--- title: "Huayao HY405-M108BDD 405W Solar Panel - Specs & Review | ComparePV" description: "Huayao HY405-M108BDD 405W solar panel. Specs: 20.74% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/huayao-hy405-m108bdd" updated: 2026-09-11 --- # Huayao HY405-M108BDD Warranty pick, heavy for its output 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** Huayao - **Model:** HY405-M108BDD - **Series:** Hyper M54 - **Rated power:** 405 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 400-450 W (954 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 405 W | 410 W | Typical | | | Module efficiency | 20.74% | 20.60% | Typical | 10,645 | | Power density | 207.4 | 206.2 | Typical | 10,626 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 23.5 kg | 22.0 kg | Weak - bottom 20% | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 17% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.74% | 20.60% | Typical | 10,645 | | Power density | 207.4 | 206.2 | Typical | 10,626 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 58.0 | 53.0 | Weak - bottom 20% | 11,522 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 17% | 21 | ### Strengths - **30 year performance warranty** - Top 17% of the PERC 400-450 W segment, against a median of 25 yrs. ### Watch out for - **58.0 kg per kWp** - Bottom 20% of the PERC 400-450 W segment, against a median of 53.0. - **Best for:** Residential and shaded-installations. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 405 W - **Efficiency:** 20.74 % - **Voltage at Pmax (Vmp):** 31.57 V - **Current at Pmax (Imp):** 12.83 A - **Open-circuit voltage (Voc):** 37.78 V - **Short-circuit current (Isc):** 13.56 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:** 0.050 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 20.00 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 23.5 kg - **Area:** 1.95 m2 - **Power density:** 207.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 344 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10645 of 14005 | | Power density | 10626 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 11522 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Half-cut 108-cell M54 architecture** - The 108-cell half-cut layout (182 mm wafer) splits the module into two independent electrical sections, reducing ohmic losses and limiting the impact of partial shading on total output. For Polish rooftop installations with chimneys or dormers, this is a tangible advantage over older full-cell designs. - **Up to 21.25% efficiency — competitive in the 400 W PERC segment** - Top variants reach 21.25% module efficiency, matching LEDVANCE M395~415P54LM (21.25%) and Aptos Solar DNA-108 (21.25%), and trailing the segment leader AE Solar AURORA AE MD-108 (21.28%) by only 0.03 percentage points. The series is efficiency-competitive within its peer group. - **Up to 30-year power warranty on select variants** - Select SKUs in the series carry a 30-year linear power warranty, exceeding the 25-year industry standard common among PERC peers (AE Solar AURORA, Aptos DNA-108). The extended warranty reduces investment risk and improves LCOE calculations for end customers. - **Full black option + 10 power variants (395–415 Wp)** - An available full black version (black frame, black backsheet) addresses growing premium residential demand. The 10-variant lineup spanning 20 Wp lets installers fine-tune string sizing for common MPPT inverters and minimize BoS losses. ## Cons - **Not on BNEF Tier-1 bankable list (H1 2026)** - Huayao does not appear on the BloombergNEF Tier-1 bankable manufacturers list as of H1 2026. This makes bank financing for commercial-scale projects more difficult to secure and may negatively affect the residual value of installations at property resale or lease assignment. - **PERC technology — aging cell generation** - TOPCon captured approximately 65% of global module production in 2024 (industry data 2025). N-type TOPCon cells degrade at ~0.4%/yr versus ~0.5%/yr for P-type PERC, and are free from LID — translating to 8–12% more lifetime energy output over a 25–30 year horizon. The Hyper M54's PERC architecture loses technological competitiveness against newer TOPCon designs available at comparable price points. ## About this series The Huayao Hyper M54 series comprises monofacial modules featuring a compact design, engineered for installations where maximizing available space is crucial. Utilizing half-cut architecture and a 108-cell layout in the M54 format helps minimize interconnection losses and enhances panel performance under partial shading-a factor that, given Poland’s conditions (chimneys, window frames, trees), actually translates to more stable energy production. In practice, the Hyper M54 stands out by combining **high cell density** with an emphasis on **consistent quality thanks to automated production**. For investors, the **esthetically appealing full black version** is also significant, often chosen for residential rooftops and modern premium buildings. It's an excellent choice for installation companies and clients seeking a module easy to integrate into common mounting systems, while simultaneously expecting **reliable performance in varying