--- title: "Q-Cells Q.PEAK DUO BLK M-G11+ 390 Solar Panel: Specs & Datasheet | ComparePV" description: "Q-Cells Q.PEAK DUO BLK M-G11+ 390 solar panel. Specs: 20.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/hanwha-q-cells-q-peak-duo-blk-m-g11-390" image: "https://comparepv.com/og/panel/hanwha-q-cells-q-peak-duo-blk-m-g11-390.png" updated: 2026-09-11 --- # Q-Cells Q.PEAK DUO BLK M-G11+ 390 Space saver, no clear weak spot 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** Q-Cells - **Model:** Q.PEAK DUO BLK M-G11+ 390 - **Series:** Q.PEAK DUO BLK M-G11+ - **Rated power:** 390 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 350-400 W (579 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 390 W | 380 W | Typical | | | Module efficiency | 20.30% | 19.90% | Strong - top 16% | 11,851 | | Power density | 203.3 | 199.0 | Strong - top 14% | 11,802 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 15% | 8,846 | | Weight (kg) | 21.2 kg | 21.4 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.30% | 19.90% | Strong - top 16% | 11,851 | | Power density | 203.3 | 199.0 | Strong - top 14% | 11,802 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 15% | 8,846 | | Weight per kWp | 54.4 | 55.8 | Typical | 8,748 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Strengths - **203.3 watts per square metre** - Top 14% of the PERC 350-400 W segment, against a median of 199.0. - **-0.340 %/°C temperature coefficient** - Top 15% of the PERC 350-400 W segment, against a median of -0.350. - **20.30% module efficiency** - Top 16% of the PERC 350-400 W segment, against a median of 19.90%. - **Best for:** Residential and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 390 W - **Efficiency:** 20.30 % - **Voltage at Pmax (Vmp):** 30.77 V - **Current at Pmax (Imp):** 12.68 A - **Open-circuit voltage (Voc):** 37.13 V - **Short-circuit current (Isc):** 13.34 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.270 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 108 ### Physical - **Length:** 1692 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.2 kg - **Area:** 1.92 m2 - **Power density:** 203.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 86.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.50 % - **Output after 30 years:** 326 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11851 of 14129 | | Power density | 11802 of 14129 | | Temperature coefficient | 8846 of 14129 | | Weight | 8748 of 14129 | | Warranty | 9912 of 14129 | ## Pros - **Q.ANTUM DUO Z technology** - The proprietary technology eliminates gaps between cells and uses half-cut cells, achieving up to 20.8% module efficiency at power ratings up to 400 Wp - higher than the comparable Heliene 108HC (20.5%) and substantially above the DMEGC GH400M10T-B48HST (15.48%). - **25-year Tier-1 product warranty** - As a Tier-1 bankable manufacturer (South Korea, founded 1999), Q-Cells offers a full 25-year warranty on both product and power output - a combination rarely matched by less established brands in this segment. - **Reinforced frame with high mechanical load rating** - The panel is certified for snow loads up to 8100 Pa and wind loads up to 4000 Pa, ensuring safe operation under demanding climate conditions such as roofs with heavy snow accumulation. - **All-black aesthetics without performance trade-off** - The uniform black frame, backsheet, and cells don't come at the cost of power - the panel still delivers up to 400 Wp, which is uncommon in the all-black segment, where aesthetics usually reduce efficiency. - **Stable output in low-light conditions** - Optimized current flow and reduced internal losses deliver better energy yield under overcast skies and low-irradiance hours compared to standard PERC modules without this technology. ## Cons - **Production discontinued in 2023** - Introduced in 2021, the series was discontinued in 2023, which means limited availability for expanding existing installations and potential long-term challenges with warranty servicing and replacement parts. - **Older PERC technology instead of TOPCon/HJT** - PERC cells, despite reaching up to 20.8% efficiency, exhibit higher LID/LeTID degradation rates compared to newer n-type TOPCon cells, which dominate series released after 2023 and offer better long-term parameter stability. - **No bifacial variant available** - The panel is monofacial only (is\_bifacial: false), missing out on the potential additional 5-10% yield gain from rear-side light capture available in competing bifacial modules of the same power class. ## About this series The Q-Cells Q.PEAK DUO BLK M-G11+ solar panel series is an advanced all-black solution that sets new standards in the aesthetics and efficiency of residential installations. By using the proprietary **Q.ANTUM DUO Z technology**, the manufacturer has eliminated gaps between cells, allowing for maximum utilization of the module surface and achieving higher power density. The application of this innovation solves the problem of limited roof space, delivering more energy from every square meter. Choosing this series also eliminates concerns about building aesthetics, offering a uniform, deep black that blends perfectly with modern roofing. It is distinguished from the competition by its **25-year product warranty** and exceptional parameter stability in low light conditions. This is a product created for demanding private users for whom **high resistance to degradation** caused by external factors