--- title: "DAH Solar DHN-48Z16/DG(RR)-400W 400W Solar Panel - Specs & Review | ComparePV" description: "DAH Solar DHN-48Z16/DG(RR)-400W 400W solar panel. Specs: 20.02% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dah-dhn-48z16-dg-rr-400w" updated: 2026-09-11 --- # DAH Solar DHN-48Z16/DG(RR)-400W Middle of its segment, modest efficiency 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** DAH Solar - **Model:** DHN-48Z16/DG(RR)-400W - **Series:** DHN-48Z16/DG(RR) 380–400W - **Rated power:** 400 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) | 400 W | 435 W | Weak - bottom 1% | | | Module efficiency | 20.02% | 22.00% | Weak - bottom 2% | 12,182 | | Power density | 200.2 | 220.2 | Weak - bottom 2% | 12,189 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 23.9 kg | 22.0 kg | Weak - bottom 6% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.02% | 22.00% | Weak - bottom 2% | 12,182 | | Power density | 200.2 | 220.2 | Weak - bottom 2% | 12,189 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 59.7 | 51.4 | Weak - bottom 6% | 12,254 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **20.02% module efficiency** - Bottom 2% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 12,182nd in the whole database. - **200.2 watts per square metre** - Bottom 2% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 12,189th in the whole database. - **59.7 kg per kWp** - Bottom 6% of the TOPCon 400-450 W segment, against a median of 51.4. Ranked 12,254th in the whole database. - **Best for:** Residential, commercial and BIPV. - **Not ideal for:** Tight roof space, roofs where every square metre has to count and weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 400 W - **Efficiency:** 20.02 % - **Voltage at Pmax (Vmp):** 30.48 V - **Current at Pmax (Imp):** 13.13 A - **Open-circuit voltage (Voc):** 35.36 V - **Short-circuit current (Isc):** 13.60 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:** 96 - **Bifacial:** yes ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 23.9 kg - **Area:** 2.00 m2 - **Power density:** 200.2 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 % - **Output after 30 years:** 350 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12182 of 14005 | | Power density | 12189 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 12254 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Low Temperature Coefficient of -0.29%/°C** - N-type TOPCon technology delivers a Pmax temperature coefficient of -0.29%/°C, compared to -0.35%/°C typical of standard PERC cells. This ~17% improvement translates into meaningfully higher energy yield during summer months, when module temperatures routinely exceed 50°C. - **30-Year Power Warranty (87.4%)** - The manufacturer guarantees ≥89.4% of rated power after 25 years and ≥87.4% after 30 years, surpassing the industry standard — most competitors, including the DMEGC GH400M10T, offer 25-year warranties with ~84.8% retention. The extended warranty horizon reduces financial risk for projects with CAPEX amortized over multiple decades. - **Bifacial with 80% Bifaciality Factor** - A bifaciality factor of 80% (confirmed in the ENF datasheet) enables a real-world energy yield gain of 10–20% under favorable albedo conditions (light-colored substrate, snow, gravel). The glass-glass construction additionally eliminates LeTID risk and extends the module's mechanical service life. - **BNEF Tier 1 — Bankability Confirmed** - DAH Solar has maintained continuous BloombergNEF Tier 1 status in Q1 and Q3 2025, confirming its ability to support project finance and reducing counterparty risk in long-term procurement agreements. - **Efficiency 19.02–20.02% vs. Peer Comparables** - Peak efficiency of 20.02% substantially outperforms the comparable DMEGC GH400M10T-B48HST (15.48%) and is on par with the Solaria PowerXT (20.2%) at the same 400 Wp rating, enabling a smaller installation footprint for equivalent energy output. ## Cons - **Weight of 23.9 kg — Heavier Than Monofacial Modules** - The glass-glass construction raises module weight to 23.9 kg, approximately 3–4 kg more than typical single-glass frameless monofacial modules (~20–21 kg). Retrofits on existing rooftops may require an additional structural load analysis, particularly for large-scale BIPV installations. - **Niche Product (BIPV) — Limited Availability** - The DHN-48Z16/DG(RR) series is a colored variant designed specifically for architectural and BIPV applications, resulting in narrower distribution and potentially longer lead times compared to standard black/white variants on the same platform (e.g., DHN-48Z16-DG(BW)), which are stocked by a broader network of distributors. ## About this series The DAH DHN-48Z16/DG(RR) series, with a power output of 380-400W, is designed for modern installations where both performance and aesthetics are important. These are **bifacial** modules with **double glazing**, which allows them to better withstand mechanical loads and maintain stable parameters for longer, even in harsh conditions. The use of **N-type TOPCon** cells helps to minimize losses and supports high productivity, even in situations with lower sunlight and higher temperatures. A key feature of this series is the **durable color-protecting coatings**, which make it easy to match the panels to the aesthetics of the roof or facade without compromising performance. In practice, this solves a common problem for investors: how to combine architectural requirements with the real cost-effectiveness of the installation. This is a good choice for single-family homes, commercial buildings, and BIPV projects - from roofs to facades, railings, or canopies, where the **dual-sided** and robust construction provides an advantage. ## Notable