--- title: "Q-Cells Q.PEAK DUO BLK ML-G10+ 420 Solar Panel: Specs & Datasheet | ComparePV" description: "Q-Cells Q.PEAK DUO BLK ML-G10+ 420 solar panel. Specs: 21.40% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/q-cells-q-peak-duo-blk-ml-g10-420" image: "https://comparepv.com/og/panel/q-cells-q-peak-duo-blk-ml-g10-420.png" updated: 2026-09-22 --- # Q-Cells Q.PEAK DUO BLK ML-G10+ 420 Middle of its segment, short guarantee 6,992 panels in the 320-520 W band, all technologies ## Identity - **Manufacturer:** Q-Cells - **Model:** Q.PEAK DUO BLK ML-G10+ 420 - **Series:** Q.PEAK DUO BLK ML-G10+ SERIES - **Rated power:** 420 W - **Cell technology:** Monocrystalline ## How it compares Compared against 320-520 W band, all technologies (6992 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 420 W | 440 W | Typical | | | Module efficiency | 21.40% | 21.50% | Typical | 8,388 | | Power density | 213.9 | 214.9 | Typical | 8,407 | | Temperature coefficient | -0.340 | -0.300 | Typical | 8,846 | | Weight (kg) | 22.0 kg | 23.0 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 18% | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.40% | 21.50% | Typical | 8,388 | | Power density | 213.9 | 214.9 | Typical | 8,407 | | Temperature coefficient | -0.340 | -0.300 | Typical | 8,846 | | Weight per kWp | 52.4 | 53.0 | Typical | 5,904 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 18% | 9,912 | ### Watch out for - **25 year performance warranty** - Bottom 18% of the 320-520 W band, against a median of 30 yrs. - **Best for:** Residential and shaded-installations. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 420 W - **Efficiency:** 21.40 % - **Voltage at Pmax (Vmp):** 38.13 V - **Current at Pmax (Imp):** 11.01 A - **Open-circuit voltage (Voc):** 45.45 V - **Short-circuit current (Isc):** 11.27 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 count:** 132 ### Physical - **Length:** 1879 mm - **Width:** 1045 mm - **Thickness:** 32 mm - **Weight:** 22.0 kg - **Area:** 1.96 m2 - **Power density:** 213.9 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:** 351 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8388 of 14129 | | Power density | 8407 of 14129 | | Temperature coefficient | 8846 of 14129 | | Weight | 5904 of 14129 | | Warranty | 9912 of 14129 | ## Pros - **Zero-gap Q.ANTUM DUO Z with half-cut cells** - The half-cut monocrystalline cell layout with zero gap between cells reduces optical losses and improves performance under partial shading, delivering higher real-world energy yield from limited roof area than conventional full-cell modules. - **Up to 21.4% efficiency within the PERC segment** - Efficiency of 20.1-21.4% is close to the best PERC modules on the market (GCL GCL-M10/54H at 21.5%, RedSolar P series at 21.52%), meaning that at 395-420 Wp the panel does not fall significantly behind competitors despite using older cell technology. - **Full quality protection package** - Anti-LID, Anti-PID, and Hot-Spot Protect limit power degradation under typical operating conditions, while the Tra.Q traceability system ensures cell traceability through the manufacturing chain - valuable for quality audits in commercial projects. - **25-year product and linear power warranty** - The manufacturer guarantees 25 years on the product plus at least 86% of nominal power after 25 years - a strong tier-1 standard, still well above the typical 10-12 year warranties offered by non-tier-1 manufacturers. - **Tier-1, bankable manufacturer** - Q-Cells (Hanwha, South Korea, founded 1999) is classified as tier-1 bankable, which eases project financing through banks and lessors and provides greater confidence in warranty servicing compared to lesser-known brands among the peer comparables. ## Cons - **Production discontinued (2023)** - The series was manufactured from 2022 to 2023 and has since been discontinued in favor of newer lineups (including the N-type-based Q.TRON series). This limits availability of identical modules for future system expansions and may complicate warranty claim fulfillment over time. - **Efficiency below peer comparables** - Maximum efficiency of 21.4% trails competing PERC/N-type series: GCL-M10/54H (21.5%), RedSolar P series (21.52%), and Jinko JS-PERC (21.7%), all at the same 420 Wp maximum power - meaning slightly more mounting area is needed to reach the same installed capacity. - **PERC technology, not N-type** - PERC cells exhibit higher LID/LeTID degradation rates and weaker high-temperature performance than newer N-type cells (TOPCon/HJT), which now dominate the premium segment - this can translate into a slightly lower annual yield in warmer climates compared to the newest technologies. ## About this series The Q-Cells Q.PEAK DUO BLK ML-G10+ series are modules designed to extract maximum energy from limited rooftop space, without compromising on durability and aesthetics. The applied cell arrangement in **Q.ANTUM DUO Z (zero gap)** technology minimizes losses resulting from the "dead space" between cells, translating to a truly better light utilization. The structure based on **half-cell monocrystalline cells** improves performance under partial shading and reduces the risk of yield drops in typical urban conditions. In practice, these panels are an excellent choice for investors seeking stable yields over years - supported by security packages, including **Anti-LID, Anti-PID, and Hot-Spot Protect**, and traceability thanks to **Tra.Q**. The series also stands out for quality assurance through rigorous external testing (Quality Controlled PV). This solution is particularly suited for single-family homes, where high efficiency, an elegant "all-black" appearance, and resilience to weather caprices are key. ## Notable figures - Efficiency of 21.4% matches the \*\*database\*\* median - At 213.9 W/m², this panel generates 4.2 W/m² less per unit area than \*\*database\*\* median (218.1 W/m²) - -0.34%/°C temperature coefficient - 0.04pp worse than \*\*database\*\* median (-0.30%/°C), expect higher hot weather losses - At 22.0 kg, this panel is 4.5 kg lighter than \*\*database\*\* median (26.5 kg) - easier handling during installation - #8388 for efficiency, #8846 for temperature performance out of 14129 panels ## Questions ### What warranty does the Q-Cells Q.PEAK DUO BLK ML-G10+ series come with? The Q.PEAK DUO BLK ML-G10+ series includes a 25-year product warranty and a 25-year linear power output warranty. The warranty guarantees at least 98% of nominal power in the first year, followed by a maximum annual degradation of 0.5%, ensuring no less than 86% of rated output after 25 years. Coverage applies to modules purchased through an authorized Hanwha Q Cells distributor. ### What is Q.ANTUM DUO Z technology and why does it matter for this series? Q.ANTUM DUO Z is Q-Cells' proprietary cell architecture combining a PERC structure with half-cut cells and a zero-gap layout that eliminates inactive spacing between cells. This maximizes active surface area, pushing module efficiency up to 21.1%. The design is especially beneficial under diffuse irradiance conditions, delivering more consistent energy yield on overcast days. ### Do the Q.PEAK DUO BLK ML-G10+ 415W panels perform well under partial shading? Yes. The half-cut cell design splits the 132-cell module into two independent electrical strings, limiting shading losses to only the affected section rather than the whole module. This is a practical advantage for residential roofs with chimneys, dormers, or antennas. The built-in Hot-Spot Protect feature further reduces the risk of hot-spot formation in shaded cells. ### How do the Q.PEAK DUO BLK ML-G10+ panels look and are they suitable for dark-colored roofs? This series features a fully all-black design with a black anodized aluminum frame and black backsheet, making it an ideal aesthetic match for dark tile or metal roofs where conventional silver-framed panels would stand out. At 415 Wp, the module fits within standard residential mounting systems without requiring special racking hardware. ### Is the Q.PEAK DUO BLK ML-G10+ series still available for purchase? The Q.PEAK DUO BLK ML-G10+ series has been discontinued by Hanwha Q Cells and is no longer in active production. Limited stock may still be available through some distributors as remaining inventory. Buyers looking for a current equivalent should consider newer Q-Cells series such as the Q.PEAK DUO ML-G11 or Q.TRON, which offer higher efficiency ratings and full manufacturer support. ### How do Q.PEAK DUO BLK ML-G10+ modules hold up under extreme weather conditions? The module frame is certified to withstand snow loads of up to 5400 Pa and wind loads of up to 4000 Pa, meeting requirements for most European climate zones. Anti-PID protection guards against voltage-induced degradation, while Anti-LID technology minimizes initial light-induced degradation after installation. The Tra.Q serialization system enables full production-batch traceability, which is useful in warranty or authenticity claims. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/V3EPlQau-6676b2f69389.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 | +45 W, +2.4 pp, +5 yr warranty | | [Luxor Solar LX-465M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-465m-182r-96-gg) | 465 W | Cooler, +2.4 pp, +5 yr warranty | | [Maxeon SPR-MAX7-470](https://comparepv.com/panel/maxeon-spr-max7-470) | 470 W | Cooler, +2.3 pp, +15 yr warranty | | [AIKO AIKO-A470-MAH54Mb](https://comparepv.com/panel/aiko-aiko-a470-mah54mb) | 470 W | +50 W, cooler, +2.2 pp | | [AIKO AIKO-A460-MAH54Mb](https://comparepv.com/panel/aiko-shenzhen-aiko-digital-energy-technology-co-ltd-aiko-a460-mah54mb-1) | 460 W | Cooler, +2.2 pp, +5 yr warranty | | [TCL Zhonghuan HSM-BD54-LA470](https://comparepv.com/panel/tcl-zhonghuan-hsm-bd54-la470) | 470 W | +50 W, cooler, +2.2 pp | | [Q-Cells Q.PEAK DUO BLK ML-G10+ 385](https://comparepv.com/panel/q-cells-q-peak-duo-blk-ml-g10-385) | 385 W | -35 W, -1.8 pp | | [Q-Cells Q.PEAK DUO BLK ML-G10+ 390](https://comparepv.com/panel/q-cells-q-peak-duo-blk-ml-g10-390) | 390 W | -30 W, -1.5 pp | | [Q-Cells Q.PEAK DUO BLK ML-G10.a+ 395](https://comparepv.com/panel/qcells-hanwha-q-cells-america-inc-q-peak-duo-blk-ml-g10-395) | 395 W | -25 W, -1.3 pp | | [Q-Cells Q.PEAK DUO BLK ML-G10.a+ 400](https://comparepv.com/panel/qcells-hanwha-q-cells-america-inc-q-peak-duo-blk-ml-g10-400) | 400 W | -20 W, -1.0 pp | | [Q-Cells Q.PEAK DUO BLK ML-G10.a+ 405](https://comparepv.com/panel/qcells-hanwha-q-cells-america-inc-q-peak-duo-blk-ml-g10-405) | 405 W | -15 W, -0.8 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +90 W, cooler, +3.6 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +85 W, cooler, +3.3 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | +85 W, cooler, +3.3 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +80 W, cooler, +3.1 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +80 W, cooler, +3.1 pp | --- Source: https://comparepv.com/panel/q-cells-q-peak-duo-blk-ml-g10-420 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.