--- title: "Q-Cells Q.PEAK DUO BLK M-G11S 395 395W Solar Panel - Specs & Review | ComparePV" description: "Q-Cells Q.PEAK DUO BLK M-G11S 395 395W solar panel. Specs: 20.20% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/hanwha-q-cells-gmbh-q-peak-duo-blk-m-g11s-395" updated: 2026-09-11 --- # Q-Cells Q.PEAK DUO BLK M-G11S 395 Strong in heat, no clear weak spot 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** Q-Cells - **Model:** Q.PEAK DUO BLK M-G11S 395 - **Series:** Q.PEAK DUO BLK M-G11S SERIES - **Rated power:** 395 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) | 395 W | 380 W | Strong - top 12% | | | Module efficiency | 20.20% | 19.90% | Typical | 11,956 | | Power density | 202.3 | 199.0 | Typical | 11,887 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 15% | 8,778 | | Weight (kg) | 21.1 kg | 21.4 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.20% | 19.90% | Typical | 11,956 | | Power density | 202.3 | 199.0 | Typical | 11,887 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 15% | 8,778 | | Weight per kWp | 53.4 | 55.8 | Typical | 7,342 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **-0.340 %/°C temperature coefficient** - Top 15% of the PERC 350-400 W segment, against a median of -0.350. - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 395 W - **Efficiency:** 20.20 % - **Voltage at Pmax (Vmp):** 30.49 V - **Current at Pmax (Imp):** 12.95 A - **Open-circuit voltage (Voc):** 37.04 V - **Short-circuit current (Isc):** 13.65 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:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.1 kg - **Area:** 1.95 m2 - **Power density:** 202.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 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:** 330 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11956 of 14005 | | Power density | 11887 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 7342 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Q.ANTUM DUO technology with half-cut cells** - The 6x18 monocrystalline PERC half-cut cell layout reduces resistive losses and improves partial-shading performance, delivering module efficiency up to 21% - competitive against peer comparables like VDS-S144/FNH (20.4%) and SKT410~430M10-108D4 (21%). - **Anti LeTID and Anti PID protection** - The manufacturer applies dedicated mechanisms to limit light- and elevated-temperature-induced degradation (LeTID) and potential-induced degradation (PID), supporting a more predictable, stable energy yield over the 25-year linear power warranty. - **High mechanical load resistance** - The frame is certified for snow loads up to 8100 Pa and wind loads up to 4000 Pa, making the series well-suited to demanding climates in Poland, including roofs subject to heavy winter loading. - **Established Tier-1 manufacturer** - Q-Cells (Hanwha Q CELLS) has operated since 1999 and is regularly listed on the BloombergNEF Tier-1 list, easing project bank financing and boosting investment confidence given the long-term service backing of the parent brand. - **Premium full-black aesthetics** - The anodized black frame and black back sheet deliver a uniform, premium look favored in high-end residential and commercial segments, without compromising the electrical specs versus the standard version. ## Cons - **Production discontinued as of 2025** - The series was launched in 2022 and discontinued in 2025, meaning limited market availability and potential difficulty sourcing identical panels for future array extensions. - **PERC technology trails newer N-type solutions** - At the same 410 Wp power rating, competing TOPCon-based series (e.g., Luxor Solar Eco Line N-type, 21.33% efficiency) offer higher efficiency and better temperature coefficients than the older PERC architecture used in the Q.PEAK DUO BLK. - **Shorter product warranty than power warranty** - The 12-year product warranty is notably shorter than the 25-year linear power warranty, while some newer TOPCon series on the market already offer 25-year product warranties, extending protection against material and workmanship defects. ## About this series Q-CELLS Q.PEAK DUO BLK M-G11S modules are full-black solar panels combining aesthetics with a refined structure designed for real working conditions in Poland. The application of half-cut monocrystalline cells in the DUO configuration translates to better operational stability under partial shading and reduced module losses, simplifying the design of rooftop installations near skylights, chimneys, or areas with variable sunlight exposure. Notable features include the **Q.ANTUM DUO technology** and **Anti LeTID and Anti PID protections**, which help mitigate common degradation mechanisms and maintain high energy yields over the long term. For investors, this means lower risks and more predictable energy production. These modules are distinguished by **Hot-Spot Protect**, enhancing safety under uneven illumination, and **enhanced mechanical durability** against wind and snow