--- title: "Q-Cells Q.PEAK DUO BLK ML-G10.C1+/AC-400 Solar Panel: Specs & Datasheet | ComparePV" description: "Q-Cells Q.PEAK DUO BLK ML-G10.C1+/AC-400 solar panel. Specs: 20.40% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/q-cells-q-peak-duo-blk-ml-g10-c1-ac-400" image: "https://comparepv.com/og/panel/q-cells-q-peak-duo-blk-ml-g10-c1-ac-400.png" updated: 2026-09-11 --- # Q-Cells Q.PEAK DUO BLK ML-G10.C1+/AC-400 Strong in heat, heavy for its output 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** Q-Cells - **Model:** Q.PEAK DUO BLK ML-G10.C1+/AC-400 - **Series:** Q.PEAK DUO BLK ML-G10+/AC SERIES - **Rated power:** 400 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 400-450 W (954 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 400 W | 410 W | Weak - bottom 9% | | | Module efficiency | 20.40% | 20.60% | Typical | 11,680 | | Power density | 203.7 | 206.2 | Typical | 11,744 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 24% | 8,846 | | Weight (kg) | 23.8 kg | 22.0 kg | Weak - bottom 14% | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.40% | 20.60% | Typical | 11,680 | | Power density | 203.7 | 206.2 | Typical | 11,744 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 24% | 8,846 | | Weight per kWp | 59.4 | 53.0 | Weak - bottom 14% | 12,208 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Strengths - **-0.340 %/°C temperature coefficient** - Top 24% of the PERC 400-450 W segment, against a median of -0.350. ### Watch out for - **59.4 kg per kWp** - Bottom 14% 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):** 400 W - **Efficiency:** 20.40 % - **Voltage at Pmax (Vmp):** 37.13 V - **Current at Pmax (Imp):** 10.77 A - **Open-circuit voltage (Voc):** 45.30 V - **Short-circuit current (Isc):** 11.14 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 ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 132 ### Physical - **Length:** 1879 mm - **Width:** 1045 mm - **Thickness:** 40 mm - **Weight:** 23.8 kg - **Area:** 1.96 m2 - **Power density:** 203.7 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:** 334 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11680 of 14129 | | Power density | 11744 of 14129 | | Temperature coefficient | 8846 of 14129 | | Weight | 12208 of 14129 | | Warranty | 9912 of 14129 | ## Pros - **Factory-integrated AC microinverter** - The panel ships with a built-in microinverter (Enphase IQ7+), eliminating separate power optimizer installation and wiring while automatically satisfying rapid shutdown requirements (NEC 690.12) without extra components. - **Half-cut Q.ANTUM DUO Z cells** - The patented half-cut cell technology reduces shading losses and lowers series resistance compared to conventional full-format DC modules. - **Consistent 25/25-year warranty on module and microinverter** - Both the panel and the integrated microinverter carry a 25-year product warranty and a 25-year linear power warranty, matching peer comparables (LEDVANCE, AE Solar, Aptos Solar) and removing the need for separate electronics servicing. - **Module-level monitoring** - The Q.OMMAND app tracks output at the individual panel level, speeding up fault diagnosis compared to systems with a single central inverter, where issues are only visible at the string level. - **High mechanical durability** - The frame withstands snow loads up to 8,100 Pa and wind loads up to 4,000 Pa, making the series suitable for demanding climates and heavily loaded roofs. ## Cons - **Below-average efficiency for the segment** - The 21.1% peak efficiency (PERC technology) trails comparable monofacial modules: LEDVANCE M395~415P54LM (21.25%), AE Solar AURORA MD-108 (21.28%), and Aptos DNA 108 (21.25%), despite a similar 415 Wp max power rating. - **No bifacial variant** - The series is monofacial only, while some tier-1 competitors already offer bifacial variants delivering an extra 5-15% yield from rear-side reflection, particularly on light-colored roofs or elevated mounts. - **Per-panel electronics** - Integrating the microinverter into the module means any electronics failure requires roof access to the specific panel, potentially making service more labor-intensive than replacing a single central inverter or DC string optimizer. ## About this series The Q.PEAK DUO BLK ML-G10+/AC series is a line of solar panels with a factory-**integrated microinverter**, delivering a ready-to-use AC module that eliminates the need for separately installing and wiring power optimizers. This approach significantly simplifies and speeds up installation while ensuring compliance with rapid shutdown requirements, which is especially valuable for residential rooftops with complex geometry or partial shading. The panel is built on the patented **Q.ANTUM DUO Z** technology featuring half-cut cells, resulting in better shade tolerance and lower energy losses compared to conventional DC modules. Its sleek, all-black design with an anodized aluminum frame makes the series a great fit for installations where the visual appearance of the roof or facade matters. An added benefit is **module-level monitoring** through the Q.OMMAND apps, which simplifies diagnostics and enables quick detection of