--- title: "AmoSolar AS455M10-120 455W Solar Panel - Specs & Review | ComparePV" description: "AmoSolar AS455M10-120 455W solar panel. Specs: 21.01% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/amosolar-as455m10-120" updated: 2026-09-11 --- # AmoSolar AS455M10-120 Light for its output, no clear weak spot 449 panels in the segment PERC 450-500 W ## Identity - **Manufacturer:** AmoSolar - **Model:** AS455M10-120 - **Series:** AS440-465M10-120 - **Rated power:** 455 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 450-500 W (449 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 455 W | 460 W | Typical | | | Module efficiency | 21.01% | 20.82% | Typical | 9,744 | | Power density | 210.1 | 208.5 | Typical | 9,759 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 23.0 kg | 24.5 kg | Strong - top 24% | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.01% | 20.82% | Typical | 9,744 | | Power density | 210.1 | 208.5 | Typical | 9,759 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 50.5 | 53.1 | Strong - top 24% | 3,925 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **50.5 kg per kWp** - Top 24% of the PERC 450-500 W segment, against a median of 53.1. - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 455 W - **Efficiency:** 21.01 % - **Voltage at Pmax (Vmp):** 35.30 V - **Current at Pmax (Imp):** 12.91 A - **Open-circuit voltage (Voc):** 43.60 V - **Short-circuit current (Isc):** 13.36 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.275 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 120 ### Physical - **Length:** 1910 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 23.0 kg - **Area:** 2.17 m2 - **Power density:** 210.1 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 373 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 9744 of 14005 | | Power density | 9759 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 3925 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **M10 half-cut blades (182 mm) with genuine loss reduction** - Dividing the cells in half reduces the series resistance by approximately 50% compared to standard full-sized cells, which results in lower heating and better performance under partial shading (e.g., in a chimney or on an antenna). The M10 (182 mm) format allows for a power output of 465 Wp without the need for artificial Voc boosting. - **Performance at the mainstream level of the segment** - The maximum efficiency of the module, 21.47%, is practically equivalent to the comparable JS Solar JS182MHC120 (21.48%) and significantly exceeds the lower limit of the series (20.31%), indicating consistent quality in the production of the solar cells. When calculated for a typical roof with an area of approximately 25 m², the difference between the 440 W and 465 W versions represents a real increase of approximately 60 kWh per year. - **Available in 6 different power configurations, ranging from 440–465 Wp** - The wide selection of 6 variants makes it easy to match the string to the inverter and minimizes mismatch losses in installations with irregular surfaces. This is a practical advantage for residential and small-scale commercial projects, eliminating the need to purchase a different series. - **25-year linear warranty on power** - A 25-year performance guarantee is an industry standard that is widely accepted by most insurance companies for residential solar installations. It aligns with the level offered by comparable brands (DAH, JS Solar, Jinko) in this price range. - **PERC technology – comprehensive service support** - PERC is a mature, widely-used technology with a well-established knowledge base for installers and service technicians in Poland. In the event of a complaint or replacement, the availability of spare parts and diagnostic expertise is significantly better than with niche, newer technologies. ## Cons - **Lack of Tier-1 status / bankability (according to BNEF)** - AmoSolar does not appear on BloombergNEF's (Tier-1) list of bankable manufacturers, which means it does not meet the criteria for non-recourse project finance. For installations exceeding approximately 100 kWp financed through investment loans or bank leasing, this could restrict the use of these modules or increase insurance costs. - **Product warranty of 12 years versus 15 years for Tier-1 products** - The manufacturer offers a 12-year warranty on the product, while leading manufacturers (Jinko, DAH, JA Solar) typically offer a 15-year warranty. The 3-year difference is significant for modules installed between 2022 and 2024, as failures in the connectors or laminate are statistically most common around the 10–15 year mark. - **The gap in performance – 1.31 pp compared to the leader** - The maximum efficiency of 21.47% is 1.31 percentage points lower than the DAH DHN-54R18/DG(BW) (22.78%). On a 10 kWp installation with the same roof area, this translates to approximately 400-550 kWh less per year (under typical solar irradiation of ~1100 kWh/m²/year for central Poland). - **Lack of reciprocity with a competing DAH** - The series is monofacial, while the directly comparable DAH DHN-54R18/DG(BW) offers bifaciality (BW = bifacial white backsheet). For ground-mounted or rooftop installations, bifaciality typically provides an additional 5–12% annual yield without any additional surface area costs. ## About this series The AmoSolar AS440-465M10-120 series consists of monocrystalline modules with a 120-cell half-cut design, specifically engineered to effectively improve energy yield under typical operating conditions. Thanks to the **PERC technology**, the panel better utilizes diffused light, which is important in conditions with variable cloud cover and during transitional months. The use of **M10 (182 mm) cells** allows for achieving high power output from a single module without artificially manipulating parameters, while the half-cut design minimizes losses and improves performance under partial shading. In practice, this series addresses a common problem for investors: how to maximize kWh output from a limited roof or ground-mounted area. This is facilitated by the **high module efficiency** and optimized thermal performance, thanks to the **favorable temperature coefficient of power**, which reduces summer production losses. This is