--- title: "DAH Solar DHN-54R18/DG-455 455W Solar Panel - Specs & Review | ComparePV" description: "DAH Solar DHN-54R18/DG-455 455W solar panel. Specs: 22.29% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dah-dhn-54r18-dg-455" updated: 2026-09-11 --- # DAH Solar DHN-54R18/DG-455 Solid all-round for its segment 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** DAH Solar - **Model:** DHN-54R18/DG-455 - **Series:** DHN-54R18/DG - **Rated power:** 455 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 455 W | 465 W | Typical | | | Module efficiency | 22.29% | 22.52% | Typical | 5,376 | | Power density | 222.9 | 225.2 | Typical | 5,100 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.4 kg | 24.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.29% | 22.52% | Typical | 5,376 | | Power density | 222.9 | 225.2 | Typical | 5,100 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 53.6 | 52.2 | Typical | 7,641 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential and commercial. ## Specification ### Electrical - **Rated power (Pmax):** 455 W - **Efficiency:** 22.29 % - **Voltage at Pmax (Vmp):** 33.70 V - **Current at Pmax (Imp):** 13.50 A - **Open-circuit voltage (Voc):** 39.60 V - **Short-circuit current (Isc):** 14.48 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 1800 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.4 kg - **Area:** 2.04 m2 - **Power density:** 222.9 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 398 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5376 of 14005 | | Power density | 5100 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 7641 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Best-in-Class Efficiency Among Peers** - The series achieves module efficiencies of 22.05–22.78%, outperforming direct competitors: Jinko Solar JS182MHC120 (21.48%) by more than 0.57 percentage points and Vikram Solar SOMERA (20.91%) by nearly 1.87 percentage points. For a given roof area, this translates into meaningfully higher installed capacity without adding extra modules. - **Low Temperature Coefficient of Pmax** - At -0.29%/°C, the N-type TOPCon temperature coefficient is significantly more favorable than that of typical PERC modules (~-0.35%/°C). In Polish climatic conditions, where module temperatures routinely exceed 55°C during summer, this difference results in 1.5–2% higher hourly energy yield compared to PERC modules of equivalent STC power rating. - **Patented Full Screen Technology** - The frameless top edge of the Full Screen design eliminates mechanical accumulation of dust, moss, and water — a phenomenon that DAH Solar research attributes to 2–5% annual energy loss in conventional framed panels. This patented solution is not available from Jinko or Vikram competitors in this power class. - **Bifacial Double Glass — Higher Yield and Durability** - The bifacial construction enables energy generation from the rear side of the module, increasing yield by 5–25% depending on ground albedo (light gravel, roofing membrane, snow). The double-glass configuration eliminates the risk of PID degradation and moisture ingress, directly supporting the 30-year power output warranty. - **30-Year Linear Warranty + BNEF Tier 1** - The manufacturer guarantees ≥87.4% of nominal power after 30 years, while most comparable Tier-1 series offer a 25-year warranty with degradation to ~84.8%. DAH Solar has maintained continuous BNEF Tier 1 status for at least Q1 2025–Q1 2026, as confirmed by BloombergNEF data and manufacturer communications, ensuring full project bankability. ## Cons - **Higher Weight — 24.4 kg (Double Glass)** - The double-glass construction increases module weight to 24.4 kg, compared to the typical 20–21 kg of single-glass PERC modules. For retrofits on existing rooftops or installations on lightweight steel structures, a structural load-bearing assessment is required — particularly for larger systems above 20 kWp. - **Full Screen Mounting Requirements** - The frameless top edge of the Full Screen technology requires compatible mid-clamps with appropriate spacing and is not fully interchangeable with all racking systems available on the market — for example, certain Schletter and K2 systems require adaptation hardware. Installers must verify mounting system compatibility prior to procurement. ## About this series The DAH DHN-54R18/DG solar panel series is a technologically advanced solution based on **N-type TOPCon cells**, which guarantees significantly higher efficiency and minimal degradation over time. The biggest innovation setting these modules apart from the competition is the patented **Full Screen technology**, featuring a frameless top edge that effectively eliminates the accumulation of dust, debris, and water. As a result, system owners avoid energy losses caused by dirt, which in traditional panels can reduce yields by several percent. The use of modern **rectangular