--- title: "DAS Solar DAS-DH108NA-445W 445W Solar Panel - Specs & Review | ComparePV" description: "DAS Solar DAS-DH108NA-445W 445W solar panel. Specs: 22.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/das-solar-das-dh108na-445w" updated: 2026-09-11 --- # DAS Solar DAS-DH108NA-445W Efficiency leader, no clear weak spot 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** DAS Solar - **Model:** DAS-DH108NA-445W - **Series:** DAS-DH108NA - **Rated power:** 445 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 445 W | 435 W | Strong - top 8% | | | Module efficiency | 22.80% | 22.00% | Strong - top 1% | 2,714 | | Power density | 227.9 | 220.2 | Strong - top 2% | 2,790 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 20.5 kg | 22.0 kg | Strong - top 6% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.80% | 22.00% | Strong - top 1% | 2,714 | | Power density | 227.9 | 220.2 | Strong - top 2% | 2,790 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 46.1 | 51.4 | Strong - top 6% | 972 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **22.80% module efficiency** - Top 1% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 2,714th in the whole database. - **227.9 watts per square metre** - Top 2% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 2,790th in the whole database. - **46.1 kg per kWp** - Top 6% of the TOPCon 400-450 W segment, against a median of 51.4. Ranked 972nd in the whole database. - **Best for:** Residential, commercial, cold-climate and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 445 W - **Efficiency:** 22.80 % - **Voltage at Pmax (Vmp):** 33.51 V - **Current at Pmax (Imp):** 13.28 A - **Open-circuit voltage (Voc):** 39.12 V - **Short-circuit current (Isc):** 14.03 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/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:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 20.5 kg - **Area:** 1.95 m2 - **Power density:** 227.9 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:** 389 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2714 of 14005 | | Power density | 2790 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 972 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Temperature Coefficient Pmax -0.30%/°C** - The -0.30%/°C temperature coefficient outperforms a typical PERC module (-0.34%/°C), translating into measurably higher energy yield during summer months — at a module temperature of 70°C, power loss is approximately 12% versus ~14.4% for PERC. N-type TOPCon cells also eliminate Light-Induced Degradation (LID), a phenomenon that can reduce output by 1–3% in P-type modules within the first weeks of operation. - **30-Year Linear Power Warranty** - The manufacturer guarantees degradation of ≤1% in year one and ≤0.4%/year from year two onward, ensuring ≥87.4% of rated output after 30 years. Peer comparables — Luxen LUXPOWER N5, ZNShine ZXM7-UHLDD108, and Solitek SOLID Blackstar — offer the same 435 Wp power class; the segment standard is 25–30 years, and DAS Solar sits at the upper end of that range. - **Up to 22.3% Efficiency — Top of the 108-Cell Segment** - The 435 Wp variant achieves 22.3% module efficiency, edging out direct peers: Luxen N5 and ZNShine ZXM7-UHLDD108 (both at 22.28%) and Solitek SOLID Blackstar (22.27%). SMBB (Super Multi Busbar) technology reduces series resistance and minimizes hot spot formation, helping sustain efficiency over the long-term operational horizon. - **Bifacial Double-Glass Construction with Full Certification Suite** - The dual-glass design (1.6 mm + 1.6 mm) with bifaciality up to 80% increases energy yield in ground-mounted systems by 5–15% compared to monofacial modules. The module carries IEC 61215, IEC 61730, IEC 61701 (salt mist corrosion resistance), and IEC 62716 (ammonia resistance) certifications, along with an IP68-rated connector and 3 bypass diodes — a complete compliance package for deployment in harsh environments. - **BNEF Tier 1 Status — Bankability Confirmed** - DAS Solar appears on the BNEF Tier 1 PV Module Manufacturers list (confirmed at least through Q2 2025), meaning the manufacturer has independently financed at least six projects exceeding 10 MW within a 24-month period. Tier 1 status is a standard requirement for project finance on utility-scale PV farms and reduces the perceived investment risk compared to manufacturers outside the ranking. ## Cons - **Limited Brand Track Record Relative to Warranty Horizon** - DAS Solar has been operating since August 2018 — only 7–8 years in the market against the 30-year power warranty it provides. By comparison, Trina Solar was founded in 1997 and JA Solar in 2005. Institutional risk is partially mitigated by BNEF Tier 1 status and the backing of strategic investors (China Merchants, Three Gorges Capital); however, investors requiring a complete manufacturer financial history may need to conduct additional due diligence. ## About this series The DAS-DH108NA photovoltaic module series redefines efficiency standards thanks to the use of breakthrough N-type TOPCon cell technology. The **bifacial double glass** construction ensures that these panels absorb not only direct light but also energy reflected from the ground, which significantly increases real yields in ground-mounted and rooftop installations. The use of N-type cells eliminates the common problem of light-induced degradation, offering **minimal power loss over time**, translating into a longer lifespan for the entire installation. This series stands out from the competition with its excellent performance under low irradiance, allowing for power generation even on cloudy days. Thanks to the use of **SMBB technology**, these modules conduct current better and are less prone to the formation