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DAH Solar Brand review

DHN-54Z16/DG-495

495 Wp TOPCon Bifacial 80%
ComparePV verdict

Solid all-round for its segment

Rank 4,976 of 14,005
Compare panels Datasheet PDF
Power (Wp)
495
Strong · top 4%
Efficiency (%)
22.25
Typical · median 22.52%
Density (Wp/m²)
222.5
Typical · median 225.2
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
26.6
Typical · median 24.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The DAH DHN-54Z16/DG series is a breakthrough solution in the photovoltaic market that eliminates one of the biggest operational problems - the accumulation of contaminants on the module edges. The patented Full Screen technology applied here makes the front glass perfectly flush with the frame, allowing water to flow freely and facilitating the self-cleaning of dust and dirt during rainfall. Thanks to the use of modern N-type TOPCon cells, the panels are characterized by higher efficiency and significantly slower power degradation over time compared to standard solutions. The bifacial Double Glass construction increases mechanical resistance and guarantees excellent performance in harsh environmental conditions, making this series an ideal choice for investors who value durability and long-term maintenance-free operation. These modules effectively solve the problem of energy losses resulting from the phenomenon of edge shading, which directly translates into higher yields from domestic and industrial installations. Choosing this series is an investment in innovation that stands out from the competition with its unique frame structure, realistically reducing service and cleaning costs. These panels perform exceptionally well especially on roofs with a low pitch angle, where traditional frame systems trap sediment that limits the efficiency of the entire system.

Ranking

1,089 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.25% 22.52% Typical 5,689
Power density 222.5 225.2 Typical 5,700
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 53.7 52.2 Typical 7,768
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 2 caution
Best for

Residential and commercial.

What owners get
Patented Full Screen Technology

Flush-mounting the front glass to the frame eliminates the gap that traps dust and water, reducing soiling-related energy losses by 6–15% compared to conventionally framed modules. The benefit is especially significant on rooftops with tilt angles below 15°, where self-cleaning in standard modules is virtually nonexistent.

22.92% Efficiency at the Top of the Segment

A peak efficiency of 22.92% places the series directly alongside the Sunlike Solar SKT490~510M12-108D4 (22.93%) and just behind the JA Solar JAM60S40 LR (23.00%), while clearly outperforming the Trina Solar Vertex (21.2%). The gap to the segment leader is only 0.08 percentage points — effectively negligible under real installation conditions.

30-Year Linear Power Warranty

The manufacturer guarantees at least 87.4% of nominal power output after 30 years of operation. Most competitors — including Trina Solar and JA Solar in their standard series — offer linear warranties that expire after 25 years; DAH extends this horizon by 5 years at no additional cost.

Up to 85% Bifaciality — Real Rear-Side Energy Gains

The Double Glass construction with ~85% bifaciality delivers an additional 5–25% energy yield from the rear surface of the module, depending on ground albedo and system geometry. Double Glass modules also exhibit significantly lower PID degradation risk and greater resistance to moisture and UV radiation than backsheet-based counterparts.

BNEF Tier 1 + TOP SOLAR MODULES Top 10

DAH Solar has maintained BNEF Tier 1 status continuously since at least Q1 2025 (confirmed through Q3 2025), ensuring project bankability and acceptance by project finance lenders. In September 2025, the Full Screen series ranked 9th in the TOP SOLAR MODULES ranking — an independent third-party validation of product quality.

Trade-offs
Higher Module Weight: 26.6 kg

The Double Glass construction (two glass panes, 2+2 mm) increases module weight to 26.6 kg, compared to ~21–23 kg for a typical monofacial backsheet module of equivalent power. On rooftops with limited structural load capacity, this may require a structural engineering assessment or roof reinforcement.

Frameless Design Requires Dedicated Mounting Hardware

The Full Screen technology (no conventional front frame) requires clamps compatible with the Double Glass profile and may be incompatible with some popular racking systems designed for framed modules. Installers must confirm hardware compatibility before placing an order.

Notes from the database
  • Efficiency of 22.2% matches the TOPCon 450-500W median
  • At 222.5 W/m² power density, roof space requirements are typical for TOPCon 450-500W panels
  • At -0.29%/°C, hot weather performance is typical for TOPCon 450-500W panels
  • At 26.6 kg (2.6 kg above TOPCon 450-500W median of 24.0 kg), requires checking roof load capacity
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 495 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.25 % Typical Segment median 22.52%
Vmpp · Impp 33.70 V · 14.69 A Operating point at max power
Voc · Isc 39.70 V · 15.64 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1962×1134×30 mm · 2.22 m² of roof
Weight 26.6 kg Typical Typical · median 24.0 kg
Cells 108 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 433 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

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 495 Wp appear here. The rest cover the whole series.