loads. This is an excellent choice for premium homes, commercial buildings, and installations where appearance, longevity, and reliable performance are key. ## Notable figures - At 20.2% efficiency, this panel is 0.8pp above typical \*\*PERC 0-400W\*\* modules (median: 19.4%) - Power density of 202.3 W/m² packs 7.9 W/m² more into the same footprint vs \*\*PERC 0-400W\*\* median (194.4 W/m²) - Temperature coefficient of -0.34%/°C matches the \*\*PERC 0-400W\*\* median - Ranked #11956 out of 14005 panels for efficiency in the database ## Questions ### Is the Q.PEAK DUO BLK M-G11S series still available for purchase? The Q.PEAK DUO BLK M-G11S series has been officially discontinued by Q-Cells. Some remaining stock may still be found through distributors, but the official successor is the Q.PEAK DUO BLK M-G11S+ model. If you need comparable performance and a full-black aesthetic, ask your distributor about current availability or the updated equivalent within the same product family. ### What warranty does the Q.PEAK DUO BLK M-G11S 410W panel carry? The Q.PEAK DUO BLK M-G11S series comes with a 12-year product warranty covering material and manufacturing defects, and a 25-year linear power warranty. After 25 years, Q-Cells guarantees at least 86% of the original rated power output. As a Tier 1 manufacturer headquartered in South Korea, Q-Cells has a solid track record of honoring long-term warranty commitments. ### What is Q.ANTUM DUO technology and what does it mean in practice for the G11S series? Q.ANTUM DUO is Q-Cells' proprietary technology combining PERC cells in a half-cut format with an advanced passivation anti-reflective coating. Splitting each cell reduces resistive losses and improves stability under partial shading conditions. The result is a module efficiency of around 21% and measurably higher annual energy yield on rooftops with chimneys, dormers, or variable irradiance. ### Is the Q.PEAK DUO BLK M-G11S suitable for sloped roofs with chimneys or dormers? Yes. The 108 half-cut cells arranged in the DUO configuration make the module significantly less sensitive to partial shading than conventional full-cell modules. Hot-Spot Protect prevents localized overheating under uneven irradiance. At 1722×1134 mm and 21.1 kg, the panel fits standard gabled and hipped rooftops without requiring non-standard mounting hardware. ### How does the Q.PEAK DUO BLK M-G11S perform in winter and under low-light conditions? The G11S series features a low power temperature coefficient of -0.34%/°C, meaning smaller output drops on cold but sunny days typical of Central European spring and autumn seasons. Q.ANTUM DUO technology also delivers reliable performance under diffuse light. Anti LeTID and Anti PID protection limit long-term degradation in high-humidity environments, which is a relevant factor in Poland's climate. ### Can the Q.PEAK DUO BLK M-G11S withstand heavy snow and wind loads common in Poland? Yes. The aluminum frame is certified for snow loads up to 8100 Pa and wind loads up to 4000 Pa, comfortably exceeding requirements for Polish climate zones. The 3.2 mm tempered glass further reinforces mechanical durability. This makes the panel a reliable choice for mountain and coastal installations where loads are above the national average. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Qcells-Data-sheet-QPEAK-DUO-BLK-M-G11S-series-390-410-2023-91522782016c.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 | Cooler, +2.9 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +2.8 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, +2.8 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, +2.8 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, +2.8 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, +2.8 pp, +5 yr warranty | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | Cooler, +2.7 pp, +5 yr warranty | | [Luxor Solar LX-440M/182-108+](https://comparepv.com/panel/luxor-solar-lx-440m-182-108) | 440 W | +45 W, cooler, +2.7 pp | | [Q-Cells Q.PEAK DUO BLK M-G11S 390](https://comparepv.com/panel/hanwha-q-cells-gmbh-q-peak-duo-blk-m-g11s-390) | 390 W | Very close match | | [Q-Cells Q.PEAK DUO M-G11S 400](https://comparepv.com/panel/hanwha-q-cells-gmbh-q-peak-duo-m-g11s-400) | 400 W | +0.3 pp | | [Q-Cells Q.PEAK DUO M-G11S 405](https://comparepv.com/panel/hanwha-q-cells-gmbh-q-peak-duo-m-g11s-405) | 405 W | +10 W, +0.5 pp | | [Q-Cells Q.PEAK DUO M-G11S 410](https://comparepv.com/panel/hanwha-q-cells-gmbh-q-peak-duo-m-g11s-410) | 410 W | +15 W, +0.8 pp | | [Q-Cells Q.TRON BLK M-G2+ 415](https://comparepv.com/panel/hanwha-q-cells-q-tron-blk-m-g2-415) | 415 W | +20 W, cooler, +1.1 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +115 W, cooler, +4.8 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +100 W, cooler, +4.6 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +110 W, cooler, +4.5 pp | --- Source: https://comparepv.com/panel/hanwha-q-cells-gmbh-q-peak-duo-blk-m-g11s-395 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.