--- title: "DAS Solar DAS-DH120ND-505W 505W Solar Panel - Specs & Review | ComparePV" description: "DAS Solar DAS-DH120ND-505W 505W solar panel. Specs: 22.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/das-solar-das-dh120nd-505w" updated: 2026-09-11 --- # DAS Solar DAS-DH120ND-505W Strong in heat, heavy for its output 432 panels in the segment TOPCon 500-550 W ## Identity - **Manufacturer:** DAS Solar - **Model:** DAS-DH120ND-505W - **Series:** DAS-DH120ND - **Rated power:** 505 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 500-550 W (432 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 505 W | 510 W | Typical | | | Module efficiency | 22.30% | 22.73% | Weak - bottom 21% | 5,100 | | Power density | 223.3 | 227.4 | Weak - bottom 23% | 5,028 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 10% | 1,309 | | Weight (kg) | 27.5 kg | 27.0 kg | Weak - bottom 19% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.30% | 22.73% | Weak - bottom 21% | 5,100 | | Power density | 223.3 | 227.4 | Weak - bottom 23% | 5,028 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 10% | 1,309 | | Weight per kWp | 54.5 | 52.4 | Weak - bottom 19% | 8,802 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **-0.280 %/°C temperature coefficient** - Top 10% of the TOPCon 500-550 W segment, against a median of -0.290. Ranked 1,309th in the whole database. ### Watch out for - **54.5 kg per kWp** - Bottom 19% of the TOPCon 500-550 W segment, against a median of 52.4. - **22.30% module efficiency** - Bottom 21% of the TOPCon 500-550 W segment, against a median of 22.73%. - **223.3 watts per square metre** - Bottom 23% of the TOPCon 500-550 W segment, against a median of 227.4. - **Best for:** Residential, commercial and cold-climate. - **Not ideal for:** Weight-limited structures, tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 505 W - **Efficiency:** 22.30 % - **Voltage at Pmax (Vmp):** 36.13 V - **Current at Pmax (Imp):** 13.98 A - **Open-circuit voltage (Voc):** 43.30 V - **Short-circuit current (Isc):** 14.72 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.280 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Bifacial:** yes - **Bifacial gain:** 30.00 ### Physical - **Length:** 1994 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 27.5 kg - **Area:** 2.26 m2 - **Power density:** 223.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 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:** 441 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5100 of 14005 | | Power density | 5028 of 14005 | | Temperature coefficient | 1309 of 14005 | | Weight | 8802 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Superior Temperature Coefficient vs. TOPCon** - HJT technology delivers a Voc temperature coefficient of -0.250%/°C, while competing TOPCon modules (Huasun Aurora Pro, Sunpro TOPCon 210R, Canadian Solar TOPBiHiKu6) typically reach -0.30%/°C. In climates with hot summers, this translates into measurably higher energy yield at peak season. - **Low Annual Degradation Inherent to HJT Technology** - HJT cells degrade at ~0.25–0.30%/year versus ~0.40%/year for TOPCon, resulting in approximately 3–4% higher cumulative energy yield over a 30-year project lifetime. The manufacturer's 30-year power warranty is consistent with these technology-level performance parameters. - **Premium-Grade Mechanical Resistance** - The dual-glass construction (2×2.0 mm tempered glass) withstands snow loads up to 5,400 Pa and wind loads up to 2,400 Pa — exceeding the IEC baseline of 2,400 Pa / 2,400 Pa. This is a meaningful advantage in regions where heavy snow accumulation poses a real structural risk. - **Confirmed Bankability — BNEF Tier 1 for Four Consecutive Quarters** - DAS Solar achieved BNEF Tier 1 status for four consecutive quarters in 2025, meaning six independent banks have financed projects using their modules. For commercial investors and prosumers relying on external financing, this is a key credibility indicator for a manufacturer founded in 2018. - **Bifacial + 1500 V System Compatibility + Full-Black Aesthetics** - The symmetric bifacial design enables rear-side albedo harvesting (manufacturer-declared gain of up to +30% vs. monofacial under suitable mounting conditions). Compatibility with 1500 V systems simplifies the electrical design of commercial installations above 100 kWp, while the All-Black Pro aesthetic meets the premium requirements of BIPV and residential rooftop segments. ## Cons - **Lower Efficiency vs. Leading Competitors** - The series peaks at 22.8% module efficiency, while comparably priced alternatives — the Huasun Aurora Pro RS490–515S8R and Sunpro TOPCon 210R — reach 23.17%, a gap of ~0.37 percentage points. On a fixed roof area, this equates to approximately 1.6% less installed capacity per m², which may be a decisive factor on space-constrained rooftops. - **Higher Unit Cost of HJT Technology** - HJT modules are priced at ~$0.38–0.50/W at wholesale, compared to $0.28–0.35/W for TOPCon (2025 market data), representing a price premium of roughly 10–20% over comparable-wattage offerings from Huasun, Sunpro, or Canadian Solar TOPBiHiKu6. The premium is partially justified by the superior temperature coefficient and lower degradation rate, but must be validated against a project-specific ROI calculation. - **Higher Module Weight (27.5 kg)** - The dual-glass construction increases module weight to 27.5 kg, compared to 22–24 kg typical of single-glass TOPCon modules in the same power class. On large rooftop installations, this may require a structural load assessment or the use of higher-rated — and more costly — racking systems. ## About this series The **DAS Solar DAS-DH120ND Black Pro** series is a range of photovoltaic panels based on advanced **HJT (Heterojunction Technology)** with N-type cells - one of the most efficient and reliable technologies currently available on the market. The **bifacial dual glass** design allows for the absorption of solar radiation from both the front and back sides, which, under optimal conditions, can result in up to 30% higher energy generation compared to conventional monofacial panels. The double-tempered