potential issues. Thanks to advanced protection against PID and LeTID degradation, along with a rugged construction rated for high snow and wind loads, this series is particularly well suited for private homeowners and installers seeking a simpler, safer, and more visually appealing solution for residential microinstallations. ## Notable figures - At 20.4% efficiency, this panel is on par with typical \*\*PERC 400-450W\*\* modules - At 203.7 W/m² power density, roof space requirements are typical for \*\*PERC 400-450W\*\* panels - Temperature coefficient of -0.34%/°C matches the \*\*PERC 400-450W\*\* median - At 23.8 kg, this panel is 1.8 kg heavier than the \*\*PERC 400-450W\*\* median (22.0 kg) - more demanding for installation crews - In the top 83% for efficiency among all PERC panels ## Questions ### How does the AC module in the Q.PEAK DUO BLK ML-G10+/AC series differ from a standard DC module with power optimizers? In this AC module, the microinverter is factory-integrated directly with the panel, so DC-to-AC conversion happens at the module level instead of a central inverter. Installers do not need to separately mount and wire power optimizers, which speeds up installation and reduces the number of components that could fail. For homeowners, this means a simpler, more predictable install, especially on roofs with complex geometry. ### Do Q.PEAK DUO BLK ML-G10+/AC panels meet rapid shutdown requirements? Yes, thanks to the integrated microinverter, the module automatically complies with rapid shutdown standards required by many local fire safety codes. Rooftop voltage drops to a safe level almost immediately after power is cut, which is important for firefighter and occupant safety in residential rooftop installations. ### What warranty comes with the Q.PEAK DUO BLK ML-G10+/AC series? Q-Cells, a tier 1 manufacturer based in South Korea, provides a 25-year product warranty and a 25-year power performance warranty, guaranteeing at least 86 percent of nominal power at the end of that period. Note that the integrated microinverter is a separate electronic component and typically carries its own warranty from the microinverter manufacturer, so it's worth checking the datasheet before purchase. ### Does the Q.ANTUM DUO Z half-cut cell technology improve performance under partial shading? Yes. Half-cut cells connected using zero-gap technology reduce power losses when part of the panel is shaded, for example by a chimney or a neighboring building. Additionally, since each module has its own microinverter, shading on one panel does not drag down the output of an entire string, as could happen in a classic DC system with a single central inverter. ### Can I monitor the performance of a single panel in the Q.PEAK DUO BLK ML-G10+/AC series? Yes, thanks to the built-in microinverter, each module reports its energy production data individually through the Q.OMMAND app. This makes it easy to spot a performance drop on a single panel, for example due to soiling or a fault, without having to analyze the entire array, speeding up diagnostics and service response. ### Are Q.PEAK DUO BLK ML-G10+/AC panels suitable for roofs with heavy snow or wind loads? Yes, the modules feature a reinforced, anodized aluminum frame certified for snow and wind loads up to 5400 Pa, higher than the market standard. Combined with PID and LeTID degradation protection and a fully black aesthetic, this makes the series well suited both for roofs with complex geometry and for regions with demanding weather conditions. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/58bad2a1ee85425a227f548f.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, +2.7 pp, +5 yr warranty | | [Just Solar JST-EDMH-(445-465)W-TD (450W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-450w-class) | 450 W | +50 W, +2.7 pp, +5 yr warranty | | [Q-SUN Solar QNN182-HG450-54](https://comparepv.com/panel/qn-solar-pv-limited-qnn182-hg450-54) | 450 W | +50 W, cooler, +2.6 pp | | [Huayao HY440-N108BDD](https://comparepv.com/panel/huayao-hy440-n108bdd) | 450 W | +50 W, +2.6 pp, +5 yr warranty | | [BYD NLBK-27-450](https://comparepv.com/panel/byd-nlbk-27-450) | 450 W | +50 W, +2.6 pp, +5 yr warranty | | [Renesola RS41-450NBG-E3](https://comparepv.com/panel/renesola-rs41-450nbg-e3) | 450 W | +50 W, cooler, +2.6 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 | -15 W, lighter, -0.8 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 | -10 W, lighter, -0.5 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 | Lighter, -0.3 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 | Lighter, +0.2 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +110 W, cooler, +4.6 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +105 W, cooler, +4.3 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | +105 W, cooler, +4.3 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +100 W, cooler, +4.1 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +100 W, cooler, +4.1 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +100 W, cooler, +4.1 pp | --- Source: https://comparepv.com/panel/q-cells-q-peak-duo-blk-ml-g10-c1-ac-400 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.