--- title: "DAH Solar DAS-DH108ND-440W 440W Solar Panel - Specs & Review | ComparePV" description: "DAH Solar DAS-DH108ND-440W 440W solar panel. Specs: 21.60% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dah-solar-das-dh108nd-440w" updated: 2026-09-11 --- # DAH Solar DAS-DH108ND-440W Strong in heat, no clear weak spot 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** DAH Solar - **Model:** DAS-DH108ND-440W - **Series:** Bifacial Double Glass Module (Black Frame) - **Rated power:** 440 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) | 440 W | 435 W | Typical | | | Module efficiency | 21.60% | 22.00% | Typical | 7,652 | | Power density | 215.6 | 220.2 | Typical | 7,721 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 4% | 1,309 | | Weight (kg) | 21.7 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.60% | 22.00% | Typical | 7,652 | | Power density | 215.6 | 220.2 | Typical | 7,721 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 4% | 1,309 | | Weight per kWp | 49.3 | 51.4 | Typical | 2,864 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **-0.280 %/°C temperature coefficient** - Top 4% of the TOPCon 400-450 W segment, against a median of -0.290. Ranked 1,309th in the whole database. - **Best for:** Residential, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 440 W - **Efficiency:** 21.60 % - **Voltage at Pmax (Vmp):** 32.10 V - **Current at Pmax (Imp):** 13.71 A - **Open-circuit voltage (Voc):** 38.82 V - **Short-circuit current (Isc):** 14.58 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 - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 30.00 ### Physical - **Length:** 1800 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.7 kg - **Area:** 2.04 m2 - **Power density:** 215.6 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:** 385 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7652 of 14005 | | Power density | 7721 of 14005 | | Temperature coefficient | 1309 of 14005 | | Weight | 2864 of 14005 | | Warranty | 21 of 14005 | ## Pros - **BNEF Tier 1 – Confirmed Bankability** - DAH Solar has maintained BNEF Tier 1 status for multiple consecutive quarters, including Q1 and Q4 2025. This ensures full eligibility for project financing and insurance without additional supplier audits. - **30-Year Linear Power Warranty** - The manufacturer guarantees linear power output for 30 years, exceeding the 25-year standard offered by a significant portion of the market (e.g., Zonergy ZPM MH3-72). The extended warranty horizon directly improves IRR modeling for both utility-scale and prosumer projects. - **N-Type TOPCon: Temperature Coefficient of -0.30%/°C** - N-type cells feature a Pmax temperature coefficient of -0.30%/°C, resulting in lower power losses on hot days compared to PERC technology (-0.35%/°C). At an ambient temperature of 35°C and a cell temperature of 65°C, this translates to approximately 1.5% higher instantaneous power output relative to a PERC module. - **Glass-Glass Construction: 5,400 Pa Snow / 2,400 Pa Wind** - The dual tempered-glass laminate provides mechanical load resistance of up to 5,400 Pa (snow) and 2,400 Pa (wind) per datasheet specifications. It eliminates the risk of microcracks and moisture ingress, which is particularly critical for ground-mount and carport installations in temperate climates. - **~80% Bifaciality – Additional Rear-Side Energy Yield** - A bifaciality factor of ~80% enables an additional 10–20% energy gain from reflected irradiance at optimal ground albedo (light gravel, snow, light-gray membrane). In ground-mount installations over white gravel, this translates to a real-world annual energy yield gain of 5–10% compared to a monofacial module of equivalent STC power. ## Cons - **Efficiency Up to 22.5% – Below Peer-Group Leaders** - The maximum efficiency of the series reaches 22.5%, while direct peer comparables achieve 23.0% (Risen RSM96-11-440-460BNDG) and 23.02% (SunKean SKT440~460M12-96D4). The ~0.5 percentage-point gap translates to approximately 2–3% less power from an identical roof area, which can be a significant constraint in space-limited installations. ## About this series The DAH Bifacial Double Glass Module (Black Frame) series is an advanced solution for investors seeking maximum efficiency from a limited area. The use of **bifacial technology** allows for the generation of additional energy from reflected radiation, which, combined with double tempered glass, drastically increases the mechanical durability of the modules. Thanks to the black frame, the panels gain a modern look that blends perfectly with dark roof coverings, without losing cell cooling parameters. A key differentiator is the **high resistance to PID degradation** and the LID phenomenon, which guarantees stable energy yields for decades. The glass-glass construction eliminates the risk of micro-cracks and protects the cells from moisture and aggressive external factors such as ammonia or salt mist. It is an ideal choice for ground-mounted installations, carports, and modern single-family houses, where every watt of power matters while maintaining impeccable aesthetics. Unlike standard monofacial modules, this series offers a **better temperature coefficient**, which translates into higher efficiency on hot days. By choosing this solution, the user receives a product resistant to extreme weather conditions, which effectively shortens the payback period