glass provides exceptional mechanical strength - the modules can withstand snow loads up to 5400 Pa and wind loads up to 2400 Pa, making them an ideal choice for challenging weather conditions typical in Poland. The elegant, **fully black Black Pro** aesthetic makes this series ideal for roof-mounted installations, where both performance and visual appeal are important. The modules are compatible with 1500 V systems, simplifying the design of large-scale installations. The **30-year performance warranty** and 15-year product warranty confirm the high quality of manufacture. The DAS-DH120ND series is a choice for demanding individual customers, installers, and investors undertaking commercial projects. ## Notable figures - At 22.3% efficiency, this panel is on par with typical \*\*TOPCon 500-550W\*\* modules - 223.3 W/m² power density is 4.1 W/m² below \*\*TOPCon 500-550W\*\* median (227.4 W/m²) - requires larger installation area - At -0.28%/°C, hot weather performance is typical for \*\*TOPCon 500-550W\*\* panels - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof - #5100 for efficiency, #1309 for temperature performance out of 14005 panels ## Questions ### How does the HJT technology in DAS Solar DAS-DH120ND panels differ from standard monocrystalline PERC cells? HJT (Heterojunction Technology) cells combine a crystalline silicon layer with thin-film amorphous silicon, achieving module efficiencies of up to 22.8% — well above the typical 20–21% of PERC panels. The N-type cells used in the DAS-DH120ND series also feature a lower temperature coefficient, which means reduced power losses on hot days, as well as inherent resistance to LID (Light Induced Degradation). The net result is higher annual energy yield from the same roof area compared to equivalent PERC technology. ### How much additional energy does the DAS-DH120ND Black Pro panel generate thanks to its bifacial design? The dual-glass bifacial construction allows the panel to capture albedo irradiance reflected from the surface beneath via its rear side. Under favorable conditions — a light-colored ground surface, ground-mounted installation, or a light-colored roof — this translates to up to 30% higher energy generation compared to a conventional monofacial panel of the same nominal power rating. In a typical rooftop installation over dark roofing tiles, the realistic bifacial gain is 5–15%. ### Will DAS Solar DAS-DH120ND Black Pro panels withstand Polish winters and heavy snow loads? Yes. The DAS-DH120ND series uses a dual-glass construction consisting of two layers of tempered glass (2.0 mm + 2.0 mm), providing resistance to snow loads of up to 5,400 Pa and wind pressure of up to 2,400 Pa. These values significantly exceed the structural requirements for the vast majority of locations in Poland. The dual-glass design also offers superior resistance to moisture ingress and mechanical damage compared to standard backsheet-based panels. ### What warranty does DAS Solar offer for the DAS-DH120ND series, and what exactly does it cover? The manufacturer provides a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. The power warranty guarantees that after 30 years the panel will retain at least the manufacturer-specified percentage of its nominal power output. DAS Solar is a Tier 1 manufacturer, a classification that reflects the company's financial stability and its credible capacity to honor long-term warranty commitments. ### Are the DAS-DH120ND Black Pro panels compatible with 1500 V inverters and systems used by typical Polish installers? Yes. The DAS-DH120ND series is certified for operation in 1500 V DC systems, which is the current standard in commercial installations and increasingly common in large prosumer systems. Compatibility with 1500 V allows longer strings to be configured, reducing cable runs and simplifying system design. The panels are compatible with inverters from leading manufacturers — including Fronius, SMA, Huawei, and SolarEdge — that support this voltage class. ### How much does a DAS Solar DAS-DH120ND panel weigh, and will a typical roof structure support the installation? A single DAS-DH120ND module weighs approximately 27.5 kg and has dimensions of 1,994 × 1,134 × 30 mm. This is somewhat heavier than lighter 60-cell panels, so a structural assessment of the roof's load-bearing capacity is recommended prior to installation, particularly for older buildings. Standard steel or aluminum mounting systems handle this weight without issue; the critical factor is the load capacity of the rafters and the underlying roof structure. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/DAS-DH120ND-EN-490-515Black_Pro-cb9768f9082b.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +2.7 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +2.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +2.4 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +50 W, lighter, +2.3 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +2.2 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +2.2 pp | | [DAS Solar DAS-DH120ND-490W](https://comparepv.com/panel/das-solar-das-dh120nd-490w) | 490 W | -15 W, -0.6 pp | | [DAS Solar DAS-DH120ND-495W](https://comparepv.com/panel/das-solar-das-dh120nd-495w) | 495 W | -10 W, -0.4 pp | | [DAS Solar DAS-DH120ND-500W](https://comparepv.com/panel/das-solar-das-dh120nd-500w) | 500 W | Very close match | | [DAS Solar DAS-DH120ND-510W](https://comparepv.com/panel/das-solar-das-dh120nd-510w) | 510 W | +0.3 pp | | [DAS Solar DAS-DH120ND-515W](https://comparepv.com/panel/das-solar-das-dh120nd-515w) | 515 W | +10 W, +0.5 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +55 W, lighter, +2.5 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +45 W, lighter, +2.1 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +35 W, lighter, +2.1 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +35 W, lighter, +2.1 pp | | [Jinko Solar JKM545-54QL6-DV-F1-EU](https://comparepv.com/panel/jinko-solar-jkm545-54ql6-dv-f1-eu) | 545 W | +40 W, cooler, +2.0 pp | --- Source: https://comparepv.com/panel/das-solar-das-dh120nd-505w 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.