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DAH Solar Brand review

DHN-60X16/DG(BW)-475W

475 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, needs the roof space

Rank 5,940 of 14,005
Compare panels Datasheet PDF
Power (Wp)
475
Typical for its class
Efficiency (%)
22.01
Weak · bottom 19%
Density (Wp/m²)
220.1
Weak · bottom 18%
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
26.0
Weak · 2.0 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The DAH DHN-60X16/DG 475-490W series has been designed to maximize energy yield on rooftops or on the ground, where every square meter counts. A key advantage is the combination of n-type TOPCon cells with a double glass construction, which translates into improved operational stability and higher resistance to typical installation issues. The modules stand out due to lower degradation and strong protection against PID (Potential Induced Degradation), making it easier to maintain high energy production for subsequent seasons. In addition, their good performance at high temperatures and effective use of diffuse light are beneficial in Polish weather conditions, where cloudy skies are common. This makes them a reasonable choice for installers and investors seeking panels for residential homes, businesses, and modern prosumer projects, where predictability, durability, and cost-effectiveness are key considerations, without incurring additional marketing expenses.

Ranking

1,089 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.01% 22.52% Weak · bottom 19% 6,491
Power density 220.1 225.2 Weak · bottom 18% 6,632
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 54.7 52.2 Weak · bottom 18% 9,139
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 · 4 caution
Best for

Residential, commercial and hot-climate.

Not ideal for

Roofs where every square metre has to count, weight-limited structures and tight roof space.

Watch-outs
220.1 watts per square metre

Bottom 18% of the TOPCon 450-500 W segment, against a median of 225.2.

54.7 kg per kWp

Bottom 18% of the TOPCon 450-500 W segment, against a median of 52.2.

22.01% module efficiency

Bottom 19% of the TOPCon 450-500 W segment, against a median of 22.52%.

What owners get
Temperature coefficient of -0.29%/°C

N-type TOPCon cells lose significantly less power as temperature rises compared to typical PERC modules (-0.35 to -0.40%/°C). The 0.06–0.11 pp/°C difference translates into measurably higher energy yield on hot, sunny days when module temperature exceeds 50–60°C.

30-year power warranty at ≥87.4%

DAH guarantees at least 87.4% of nominal power output after 30 years of operation, with annual degradation ≤0.4% from year 2 onward (year 1 ≤1%). Most comparable Tier-1 models cap their warranty at 25 years; the extended warranty horizon improves the financial performance of both residential prosumer and commercial projects.

~85% bifaciality with double-glass construction

The module's rear surface generates additional yield from reflected irradiance (albedo), particularly valuable in ground-mounted installations and on high-reflectivity surfaces. The double-glass design eliminates the rear backsheet, improving resistance to moisture, ammonia, and mechanical loads compared to standard monofacial modules.

BNEF Tier 1 – confirmed bankability

DAH Solar has continuously appeared on the BNEF Tier 1 list at least since Q1 2025 (confirmed Q1 and Q3 2025). This status is required by the majority of banks and leasing companies when financing PV installations, and is absent from several competitors in this price segment.

Efficiency up to 22.71% – at the top of the 490 Wp segment

The maximum efficiency of 22.71% matches the segment leader among directly comparable models (Renesola RS4-490NX-E1: 22.71%) and exceeds the Horay Solar HS 182-120 TC (22.6%). This allows the same installed capacity to be achieved on a smaller roof area.

Trade-offs
Weight ~26 kg (DG variant)

The double-glass construction raises module weight to approximately 26 kg, compared to ~21–22 kg for typical monofacial modules of equivalent power. On steep-pitch roofs and older mounting structures, a structural load assessment may be required, and single-person installation becomes more difficult.

