Space saver, no clear weak spot
The DAH DHN-54X16/DG series was designed to maximize energy yields in real-world operating conditions - not just in the lab. These are double-glass modules with N-type TOPCon cells, which provide high parameter stability and excellent resistance to degradation and PID effects. This translates to more predictable energy production over the long term, especially in installations designed for predictable performance and low risk of yield losses.
Another key feature of the series is the bifacial design - the module can utilize reflected light from the ground, which can significantly increase energy yield in locations where every kilowatt-hour counts, such as on flat roofs, carports, or surfaces with light-colored surfaces. An additional advantage is the Full-Screen technology, which helps to prevent water and dust accumulation on the edges, reducing power losses and the need for frequent cleaning. This series is ideal for investors and installers who want to combine aesthetics, durability, and real production growth in demanding locations.
Ranking
Signals from the data
Residential, commercial, shaded-installations and hot-climate.
Top 17% of the TOPCon 400-450 W segment, against a median of 220.2.
Top 24% of the TOPCon 400-450 W segment, against a median of 22.00%.
The Pmax temperature coefficient is -0.29%/°C, which is significantly better than typical PERC modules (-0.35%/°C). Under summer operating conditions with modules heated to ~70°C, this translates to approximately 3% higher energy yield compared to previous-generation technology.
The manufacturer guarantees ≥89.4% of nominal power output after 25 years and ≥87.4% after 30 years, with degradation ≤0.4%/year following the first year. Peer comparables in the segment (KDM, Lina Energy) typically offer a standard 25-year warranty, making this series more financially attractive over a long-term investment horizon.
Full-Screen technology eliminates the front frame, enabling self-cleaning of dust through rainfall. An independent field test by TÜV Nord confirmed an 11.5% increase in energy production compared to standard framed modules, with a direct impact on annual energy yield in low-tilt installations.
N-type TOPCon technology virtually eliminates Light Induced Degradation (LID) characteristic of P-type PERC cells. Declared degradation is ≤1% in the first year and ≤0.4%/year over the subsequent 29 years, resulting in higher cumulative energy yield across the full system lifetime.
DAH Solar has maintained Tier 1 status per BloombergNEF continuously throughout 2025 (confirmed Q1–Q4 2025), which is a key bankability criterion for PV project financing and insurer requirements. The manufacturer has been operating since 2009, ensuring long-term service and warranty continuity.
The maximum module efficiency of this series is 22.53%, while the Luxor Solar ECO LINE N-TYPE TOPCON NON-REFLECT in the same power class (440 Wp) achieves 22.86% — a gap of 0.33 percentage points. On roof space-constrained installations, this translates to approximately 1.5% fewer modules for the same peak power output, or slightly lower peak power with an identical module count.
- Efficiency of 22.3% matches the TOPCon 400-450W median
- Power density of 222.8 W/m² matches the TOPCon 400-450W median
- At -0.29%/°C, hot weather performance is typical for TOPCon 400-450W panels
- Weight of 23.5 kg is 1.5 kg above TOPCon 400-450W median (22.0 kg) - verify structural support
- 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
Specifications
Datasheet charts
Measured curves published by DAH Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 435 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
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