figures - Module efficiency of 20.0% is 2.0pp below average for \*\*TOPCon 400-450W\*\* panels (median: 22.0%) - 200.2 W/m² power density is 20.0 W/m² below \*\*TOPCon 400-450W\*\* median (220.2 W/m²) - requires larger installation area - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 400-450W\*\* median - At 23.9 kg, this panel is 1.9 kg heavier than the \*\*TOPCon 400-450W\*\* median (22.0 kg) - more demanding for installation crews - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces ## Questions ### What warranty is offered on the DAH Solar DHN-48Z16/DG(RR) 380–400W panels? The DHN-48Z16/DG(RR) series is covered by a 25-year product warranty from the manufacturer and a 30-year linear power output warranty. After 30 years of operation, the manufacturer guarantees that the module will retain at least 87.4% of its nominal power output. This is one of the longest power warranties available in the photovoltaic panel market, reflecting DAH Solar's confidence in the durability of the dual-glass construction and N-type TOPCon cell technology used in this series. ### Does the TOPCon technology in the DAH DHN-48Z16/DG(RR) panels actually translate into higher energy yield? Yes. N-type TOPCon cells feature a lower temperature coefficient of -0.29%/°C, which means reduced power losses on hot days compared to the more widely used PERC cells. Additionally, this technology exhibits greater resistance to light-induced degradation (LID), allowing the DHN-48Z16/DG(RR) module to maintain higher productivity throughout the entire system lifetime. The panel achieves an efficiency of up to 20.02%. ### What does the RR designation in the DAH DHN-48Z16/DG(RR) series name indicate, and does such a panel differ in performance from the standard version? The RR designation refers to the module's colored coating (in a red-brick shade), designed for installations where aesthetics matter — such as rooftops, façades, or BIPV applications. The electrical parameters, including maximum power output of up to 400 Wp and efficiency of up to 20.02%, remain identical to those of the standard versions in the series. The colored coating affects only the appearance of the panel, not its energy performance. ### Is the DAH DHN-48Z16/DG(RR) 400W panel suitable for BIPV installation on a façade or balcony? Yes, the DHN-48Z16/DG(RR) series is explicitly designed for BIPV applications. The glass-glass construction provides resistance to mechanical loads and moisture ingress, which is critical for vertical mounting on façades, balustrades, and canopies. The module's bifacial operation allows it to additionally harvest energy from reflected irradiance — for example, from building walls or ground surfaces — which is a particular advantage in vertical installations. ### How much does the DAH Solar DHN-48Z16/DG(RR) panel weigh, and can a typical roof structure support such an installation? The DHN-48Z16/DG(RR) module weighs approximately 23.9 kg with dimensions of 1762×1134×30 mm. It is somewhat heavier than standard single-glass panels, owing to its dual-glass construction. Prior to installation, it is advisable to have the load-bearing capacity of the roof assessed by a licensed structural engineer, particularly for older buildings or timber roof structures. Modern residential installations typically have no difficulty supporting this level of load. ### Do the DAH DHN-48Z16/DG(RR) panels perform well in winter and under low-irradiance conditions? Yes. N-type TOPCon cells exhibit better low-light responsiveness compared to P-type PERC cells, resulting in higher energy yield on overcast days and during the winter months. The low temperature coefficient (-0.29%/°C) also means that in cold, sunny conditions the module can momentarily produce slightly above its nominal power of 400 Wp, since cold cells operate more efficiently than overheated ones. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/en-dhn-48z16-dg-rr-380-400w-8e6efb0a9efa.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Luxor Solar LX-440M/182-108+GG](https://comparepv.com/panel/luxor-solar-lx-440m-182-108-gg) | 440 W | +40 W, cooler, +3.1 pp | | [Just Solar JST-EDMH-(445-465)W-TD (450W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-450w-class) | 450 W | +50 W, lighter, +3.0 pp | | [Q-SUN Solar QNN182-HG450-54](https://comparepv.com/panel/qn-solar-pv-limited-qnn182-hg450-54) | 450 W | +50 W, +3.0 pp | | [Huayao HY440-N108BDD](https://comparepv.com/panel/huayao-hy440-n108bdd) | 450 W | +50 W, hotter, +3.0 pp | | [BYD NLBK-27-450](https://comparepv.com/panel/byd-nlbk-27-450) | 450 W | +50 W, hotter, +3.0 pp | | [Renesola RS41-450NBG-E3](https://comparepv.com/panel/renesola-rs41-450nbg-e3) | 450 W | +50 W, +3.0 pp | | [DAH Solar DHN-48Z16/DG(RR)-380W](https://comparepv.com/panel/dah-dhn-48z16-dg-rr-380w) | 380 W | -20 W, -1.0 pp | | [DAH Solar DHN-48Z16/DG(RR)-385W](https://comparepv.com/panel/dah-dhn-48z16-dg-rr-385w) | 385 W | -15 W, -0.8 pp | | [DAH Solar DHN-48Z16/DG(RR)-390W](https://comparepv.com/panel/dah-dhn-48z16-dg-rr-390w) | 390 W | -10 W, -0.5 pp | | [DAH Solar DHN-48Z16/DG(RR)-395W](https://comparepv.com/panel/dah-dhn-48z16-dg-rr-395w) | 395 W | -0.2 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +110 W, cooler, +5.0 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +95 W, cooler, +4.8 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +105 W, cooler, +4.7 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +90 W, cooler, +4.5 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +100 W, cooler, +4.5 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +100 W, cooler, +4.5 pp | --- Source: https://comparepv.com/panel/dah-dhn-48z16-dg-rr-400w 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.