conditions** and predictable returns without compromise. ## Notable figures - At 20.7% efficiency, this panel is on par with typical \*\*PERC 400-450W\*\* modules - At 207.4 W/m² power density, roof space requirements are typical for \*\*PERC 400-450W\*\* panels - At -0.35%/°C, hot weather performance is typical for \*\*PERC 400-450W\*\* panels - At 23.5 kg, this panel is 1.5 kg heavier than the \*\*PERC 400-450W\*\* median (22.0 kg) - more demanding for installation crews - #10645 for efficiency, #10419 for temperature performance out of 14005 panels ## Questions ### What warranty does the Huayao Hyper M54 come with? Huayao provides a 15-year product warranty and a 30-year linear power warranty for the Hyper M54 series. The 30-year power guarantee ensures the module maintains a defined minimum output following the declared degradation curve. This places the Hyper M54 among the more competitive warranty offerings in the PERC panel segment. ### Does the Huayao Hyper M54 perform well on a small roof with partial shading? Yes. The half-cut cell architecture with 108 cells in the M54 format splits each cell into two independently operating halves, reducing resistive losses when part of the module is shaded. This design is particularly beneficial in real-world installations where chimneys, dormers, or nearby trees cause partial shading, resulting in more stable energy output compared to standard full-cell modules of the same size. ### What is the rated power of the Huayao Hyper M54 and what module efficiency does it reach? The Huayao Hyper M54 has a peak power output of 415 Wp. With a footprint typical for 182 mm cells in a 108-cell layout (approximately 1762×1134 mm), module efficiency is in the 20–21% range. This translates to high energy yield per square meter of available roof space, making it a strong choice where usable area is limited. ### Is the Huayao Hyper M54 available in a full black version, and is it suitable for modern residential buildings? Yes, the Hyper M54 series is offered in a full black version featuring a black frame and black backsheet. This option is popular on single-family homes and premium residential buildings where aesthetics matter. The uniform black surface blends well with dark roofing materials and suits modern architectural styles without visual disruption. ### What cell technology does the Huayao Hyper M54 use, and how does PERC compare to TOPCon? The Hyper M54 uses PERC technology, which adds a passivation layer to the rear of the cell to reduce electron recombination and improve efficiency over standard mono cells. TOPCon is a newer generation offering higher efficiencies above 22%, but at a higher price point. PERC in the Hyper M54 represents a proven balance of quality, performance, and cost for a typical residential solar installation. ### Are Huayao Hyper M54 panels compatible with common racking systems available in Europe? Yes. The Hyper M54 modules use standard dimensions and clamp spacing typical of 182 mm format cells, ensuring compatibility with most racking systems widely available in Europe, such as K2 Systems, Schletter, Renusol, and Esdec. It is always advisable to confirm the exact clamp spacing with your installer before purchasing mounting hardware. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/1-e6e66084aa5e.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-455-MAH54Db](https://comparepv.com/panel/aiko-aiko-455-mah54db) | 455 W | +50 W, cooler, +2.6 pp | | [Longi Solar LR5-54HTH-455M](https://comparepv.com/panel/longi-lr5-54hth-455m) | 455 W | +50 W, cooler, +2.6 pp | | [Yingli YL455CF54 e/2](https://comparepv.com/panel/yingli-yl455cf54-e-2) | 455 W | +50 W, cooler, +2.6 pp | | [Einnova Solarline ESM-455T](https://comparepv.com/panel/einnova-solarline-esm-455t) | 455 W | +50 W, cooler, +2.6 pp | | [SunEvo Solar SE5-54HBC-455W](https://comparepv.com/panel/sunevo-solar-se5-54hbc-455w) | 455 W | +50 W, cooler, +2.6 pp | | [Just Solar JST-EDMH-(445-465)W-TD (455W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-455w-class) | 455 W | +50 W, cooler, +2.6 pp | | [Luxor Solar LX-455M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-455m-182r-96-gg) | 455 W | +50 W, cooler, +2.6 pp | | [Huayao CETC-235T(GDF)/64](https://comparepv.com/panel/huayao-cetc-235t-gdf-64) | 235 W | -170 W, lighter, -8.1 pp | | [Huayao CETC-240T(GDF)/64](https://comparepv.com/panel/huayao-cetc-240t-gdf-64) | 240 W | -165 W, lighter, -7.7 pp | | [Huayao CETC-245T(GDF)/64](https://comparepv.com/panel/huayao-cetc-245t-gdf-64) | 245 W | -160 W, lighter, -7.6 pp | | [Huayao CETC-250T(GDF)/64](https://comparepv.com/panel/huayao-cetc-250t-gdf-64) | 250 W | -155 W, lighter, -7.3 pp | | [Huayao HY395-M108BDD](https://comparepv.com/panel/huayao-hy395-m108bdd) | 395 W | -10 W, -0.5 pp | | [Huayao HY400-M108BDD](https://comparepv.com/panel/huayao-hy400-m108bdd) | 400 W | -0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +105 W, cooler, +4.3 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +90 W, cooler, +4.1 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +100 W, cooler, +4.0 pp | --- Source: https://comparepv.com/panel/huayao-hy405-m108bdd Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.