a good choice for residential and commercial installations, as well as larger projects where predictability and **long-term warranty** are important. ## Notable figures - At 21.0% efficiency, this panel is on par with typical \*\*PERC 450-500W\*\* modules - Power density of 210.1 W/m² matches the \*\*PERC 450-500W\*\* median - At -0.35%/°C, hot weather performance is typical for \*\*PERC 450-500W\*\* panels - 23.0 kg weight - 1.5 kg lighter than \*\*PERC 450-500W\*\* median (24.5 kg), reducing installation effort - Ranked #9744 out of 14005 panels for efficiency in the database ## Questions ### What warranty coverage applies to the AmoSolar AS440-465M10-120 series? The AS440-465M10-120 series carries a 12-year product warranty covering material defects and workmanship, along with a 25-year linear power output warranty. This means that after 25 years of operation, the module is guaranteed to produce at least 80% of its rated nameplate power. It is worth noting that AmoSolar does not appear on the Bloomberg Tier 1 module manufacturer list, which introduces a higher risk regarding long-term warranty claim fulfillment. Buyers are strongly advised to retain proof of purchase and ensure that warranty obligations are clearly defined in the installer contract. ### Does PERC technology combined with half-cut cells make a meaningful difference in partially shaded installations? Yes, and the benefit is twofold. PERC technology enhances the module's ability to capture diffuse irradiance, which is particularly relevant under the variable cloud cover typical of the Polish climate. Splitting each cell into two halves — yielding 120 half-cut cells instead of 60 full cells — reduces the operating current per string and limits resistive losses when part of the module is shaded by a chimney, antenna, or dormer window. The combined effect translates into measurably higher annual energy yield compared with conventional full-cell modules under real-world shading conditions. ### How much energy will a single AmoSolar AS465M10-120 panel produce annually when installed in Poland? The rated power of 465 Wp is measured under Standard Test Conditions (STC: 1,000 W/m², 25 °C), which represent a laboratory benchmark rather than real-world operation. In practice, a typical grid-tied PV installation in Poland generates between 900 and 1,100 kWh per year per installed kilowatt-peak, depending on geographic location, array tilt angle, and overall system losses (BoS losses, inverter efficiency, wiring). A single 465 Wp module in a well-designed south-facing installation in southern Poland can be expected to produce approximately 420–510 kWh annually. ### Are the AmoSolar AS440-465M10-120 panels suitable for a typical pitched roof installation in Poland? Yes. The AS440-465M10-120 series consists of monofacial modules — they do not feature an active rear surface — and are therefore installed using standard rooftop racking systems. The M10 cell format (182 mm wafer size) enables high power output within a relatively compact module footprint, which simplifies handling and layout planning on roofs with limited usable area. The modules are fully compatible with standard mounting systems widely available on the Polish market, including aluminum rail systems with mid and end clamps. ### What distinguishes M10 (182 mm) cells from older cell formats, and why does this matter when selecting a module? M10 cells with a 182 mm side length represent a larger wafer format than the older M6 (166 mm) or G1 (158 mm) generations. The larger cell area delivers higher per-module power without increasing the cell count, which directly reduces the cost per watt-peak and simplifies installation logistics by requiring fewer modules for a given system size. In the AmoSolar AS440-465M10-120 series, the use of 120 M10 half-cut cells allows the module to achieve up to 465 Wp — a competitive output level within the PERC technology class. ### Is AmoSolar a reputable manufacturer, and is purchasing modules from this brand a safe choice? AmoSolar is a Chinese photovoltaic module manufacturer that does not appear on the Bloomberg Tier 1 module manufacturer list — a ranking that includes approximately 3% of manufacturers deemed to be the largest and most financially stable in the industry. Absence from this list does not automatically indicate a defective product, but it does imply a higher risk regarding warranty fulfillment over a 25-year horizon, particularly if the manufacturer were to face financial difficulties. When purchasing this series, it is advisable to buy through a well-established distributor with a registered presence in Poland, as the distributor can serve as an additional layer of warranty protection and facilitate any future claims. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/182-mono-half-cell-120cells-440-465w-1910-1134-979c563eac2c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, +3.8 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +50 W, cooler, +3.7 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, +3.5 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, +3.5 pp, +5 yr warranty | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, +3.5 pp, +5 yr warranty | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | Cooler, +3.5 pp, +5 yr warranty | | [AmoSolar AS440M10-120](https://comparepv.com/panel/amosolar-as440m10-120) | 440 W | -15 W, -0.7 pp | | [AmoSolar AS445M10-120](https://comparepv.com/panel/amosolar-as445m10-120) | 445 W | -10 W, -0.5 pp | | [AmoSolar AS450M10-120](https://comparepv.com/panel/amosolar-as450m10-120) | 450 W | -0.2 pp | | [AmoSolar AS460M10-120](https://comparepv.com/panel/amosolar-as460m10-120) | 460 W | +0.2 pp | | [AmoSolar AS465M10-120](https://comparepv.com/panel/amosolar-as465m10-120) | 465 W | +10 W, +0.5 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +105 W, cooler, +3.8 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +100 W, cooler, +3.6 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +95 W, cooler, +3.4 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +85 W, cooler, +3.4 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +85 W, cooler, +3.4 pp | --- Source: https://comparepv.com/panel/amosolar-as455m10-120 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.