Notes from the database
  • Efficiency of 22.0% is 0.5pp below the TOPCon 450-500W median (22.5%)
  • Power density of 220.1 W/m² is 5.1 W/m² below TOPCon 450-500W median (225.2 W/m²) - needs more roof space
  • At -0.29%/°C, hot weather performance is typical for TOPCon 450-500W panels
  • At 26.0 kg, this panel is 2.0 kg heavier than the TOPCon 450-500W median (24.0 kg) - more demanding for installation crews
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 475 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.01 % Weak Segment median 22.52%
Vmpp · Impp 36.20 V · 13.12 A Operating point at max power
Voc · Isc 42.60 V · 13.96 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1903×1134×30 mm · 2.16 m² of roof
Weight 26.0 kg Weak Weak · 2.0 kg above median
Cells 120 · 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 415 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 475 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-60X16/DG(BW)-475W 475 W 22.01% -0.290 26.0 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +35 W, cooler, +3.0 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +2.8 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +30 W, cooler, +2.7 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +2.5 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +25 W, cooler, +2.5 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg Cooler, lighter, +2.5 pp
DHT-M60X10-430W 430 W 19.93% -0.350 23.5 kg Hotter, -2.1 pp, -5 yr warranty
DHT-M60X10-435W 435 W 20.16% -0.350 23.5 kg Hotter, -1.9 pp, -5 yr warranty
DHM-60X10/FS(BB)-440W 440 W 20.39% -0.350 23.8 kg Hotter, -1.6 pp, -5 yr warranty
DHM-60X10/FS(BW)-445W 445 W 20.62% -0.350 23.8 kg Hotter, -1.4 pp, -5 yr warranty
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +85 W, cooler, +2.8 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +80 W, cooler, +2.6 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg +75 W, lighter, +2.4 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg +65 W, cooler, +2.4 pp
GK-5-60HG-540M 540 W 24.40% -0.260 23.3 kg +65 W, cooler, +2.4 pp
JKM545-54QL6-DV-F1-EU 545 W 24.27% -0.260 27.5 kg +70 W, cooler, +2.3 pp

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Common questions

6 answered
What warranty is provided for the DAH Solar DHN-60X16/DG 475–490W series?
The DHN-60X16/DG series is backed by a 25-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. The degradation terms are highly favorable: no more than 1% power loss in the first year and a maximum of 0.4% per year thereafter. After 30 years, the module is guaranteed to retain at least 87.4% of its nominal power output, making this series exceptionally cost-effective over a long investment horizon.
What is TOPCon technology and why does it matter in the DAH Solar DHN-60X16/DG modules?
TOPCon (Tunnel Oxide Passivated Contact) is a next-generation n-type cell technology that delivers higher efficiency — up to 22.71% for this series — and a lower degradation rate compared to conventional PERC cells. In practical terms, this translates to greater energy yield from the same roof area and improved long-term performance stability throughout the full 30-year power warranty period. DAH Solar reports an energy production gain of more than 3% relative to PERC modules of equivalent nominal power.
Are the DAH Solar DHN-60X16/DG 490W modules bifacial, and does that make sense for installations in Poland?
Yes, the DHN-60X16/DG series features bifacial construction with a bifaciality factor of up to 85%, meaning the rear glass surface also generates power from reflected irradiance. In Poland, bifacial gain is most relevant for ground-mounted systems installed above high-albedo surfaces such as gravel, concrete, or snow cover in winter, as well as flat-roof installations with adequate rear clearance. On conventional pitched roofs, the bifacial yield gain is marginal; however, the double-glass construction itself enhances module durability and longevity regardless of mounting orientation.
How do the DAH Solar DHN-60X16/DG 475–490W modules perform under Polish weather conditions, particularly in overcast conditions?
The n-type TOPCon cells feature a low temperature coefficient of power at -0.29%/°C, resulting in smaller thermal losses during hot weather compared to older PERC modules. Additionally, this cell technology exhibits superior conversion of diffuse irradiance, which is prevalent in the Polish climate. The practical outcome is meaningfully better energy yields in spring, autumn, and under overcast skies — conditions that account for a significant portion of the year in Poland, where clear-sky days are relatively scarce.
What are the dimensions and weight of the DAH Solar DHN-60X16/DG modules, and will they fit on a small roof?
The modules measure 1903 × 1134 × 30 mm and weigh approximately 26 kg. The 30 mm frame depth results from the double-glass construction. When planning an installation on a small roof, note that each panel occupies approximately 2.16 m². For a typical single-family home with a 10 kW system, around 20–21 panels are required, covering approximately 43–45 m² of roof surface.
Is the DAH Solar DHN-60X16/DG series resistant to PID, and does that matter for high-voltage systems?
Yes, the manufacturer declares excellent resistance to PID (Potential Induced Degradation). PID is a particular concern in large string systems operating at high system voltages, where it can cause permanent power losses of up to several percent. The combination of PID resistance, n-type TOPCon cell technology, and double-glass construction makes the DHN-60X16/DG series well suited for both residential installations and larger commercial projects, without the risk of accelerated voltage-induced degradation over the system's lifetime.
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