--- title: "JA Solar JAM54D40-415/GB Solar Panel: Specs & Datasheet | ComparePV" description: "JA Solar JAM54D40-415/GB solar panel. Specs: 21.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ja-solar-jam54d40-415-gb-1" image: "https://comparepv.com/og/panel/ja-solar-jam54d40-415-gb-1.png" updated: 2026-09-11 --- # JA Solar JAM54D40-415/GB Middle of its segment, needs the roof space 1,220 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** JA Solar - **Model:** JAM54D40-415/GB - **Series:** DeepBlue 4.0 - **Rated power:** 415 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 400-450 W (1220 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 415 W | 435 W | Weak - bottom 9% | | | Module efficiency | 21.30% | 22.00% | Weak - bottom 13% | 8,585 | | Power density | 212.5 | 220.2 | Weak - bottom 10% | 8,858 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,152 | | Weight (kg) | 21.5 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.30% | 22.00% | Weak - bottom 13% | 8,585 | | Power density | 212.5 | 220.2 | Weak - bottom 10% | 8,858 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,152 | | Weight per kWp | 51.8 | 51.5 | Typical | 5,203 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **212.5 watts per square metre** - Bottom 10% of the TOPCon 400-450 W segment, against a median of 220.2. - **21.30% module efficiency** - Bottom 13% of the TOPCon 400-450 W segment, against a median of 22.00%. - **Best for:** Residential, commercial, shaded-installations and hot-climate. - **Not ideal for:** Roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 415 W - **Efficiency:** 21.30 % - **Voltage at Pmax (Vmp):** 31.59 V - **Current at Pmax (Imp):** 13.14 A - **Open-circuit voltage (Voc):** 37.92 V - **Short-circuit current (Isc):** 14.02 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.260 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 10.00 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.5 kg - **Area:** 1.95 m2 - **Power density:** 212.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 363 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8585 of 14129 | | Power density | 8858 of 14129 | | Temperature coefficient | 6152 of 14129 | | Weight | 5203 of 14129 | | Warranty | 21 of 14129 | ## Pros - **N-type TOPCon Bycium+ cell technology** - N-type TOPCon cells with JA Solar's proprietary Bycium+ architecture virtually eliminate light-induced degradation (LID) and achieve an annual degradation rate of ~0.40%/yr - measurably better than standard PERC (~0.45%/yr). Over a 25-year horizon, this translates to a meaningfully higher cumulative energy yield with no early-life degradation spike. - **Up to 22.3% efficiency - top of segment** - The highest-binned variants reach 22.3% module efficiency, outperforming direct peer comparables: ZNShine ZXM7-UHLDD108 (22.28%), Luxen LUXPOWER N5 (22.28%), and Solitek SOLID Blackstar (22.27%). The higher power density delivers more energy from constrained rooftop areas - a critical factor for typical Polish residential rooftops of 20-40 m². - **Temperature coefficient of -0.29%/°C** - At -0.29%/°C, the module delivers ~88.5% of rated power at 65 °C cell temperature. Standard PERC modules at -0.35%/°C yield only ~86.5% under the same conditions - a real-world advantage during summer peaks that improves annual energy yield and LCOE in warm-weather operating conditions. - **Up to 30-year power warranty (>87.4%)** - JA Solar backs select variants with a 30-year linear power warranty guaranteeing >87.4% of nameplate power at end-of-warranty and annual degradation ≤0.4%/yr after year one. Some variants within the 12-model series carry a 25-year warranty; the applicable term must be verified in the model-specific datasheet. - **BNEF Tier-1 Q2 2026 - full bankability** - JA Solar is listed on the BNEF Tier-1 panel in Q2 2026 with >100 GW/yr global production capacity, confirming bankability for project financing, sustained warranty coverage, and supply continuity. Founded in 2005, the company's established market position eliminates orphan-warranty risk for installations targeting a 20+ year service life. ## Cons - **12-year product (workmanship) warranty** - The materials and workmanship warranty covers only 12 years - historically the Chinese Tier-1 baseline, but below what LONGi (25 years, Hi-MO X6), REC Group (25 years), and Trina Solar (15 years, Vertex S+) now offer. For residential installations targeting a 20-25 year service life, the shorter product warranty represents a quantifiable risk factor should latent manufacturing defects emerge after year 12. ## About this series The JA Solar DeepBlue 4.0 series introduces a new quality to the renewable energy sector through the use of innovative N-type cells. The use of proprietary **Bycium+ Cell** technology allows for exceptionally high conversion efficiency while almost completely eliminating light-induced degradation. This solves the key problem of performance loss over time, offering users stable energy production for decades. Thanks to the **SMBB (Super Multi-Busbar)** architecture, these modules show significantly better resistance to micro-cracks and conduct current more efficiently, which sets them apart from competitors- standard products based on older p-type solutions. This series also stands out for its excellent temperature coefficient, guaranteeing **high energy yields on hot days**, when traditional panels lose their efficiency. It is an ideal solution for both individual prosumers and large photovoltaic farms, where **maximizing power density** per square meter of surface area is of key business importance. DeepBlue 4.0 is proof that advanced n-type technology is becoming the new standard, offering real savings through better performance in diffused light conditions, which is extremely important in the specific Polish climate. ## Notable figures - At 