--- title: "DAH Solar DHN-54Z16/DG-480 480W Solar Panel - Specs & Review | ComparePV" description: "DAH Solar DHN-54Z16/DG-480 480W solar panel. Specs: 21.57% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dah-dhn-54z16-dg-480" updated: 2026-09-11 --- # DAH Solar DHN-54Z16/DG-480 Middle of its segment, needs the roof space 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** DAH Solar - **Model:** DHN-54Z16/DG-480 - **Series:** DHN-54Z16/DG - **Rated power:** 480 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) | 480 W | 465 W | Typical | | | Module efficiency | 21.57% | 22.52% | Weak - bottom 8% | 7,734 | | Power density | 215.7 | 225.2 | Weak - bottom 7% | 7,637 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 26.6 kg | 24.0 kg | Weak - bottom 13% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.57% | 22.52% | Weak - bottom 8% | 7,734 | | Power density | 215.7 | 225.2 | Weak - bottom 7% | 7,637 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 55.4 | 52.2 | Weak - bottom 13% | 9,847 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **215.7 watts per square metre** - Bottom 7% of the TOPCon 450-500 W segment, against a median of 225.2. Ranked 7,637th in the whole database. - **21.57% module efficiency** - Bottom 8% of the TOPCon 450-500 W segment, against a median of 22.52%. Ranked 7,734th in the whole database. - **55.4 kg per kWp** - Bottom 13% of the TOPCon 450-500 W segment, against a median of 52.2. - **Best for:** Residential and commercial. - **Not ideal for:** Roofs where every square metre has to count, tight roof space and weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 480 W - **Efficiency:** 21.57 % - **Voltage at Pmax (Vmp):** 33.10 V - **Current at Pmax (Imp):** 14.50 A - **Open-circuit voltage (Voc):** 39.10 V - **Short-circuit current (Isc):** 15.46 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:** 1962 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 26.6 kg - **Area:** 2.22 m2 - **Power density:** 215.7 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:** 420 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7734 of 14005 | | Power density | 7637 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 9847 of 14005 | | Warranty | 21 of 14005 | ## Pros - **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. ## Cons - **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. ## About this series 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. ## Notable figures - At 21.6% efficiency, this panel is 0.9pp below the \*\*TOPCon 450-500W\*\* median of 22.5% - Power density of 215.7 W/m² is 9.5 W/m² below \*\*TOPCon 450-500W\*\* median (225.2 W/m²) - needs more roof space - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 450-500W\*\* median - At 26.6 kg (2.6 kg above \*\*TOPCon 450-500W\*\* median of 24.0 kg), requires checking roof load capacity - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### 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. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/en-dhn-54z16-dg-480-510w-d8850c4a5635.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +3.4 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +3.2 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +3.1 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +2.9 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +2.9 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, lighter, +2.9 pp | | [DAH Solar DHN-54Z20/DG(BW)-485](https://comparepv.com/panel/dah-dhn-54z20-dg-bw-485) | 485 W | +0.2 pp | | [DAH Solar DHN-54Z20/DG(BW)-490](https://comparepv.com/panel/dah-dhn-54z20-dg-bw-490) | 490 W | +10 W, +0.4 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +80 W, cooler, +3.2 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +75 W, cooler, +3.0 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +70 W, lighter, +2.8 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +60 W, lighter, +2.8 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +60 W, lighter, +2.8 pp | | [Jinko Solar JKM545-54QL6-DV-F1-EU](https://comparepv.com/panel/jinko-solar-jkm545-54ql6-dv-f1-eu) | 545 W | +65 W, cooler, +2.7 pp | | [Longi Solar LR7-60HVH-545M](https://comparepv.com/panel/longi-lr7-60hvh-545m) | 545 W | +65 W, cooler, +2.6 pp | --- Source: https://comparepv.com/panel/dah-dhn-54z16-dg-480 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.