thanks to a **higher annual energy yield** from the same mounting surface. ## Notable figures - At 21.6% efficiency, this panel is on par with typical \*\*TOPCon 400-450W\*\* modules - At 215.6 W/m², this panel generates 4.6 W/m² less per unit area than \*\*TOPCon 400-450W\*\* median (220.2 W/m²) - At -0.28%/°C, hot weather performance is typical for \*\*TOPCon 400-450W\*\* panels - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface - Ranked #7652 out of 14005 panels for efficiency in the database ## Questions ### What warranty is provided for the DAH Solar Bifacial Double Glass Module (Black Frame) series? The DAH Solar Bifacial Double Glass Module (Black Frame) series comes with a 25-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. This means the manufacturer guarantees that panels will maintain a specified efficiency level for three full decades. This is one of the longest power warranties available on the market today, reflecting the high build quality of the glass-glass construction and the N-type TOPCon cell technology used throughout the series. ### How much additional energy does the rear side of the DAH Solar Bifacial Double Glass (Black Frame) module generate? Thanks to bifacial technology, the rear surface of the module captures irradiance reflected from the ground, rooftop, or surrounding environment, generating 5–25% additional energy compared to a conventional monofacial panel. The bifacial gain is greatest over high-albedo surfaces such as light-colored roofing membranes, gravel, concrete, or snow. In ground-mounted installations, the bifacial gain can meaningfully shorten the overall payback period of the investment. ### Are the DAH Solar Bifacial Double Glass panels with a black frame suitable for pitched roof installations? Yes, this series can be installed on pitched roofs; however, it is important to note that glass-glass modules are heavier than standard backsheet panels. It is essential to verify that the roof structure can support the increased load before installation. The black frame integrates seamlessly with dark roofing materials, and the bifacial gain in this type of mounting configuration typically falls in the 5–10% range, depending on the color and reflectivity of the roofing surface. ### How does the DAH Solar Bifacial Double Glass (Black Frame) series perform on hot days? The N-type TOPCon cells used in this series feature a superior temperature coefficient compared to older PERC technology, at approximately -0.29%/°C. In practical terms, this means a smaller power loss during high-temperature conditions than is seen with previous-generation modules. As a result, on hot summer days the system generates more energy than competing P-type modules operating under identical irradiance conditions. ### Is the DAH Solar Bifacial Double Glass (Black Frame) series resistant to moisture, ammonia, and salt mist? Yes. The glass-glass construction eliminates the backsheet, which is the weakest point in standard modules with respect to moisture ingress. Modules in this series have certified resistance to ammonia (relevant for agricultural installations) and salt mist (relevant for coastal locations). Their high resistance to PID degradation and the LID effect further ensures stable energy yield over the years, even in environmentally demanding sites. ### How does the N-type technology in the DAH Solar Bifacial Double Glass (Black Frame) panels differ from older PERC modules? N-type TOPCon cells are manufactured from silicon with a lower impurity concentration than P-type PERC technology, which results in higher initial efficiency, lower degradation in the early years of operation (no LID effect), and a better temperature coefficient. In practical terms, this translates to more kilowatt-hours per square meter over the entire operational lifetime of the system, leading to a faster return on investment compared to equivalent PERC-based installations. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Datasheet_DAS-DH108ND-EN-440-460Black_Frame-266f8412613f.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +50 W, cooler, +2.9 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +50 W, cooler, +2.9 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +45 W, lighter, +2.7 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +45 W, cooler, +2.7 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +45 W, cooler, +2.7 pp | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | +45 W, cooler, +2.7 pp | | [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | +45 W, heavier, +2.7 pp | | [DAH Solar DAS-DH108ND-445W](https://comparepv.com/panel/dah-solar-das-dh108nd-445w) | 445 W | Very close match | | [DAH Solar DHN-54R18/DG-450W](https://comparepv.com/panel/dah-dhn-54r18-dg-450w) | 450 W | +10 W, heavier, +0.4 pp | | [DAH Solar DHN-54R18/DG-455W](https://comparepv.com/panel/dah-dhn-54r18-dg-455w) | 455 W | +15 W, heavier, +0.7 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +70 W, cooler, +3.4 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +55 W, cooler, +3.2 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +65 W, cooler, +3.1 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +60 W, cooler, +2.9 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +60 W, cooler, +2.9 pp | --- Source: https://comparepv.com/panel/dah-solar-das-dh108nd-440w 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.