of harmful hot spots. It is an ideal solution for demanding residential users and commercial investors who want to maximize profits from every square meter of surface area. The solid, double-glass housing guarantees **exceptional mechanical resistance** to snow and wind loads, ensuring peace of mind for decades of operation. By choosing DAS-DH108NA, the investor opts for the highest build quality that effectively competes with premium segment brands, while offering **unrivaled temperature stability** during summer heatwaves. ## Notable figures - 22.8% module efficiency - 0.8pp better than the \*\*TOPCon 400-450W\*\* median of 22.0% - 227.9 W/m² power density - 7.7 W/m² more than \*\*TOPCon 400-450W\*\* median (220.2 W/m²), more power per roof area - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 400-450W\*\* median - 20.5 kg weight - 1.5 kg lighter than \*\*TOPCon 400-450W\*\* median (22.0 kg), reducing installation effort - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces ## Questions ### What warranty is offered on the DAS Solar DAS-DH108NA panels? The DAS-DH108NA series comes with a 25-year product warranty covering materials and workmanship, along with a 30-year linear power output warranty. Thanks to N-type TOPCon cell technology, degradation rates are exceptionally low: the manufacturer guarantees a maximum power loss of 1% in the first year and just 0.40% per year in subsequent years. This is one of the best degradation profiles available in its price category. ### Do the DAS-DH108NA panels generate power on cloudy days? Yes. The DAS-DH108NA modules have been optimized for low-irradiance conditions, meaning they outperform standard P-type panels significantly on overcast days typical of the Polish climate. N-type TOPCon technology delivers higher efficiency under diffuse light, allowing the system to generate energy for more hours throughout the year compared to conventional modules. ### Is the bifacial DAS-DH108NA panel worth installing on a rooftop, or is it only beneficial in ground-mounted systems? The bifacial DAS-DH108NA modules harvest additional energy from light reflected off the ground surface, so maximum bifacial gain is achieved in ground-mounted installations over bright substrates such as gravel or light-colored soil. On a rooftop the bifacial contribution is lower, but still measurable — particularly over white roofing membranes or light-colored surfaces. Even without this additional yield, the panel delivers up to 445 Wp at high efficiency, making it a cost-effective choice in any installation scenario. ### What are the dimensions and weight of the DAS-DH108NA panel — is it compatible with standard mounting structures? The DAS-DH108NA module measures 1722 × 1134 × 30 mm and weighs approximately 20.5 kg. These dimensions are typical of the 108-cell format and are fully compatible with widely available aluminum racking systems. It is advisable to confirm that the mounting structure accounts for the slightly higher weight associated with the dual-glass construction, although 20.5 kg falls within the standard load limits for both rooftop and ground-mounted installations. ### What is the mechanical load resistance of the DAS-DH108NA panel against snow and wind? The robust dual-glass construction provides a snow load resistance of up to 5,400 Pa and a wind load resistance of up to 2,400 Pa. This means the panel is fully capable of withstanding conditions found across Poland, including heavy snowfall in mountainous regions and strong winds in open terrain. IEC certification independently verifies these mechanical performance parameters beyond the manufacturer's own declarations. ### Is DAS Solar a reputable manufacturer — can I trust the quality of the DAS-DH108NA panels? DAS Solar is classified as a Tier 1 manufacturer by independent rating agencies, meaning it meets rigorous requirements for production capacity, quality control, and financial stability. The company operates its own N-type TOPCon cell production lines and backs its long-term warranties with insurance coverage. The DAS-DH108NA series is competitive in specifications with leading premium brands while offering an attractive price-to-performance ratio. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/DAS-DH108NA-EN-420-445Black_Pro-88721ad955ad.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +45 W, cooler, +1.7 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +45 W, cooler, +1.7 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +40 W, cooler, +1.5 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +40 W, cooler, +1.5 pp | | [Longi Solar LR7-54HJD-495M](https://comparepv.com/panel/longi-lr7-54hjd-495m) | 495 W | +50 W, cooler, +1.5 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +40 W, cooler, +1.5 pp | | [DAS Solar DAS-DH108NA-410W](https://comparepv.com/panel/daon-das-dh108na-410w) | 410 W | -35 W, heavier, -1.8 pp | | [DAS Solar DAS-DH108NA-415W](https://comparepv.com/panel/daon-das-dh108na-415w) | 415 W | -30 W, heavier, -1.5 pp | | [DAS Solar DAS-DH108NA-420W](https://comparepv.com/panel/daon-das-dh108na-420w) | 420 W | -25 W, -1.3 pp | | [DAS Solar DAS-DH108NA-425W](https://comparepv.com/panel/daon-das-dh108na-425w) | 425 W | -20 W, -1.0 pp | | [DAS Solar DAS-DH108NA-430W](https://comparepv.com/panel/daon-das-dh108na-430w) | 430 W | -15 W, -0.8 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +65 W, cooler, +2.2 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +60 W, cooler, +1.9 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +55 W, cooler, +1.7 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +55 W, cooler, +1.7 pp | --- Source: https://comparepv.com/panel/das-solar-das-dh108na-445w 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.