21.3% efficiency, this panel is 0.7pp below the \*\*TOPCon 400-450W\*\* median of 22.0% - 212.5 W/m² power density is 7.7 W/m² below \*\*TOPCon 400-450W\*\* median (220.2 W/m²) - requires larger installation area - At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 400-450W\*\* panels - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces - #8585 for efficiency, #6152 for temperature performance out of 14129 panels ## Questions ### What is the warranty on JA Solar DeepBlue 4.0 panels? The JA Solar DeepBlue 4.0 series comes with a 12-year product warranty covering material and manufacturing defects, and a 30-year linear power output warranty. Thanks to N-type TOPCon technology with Bycium+ cells, annual power degradation stays below 0.4%, guaranteeing at least 87.4% of original output after 30 years of operation - one of the strongest power warranties available on the market today. ### What is TOPCon technology in the DeepBlue 4.0 and why is it better than PERC? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that uses a thin tunnel oxide layer to improve surface passivation. In the DeepBlue 4.0 series, this translates to module efficiency of 21.8-22.3% and up to 3.9% higher annual energy yield compared to p-PERC modules. A key advantage is the near-complete elimination of LID (Light Induced Degradation), which visibly reduced output in first-generation PERC panels during the first months of operation. ### Do JA Solar DeepBlue 4.0 panels perform well under overcast skies typical in Poland? Yes. The SMBB (Super Multi-Busbar) architecture combined with N-type TOPCon technology improves current collection under diffuse light conditions characteristic of the Polish climate, especially in autumn and winter. The manufacturer reports 3.9% higher energy yield than p-PERC modules under identical irradiance. The half-cut cell layout also reduces losses from partial shading caused by chimneys or antennas. ### How does the DeepBlue 4.0 temperature coefficient affect summer energy production? The DeepBlue 4.0 series has a temperature coefficient of -0.30%/°C, which outperforms the typical -0.35%/°C of PERC modules. At a cell temperature of 70°C on a hot day, power loss reaches approximately 15% rather than 17.5% with older technology. Over a full year, this results in measurably more kilowatt-hours of generation, particularly in rooftop installations with limited underside ventilation. ### What are the power output and dimensions of the 435 W JA Solar DeepBlue 4.0 module? The 435 Wp model in the DeepBlue 4.0 series delivers 435 watts peak power at module efficiency up to 22.3%. The panel uses 108 half-cut cells in 182 mm format, with dimensions of approximately 1762 × 1134 × 30 mm and a weight of about 22 kg. Standard dimensions and weight simplify rooftop transport and installation on conventional aluminum racking without requiring specialized mounting hardware. ### Is the JA Solar DeepBlue 4.0 compatible with popular inverters such as SolarEdge, Fronius, or SMA? Yes, the DeepBlue 4.0 series is compatible with inverters from leading manufacturers including SolarEdge, Fronius, SMA, Huawei, and Growatt. The panel operates within the voltage range standard for string inverters (Voc approx. 37.1 V), simplifying string design. For systems using power optimizers or microinverters, consult a certified PV system designer beforehand to determine the optimal number of modules per string. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/20230311054008789-3593a9e08f9e.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Just Solar JST-EDMH-(445-465)W-TD (465W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-465w-class) | 465 W | +50 W, lighter, +2.5 pp | | [Luxor Solar LX-465M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-465m-182r-96-gg) | 465 W | +50 W, cooler, +2.5 pp | | [AIKO AIKO-A460-MAH54Mb](https://comparepv.com/panel/aiko-shenzhen-aiko-digital-energy-technology-co-ltd-aiko-a460-mah54mb-1) | 460 W | +45 W, cooler, +2.3 pp | | [Luxor Solar LX-465M/182R188-108+ GG](https://comparepv.com/panel/luxor-solar-lx-465m-182r188-108-gg) | 465 W | +50 W, heavier, +2.3 pp | | [Just Solar JST-EDMH-(445-465)W-TD (460W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-460w-class) | 460 W | +45 W, lighter, +2.3 pp | | [Luxor Solar LX-460M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-460m-182r-96-gg) | 460 W | +45 W, cooler, +2.2 pp | | [Philadelphia Solar PS-MNB108(HCBF)-460W](https://comparepv.com/panel/philadelphia-solar-ps-mnb108-hcbf-460w) | 460 W | +45 W, cooler, +2.2 pp | | [JA Solar JAT54S40-460/LR](https://comparepv.com/panel/ja-solar-jat54s40-460-lr) | 460 W | +45 W, cooler, +2.2 pp | | [JA Solar JAM54S31-380/MR](https://comparepv.com/panel/ja-solar-jam54s31-380-mr) | 380 W | Hotter, -1.8 pp, -5 yr warranty | | [JA Solar JAM54S31-385/MR](https://comparepv.com/panel/ja-solar-jam54s31-385-mr) | 385 W | Hotter, -1.6 pp, -5 yr warranty | | [JA Solar JAM54D30-390/MB/1500V](https://comparepv.com/panel/ja-solar-jam54d30-390-mb-1500v) | 390 W | -25 W, hotter, -1.4 pp | | [JA Solar JAM54S31-390/MR](https://comparepv.com/panel/ja-solar-jam54s31-390-mr) | 390 W | Hotter, -1.3 pp, -5 yr warranty | | [JA Solar JAM54D30-395/MB/1500V](https://comparepv.com/panel/ja-solar-jam54d30-395-mb-1500v) | 395 W | Hotter, heavier, -1.1 pp | | [JA Solar JAM54S31-395/MR](https://comparepv.com/panel/ja-solar-jam54s31-395-mr) | 395 W | Hotter, -1.1 pp, -5 yr warranty | | [JA Solar JAM54S30-400/MR](https://comparepv.com/panel/ja-solar-jam54s30-400-mr) | 400 W | Hotter, -0.8 pp, -5 yr warranty | | [JA Solar JAM54D30-400/MB/1500V](https://comparepv.com/panel/ja-solar-jam54d30-400-mb-1500v) | 400 W | Hotter, heavier, -0.9 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +95 W, cooler, +3.7 pp | --- Source: https://comparepv.com/panel/ja-solar-jam54d40-415-gb-1 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.