer has been operating since 2004 and runs its own cell production lines. Tier 1 status matters when financing a system through a bank or leasing company, as lenders and insurers typically require panels from globally recognized brands with established warranty service networks. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ns-450-485mh-120-1907-1134-30-7c20e32c3ab2.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +45 W, +4.0 pp, +5 yr warranty | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +40 W, +3.7 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +50 W, +3.7 pp, +5 yr warranty | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +50 W, +3.7 pp, +5 yr warranty | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +50 W, +3.7 pp, +5 yr warranty | | [GCL GCL-NR10R/54BGDF](https://comparepv.com/panel/gcl-gcl-nr10r-54bgdf) | 500 W | +50 W, +3.7 pp, +5 yr warranty | | [Phono Solar PS440M6-20/UH](https://comparepv.com/panel/phono-solar-ps440m6-20-uh) | 440 W | Hotter, heavier, -0.5 pp | | [Phono Solar PS445M6-20/UH](https://comparepv.com/panel/phono-solar-ps445m6-20-uh) | 445 W | Hotter, heavier, -0.2 pp | | [Phono Solar PS450M6-20/UH](https://comparepv.com/panel/phono-solar-ps450m6-20-uh) | 450 W | Hotter, heavier | | [Phono Solar PS455M6-20/UH](https://comparepv.com/panel/phono-solar-ps455m6-20-uh) | 455 W | Hotter, heavier, +0.2 pp | | [Phono Solar PS460M6-20/UH](https://comparepv.com/panel/phono-solar-ps460m6-20-uh) | 460 W | Hotter, heavier, +0.4 pp | | [Phono Solar NS-460MH-120](https://comparepv.com/panel/phono-solar-ns-460mh-120) | 460 W | +10 W, +0.5 pp | | [Phono Solar NS-470MH-120](https://comparepv.com/panel/phono-solar-ns-470mh-120) | 470 W | +20 W, +0.9 pp | | [Phono Solar NS-480MH-120](https://comparepv.com/panel/phono-solar-ns-480mh-120) | 480 W | +30 W, +1.4 pp | | [Phono Solar NS-485MH-120](https://comparepv.com/panel/phono-solar-ns-485mh-120) | 485 W | +35 W, +1.6 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +110 W, +4.0 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/phono-solar-ns-450mh-120 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.