30-Year Linear Power Output Warranty 30-Year Linear Power Output Warranty Whole series

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.290 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
DAH Solar DHN-54Z16/DG-495 495 W 22.25% -0.290 26.6 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +2.8 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +2.6 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +2.4 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +2.2 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +2.2 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg Cooler, lighter, +2.2 pp
DHN-54Z20/DG(BW)-480 480 W 21.57% -0.290 26.6 kg -15 W, -0.7 pp
DHN-54Z20/DG(BW)-485 485 W 21.80% -0.290 26.6 kg -10 W, -0.4 pp
DHN-54Z20/DG(BW)-490 490 W 22.02% -0.290 26.6 kg -0.2 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +65 W, cooler, +2.6 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +60 W, cooler, +2.4 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg +55 W, lighter, +2.1 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg +45 W, lighter, +2.1 pp
GK-5-60HG-540M 540 W 24.40% -0.260 23.3 kg +45 W, lighter, +2.1 pp
JKM545-54QL6-DV-F1-EU 545 W 24.27% -0.260 27.5 kg +50 W, cooler, +2.0 pp
LR7-60HVH-545M 545 W 24.20% -0.260 25.0 kg +50 W, cooler, +1.9 pp

Found 471 panels of the same or similar size to this one, within ±10 mm. See them here Found 505 panels of the same or similar size to this one, within ±25 mm. See them here Found 657 panels of the same or similar size to this one, within ±50 mm. See them here Found 1471 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Why are DAH Solar DHN-54Z16/DG panels recommended for low-pitch roofs?
The DHN-54Z16/DG series features DAH Solar's patented Full Screen technology, in which the front glass is flush with the module frame. This allows rainwater to flow freely across the entire panel surface, self-cleaning dust and particulate matter without residue accumulating in frame corners. This is a critical advantage on flat and low-pitch roofs, where conventional framed panels tend to collect soiling that reduces energy yield over time.
What warranty does the DAH Solar DHN-54Z16/DG series carry and what does it cover?
The manufacturer provides a 25-year product warranty covering material and workmanship defects. In addition, a 30-year linear power output warranty guarantees that the module will maintain output above a defined threshold — typically approximately 87.4% of nominal power after 30 years. DAH Solar holds Tier 1 manufacturer status, which confirms the company's financial stability and the credibility of its long-term warranty commitments.
What are N-type TOPCon cells and why should you choose them over standard PERC panels?
The N-type TOPCon cells used in the DHN-54Z16/DG series deliver higher conversion efficiency and significantly lower power degradation over time compared to widely deployed PERC cells. In practice, this translates into greater energy production across the full system lifetime and better performance retention at elevated operating temperatures. By choosing TOPCon, the investor achieves a higher annual energy yield without paying the premium associated with heterojunction (HJT) technology.
Are the DHN-54Z16/DG panels bifacial, and how much additional energy can be harvested from the rear side?
Yes, the DHN-54Z16/DG series consists of bifacial modules with a Double Glass (glass-glass) construction. The rear side of the panel captures irradiance reflected from the ground or roof surface, with a bifaciality factor of up to 85%. Depending on substrate albedo and installation conditions, this translates into 5–25% additional energy from the rear surface of the module. The double-glass construction simultaneously enhances mechanical durability and eliminates the risk of potential-induced degradation (PID).
What snow and wind loads can the DAH Solar DHN-54Z16/DG panels withstand?
The DHN-54Z16/DG Double Glass modules are certified for a snow load of up to 5,400 Pa and a wind load of up to 2,400 Pa. This makes them well suited to Polish climatic conditions, including mountainous regions and coastal areas where panels are exposed to heavy snowfall or strong wind gusts. The modules are compatible with system voltages up to 1,500 V DC.
How much does the DAH Solar DHN-54Z16/DG 510 W panel weigh, and will a standard roof structure support it?
The DHN-54Z16/DG module rated at 510 Wp weighs approximately 26.6 kg and measures 1,962 × 1,134 × 30 mm. The Double Glass construction is heavier than single-glass equivalents, so it is advisable to commission a simplified structural load assessment — particularly for older buildings — before installation. Most standard gable roofs with adequate rafter spacing can handle this weight without issue; the installer should verify this during the design phase.
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