is key. These panels feature a **reinforced aluminum frame**, which ensures safety even in very difficult weather conditions. Thanks to the optimization of current flow and the reduction of internal losses, the M-G11+ series guarantees the highest reliability, becoming one of the most frequently chosen premium solutions on the Polish photovoltaic market. ## Notable figures - 20.3% module efficiency - 0.9pp better than the \*\*PERC 0-400W\*\* median of 19.4% - At 203.3 W/m² power density, this panel generates 9.1 W/m² more per unit area than \*\*PERC 0-400W\*\* median (194.2 W/m²) - Temperature coefficient of -0.34%/°C matches the \*\*PERC 0-400W\*\* median - #11851 for efficiency, #8846 for temperature performance out of 14129 panels ## Questions ### What is Q.ANTUM DUO Z technology in the Q.PEAK DUO BLK M-G11+ panels and does it actually make a difference? Q.ANTUM DUO Z is Q-Cells' proprietary technology that eliminates gaps between PERC cells across the module surface. This maximizes the active area, increasing power density. In practical terms, you generate more energy from the same roof area compared to conventional modules. The M-G11+ series delivers up to 400 Wp with a module efficiency of approximately 20.8%. ### What warranty comes with the Q-Cells Q.PEAK DUO BLK M-G11+ and what does it cover? The Q.PEAK DUO BLK M-G11+ series includes a 25-year product warranty and a 25-year power output warranty. The product warranty covers material and manufacturing defects. The power warranty guarantees that after 25 years the panel will retain a minimum efficiency level defined by the manufacturer. This is among the longest warranty standards available in the residential solar market. ### Do the Q.PEAK DUO BLK M-G11+ panels perform well in winter and overcast conditions typical of Central Europe? Yes. The M-G11+ series is designed for stable performance in low-irradiance conditions common in Central European climates during autumn and winter. Q.ANTUM DUO Z technology reduces internal losses in the PERC cells, allowing the panel to generate power even under diffuse light. The reinforced aluminum frame also provides structural safety under snow load and high wind pressure. ### Does the Q.PEAK DUO BLK M-G11+ look good on a roof and does it work well with dark roof tiles? The BLK series is a full all-black module, combining black PERC cells, a black backsheet, and a black anodized aluminum frame for a uniform appearance. This aesthetic pairs well with dark ceramic tiles, bituminous shingles, or standing-seam metal roofing. For homeowners who prioritize building aesthetics, this is one of the primary reasons to choose this series over standard silver-framed modules. ### Is the Q-Cells Q.PEAK DUO BLK M-G11+ a bifacial module and can it be used on dual-exposure mounting systems? No, the Q.PEAK DUO BLK M-G11+ is a monofacial module that captures sunlight from the front side only. It does not support bifacial technology, which harvests albedo light reflected from the ground on the rear side. Standard roof-mount or flat-roof installation is perfectly suitable, but bifacial racking systems will not provide any additional energy yield with this series. ### Is the Q.PEAK DUO BLK M-G11+ series still available for purchase? The Q.PEAK DUO BLK M-G11+ series has been officially discontinued. It may occasionally appear in distributor stock clearances, but availability is very limited and a full wattage selection cannot be guaranteed. Anyone planning a new installation should consider current Q-Cells production lines such as the Q.PEAK DUO BLK M-G11S+ or newer series, which offer comparable or higher specifications with active supply chain support. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Qcells-Data-sheet-QPEAK-DUO-BLK-M-G11-series-380-400-30T-20-e7e20e9fdd76.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Luxor Solar LX-440M/182-108+GG](https://comparepv.com/panel/luxor-solar-lx-440m-182-108-gg) | 440 W | +50 W, cooler, +2.8 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | -50 W, lighter, +2.7 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +2.7 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | Lighter, +2.7 pp, +5 yr warranty | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | Lighter, +2.7 pp, +5 yr warranty | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | Lighter, +2.7 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | Lighter, +2.7 pp, +5 yr warranty | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | +50 W, cooler, +2.6 pp | | [Q-Cells Q.PEAK DUO BLK M-G11+ 380](https://comparepv.com/panel/hanwha-q-cells-q-peak-duo-blk-m-g11-380) | 380 W | -10 W, -0.5 pp | | [Q-Cells Q.PEAK DUO BLK M-G11+ 385](https://comparepv.com/panel/hanwha-q-cells-q-peak-duo-blk-m-g11-385) | 385 W | Very close match | | [Q-Cells Q.PEAK DUO BLK M-G11+ 395](https://comparepv.com/panel/hanwha-q-cells-q-peak-duo-blk-m-g11-395) | 395 W | +0.3 pp | | [Q-Cells Q.PEAK DUO BLK M-G11+ 400](https://comparepv.com/panel/hanwha-q-cells-q-peak-duo-blk-m-g11-400) | 400 W | +10 W, +0.5 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +105 W, cooler, +4.5 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +100 W, cooler, +4.2 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +100 W, cooler, +4.2 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +95 W, cooler, +4.0 pp | --- Source: https://comparepv.com/panel/hanwha-q-cells-q-peak-duo-blk-m-g11-390 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.