Strong in heat, no clear weak spot
The Q.PEAK DUO BLK ML-G10.a+ series is a solar panel line built for residential rooftops, where visual appeal matters just as much as output. Using 132 monocrystalline half-cut cells together with the proprietary zero-gap Q.ANTUM DUO Z technology, the modules reduce internal power losses and maintain strong conversion efficiency even under less-than-ideal irradiance. The fully black design, frame, backsheet, and cells alike, lets the panels blend seamlessly into a home's architecture instead of standing out like traditional blue-toned modules. The series also stands out for its structural resilience: a reinforced aluminum frame is rated for extreme snow and wind loads, making it a solid choice in harsher climates. Long-term energy yield stability is supported by built-in Anti LeTID, Anti PID, and Hot-Spot Protect safeguards that limit performance degradation over time. The whole series is backed by a 25-year product warranty and linear performance warranty, with manufacturing quality validated through the rigorous TÜV Rheinland Quality Controlled PV certification program. It's a fitting option for buyers looking for a trusted brand, a clean aesthetic finish, and predictable long-term returns on their PV investment.
Ranking
Signals from the data
Residential, shaded-installations, cold-climate and BIPV.
Top 15% of the PERC 350-400 W segment, against a median of -0.350.
Q-Cells (Hanwha Q CELLS, South Korea, founded 1999) is a bankable Tier-1 manufacturer, which directly improves project financing access and lender/insurer confidence for installations using this series.
The fully black design (frame, backsheet, cells) retains efficiency up to 21.1%, putting it in the same league as competitors like LEDVANCE M395-415P54LM (21.25%) or Aptos DNA 108 (21.25%), despite the aesthetic-driven design typically involving an efficiency compromise.
A standard-for-segment 25-year product warranty aligns with the power warranty - the manufacturer guarantees roughly 86% of nominal power after 25 years, a market-typical figure for PERC technology released in 2021.
Q.ANTUM DUO Z technology with zero-gap half-cut cells, combined with LeTID and PID degradation protection, limits energy yield loss in the early years of operation - an important factor when forecasting installation LCOE.
This additional voluntary certification program, beyond standard IEC norms, confirms manufacturing consistency, reducing the risk of batch defects in large-scale installations.
Released in 2021, this series has since been discontinued - limiting availability of matching modules for system expansions and potentially extending warranty claim resolution times if replacement with an identical model is required.
PERC is a prior-generation technology compared to the N-type TOPCon/HJT now dominant in the premium segment - peer comparables like AE Solar AURORA MD-108 (21.28%) and Aptos DNA 108 (21.25%) achieve higher efficiency at a comparable 415 Wp power rating, suggesting this Q-Cells series is now near the lower competitive bound for efficiency in this segment.
The module is monofacial only, while several competing series in this power class offer bifacial variants that can boost energy yield by several percent when mounted over reflective ground or elevated racking.
- 20.1% module efficiency - 0.7pp better than the PERC 0-400W median of 19.4%
- 201.2 W/m² power density - 6.8 W/m² more than PERC 0-400W median (194.4 W/m²), more power per roof area
- Temperature coefficient of -0.34%/°C matches the PERC 0-400W median
- Weight of 22.0 kg is 1.5 kg above PERC 0-400W median (20.5 kg) - verify structural support
- Ranked #12102 out of 14005 panels for efficiency in the database
Specifications
Datasheet charts
Measured curves published by Q-Cells in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 395 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Found 18 panels of the same or similar size to this one, within ±10 mm. See them here Found 55 panels of the same or similar size to this one, within ±25 mm. See them here Found 105 panels of the same or similar size to this one, within ±50 mm. See them here Found 1934 panels of the same or similar size to this one, within ±100 mm. See them here
About the Q.PEAK DUO BLK ML-G10.a+ SERIES series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.