R18 cells** allows for maximum utilization of the module surface, offering powerful performance while maintaining compact dimensions. The **bifacial double glass** design further increases mechanical durability and resistance to extreme weather conditions, while simultaneously enabling energy generation from both sides of the panel. It is a solution dedicated primarily to modern prosumer and commercial installations where maintenance-free operation and top efficiency throughout the system's life cycle are priorities. By choosing this series, investors gain confidence in stable yields even at low roof pitch angles, making it unrivaled in terms of cost-effectiveness and ease of maintenance. ## Notable figures - At 22.3% efficiency, this panel is on par with typical \*\*TOPCon 450-500W\*\* modules - At 222.9 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 - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof - Ranked #5376 out of 14005 panels for efficiency in the database ## Questions ### What warranty does the DAH Solar DHN-54R18/DG series carry? The DHN-54R18/DG series is backed by a 25-year product warranty and a 30-year power output warranty. The manufacturer guarantees that after 25 years the module will retain at least 89.4% of its nominal power, and no less than 87.4% after 30 years. This is among the longest power warranties available on the market, reflecting DAH Solar's confidence in the durability of its N-type TOPCon technology and double-glass construction. ### What is the Full Screen technology in DAH Solar DHN-54R18/DG panels and what are its advantages? Full Screen is a patented DAH Solar design featuring a frameless upper edge on the module. This allows rainwater to flow freely across the panel surface without accumulating dust or deposits in the frame corner. In practice, this translates to lower energy losses due to soiling and a reduced need for cleaning — a benefit particularly valued by owners of installations on hard-to-access rooftops. ### Do DAH Solar DHN-54R18/DG panels perform well in low-irradiance conditions and during winter? Yes. N-type TOPCon technology features a low power temperature coefficient of just -0.29%/°C, which means reduced losses on hot days and reliable performance during cooler months. The bifacial cells additionally harvest diffuse light reflected from snow or bright surfaces, improving energy yield under conditions typical of the Polish climate. ### What is the power output and efficiency of DAH Solar DHN-54R18/DG panels? Peak module power in this series reaches up to 465 Wp, with an efficiency of 22.78%. This is achieved through rectangular R18 cells and TOPCon technology, which generates more than 3% additional energy per watt compared to conventional PERC. Module dimensions are 1800 × 1134 × 30 mm and the weight is approximately 24.4 kg, which is standard for modules in this power class. ### Is the DAH Solar DHN-54R18/DG series bifacial, and what does that mean for the system owner? Yes, DHN-54R18/DG modules are bifacial panels in a double-glass construction. The rear side of the panel can generate additional energy from irradiance reflected off the roof or ground surface. Depending on the albedo of the substrate, bifaciality increases annual energy yield by 5–25%. The all-glass enclosure on both sides also provides higher resistance to moisture ingress and mechanical damage compared to conventional backsheet designs. ### Is the DAH Solar DHN-54R18/DG series still available for purchase? The DHN-54R18/DG series has been discontinued by DAH Solar and is officially classified as end-of-life. Distributor stock may be limited to remaining inventory. If you are looking for a new module with comparable specifications, it is worth consulting your dealer about currently produced successors within this manufacturer's N-type TOPCon Full Screen lineup. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/en-dhn-54r18-dg-450-465w-d2c8369f70f1.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +40 W, lighter, +2.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +50 W, cooler, +2.4 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +35 W, lighter, +2.2 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +45 W, cooler, +2.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +45 W, lighter, +2.2 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +45 W, lighter, +2.2 pp | | [DAH Solar DAS-DH108ND-440W](https://comparepv.com/panel/dah-solar-das-dh108nd-440w) | 440 W | -15 W, lighter, -0.7 pp | | [DAH Solar DAS-DH108ND-445W](https://comparepv.com/panel/dah-solar-das-dh108nd-445w) | 445 W | -10 W, lighter, -0.5 pp | | [DAH Solar DHN-54R18/DG-450W](https://comparepv.com/panel/dah-dhn-54r18-dg-450w) | 450 W | -0.2 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +55 W, cooler, +2.7 pp | --- Source: https://comparepv.com/panel/dah-dhn-54r18-dg-455 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.