--- title: "DAH Solar DHN-48Z16/DG(RR)-385 385W Solar Panel - Specs & Review | ComparePV" description: "DAH Solar DHN-48Z16/DG(RR)-385 385W solar panel. Specs: 19.27% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dah-dhn-48z16-dg-rr-385" updated: 2026-09-11 --- # DAH Solar DHN-48Z16/DG(RR)-385 Solid all-round for its segment 112 panels in the segment TOPCon 350-400 W ## Identity - **Manufacturer:** DAH Solar - **Model:** DHN-48Z16/DG(RR)-385 - **Series:** DHN-48Z16/DG(RR) - **Rated power:** 385 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 350-400 W (112 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 385 W | 380 W | Typical | | | Module efficiency | 19.27% | 18.20% | Typical | 12,830 | | Power density | 192.7 | 181.8 | Typical | 12,803 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 23.9 kg | 26.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.27% | 18.20% | Typical | 12,830 | | Power density | 192.7 | 181.8 | Typical | 12,803 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 62.1 | 68.9 | Typical | 12,741 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 385 W - **Efficiency:** 19.27 % - **Voltage at Pmax (Vmp):** 30.37 V - **Current at Pmax (Imp):** 12.68 A - **Open-circuit voltage (Voc):** 35.25 V - **Short-circuit current (Isc):** 13.09 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 - **Bifacial gain:** 25.00 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 23.9 kg - **Area:** 2.00 m2 - **Power density:** 192.7 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:** 336 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12830 of 14005 | | Power density | 12803 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 12741 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Low Temperature Coefficient — N-type TOPCon** - The Pmax temperature coefficient is -0.29%/°C, significantly better than typical P-type PERC modules (-0.34 to -0.36%/°C). On hot days (35 °C), this advantage translates into a real-world annual energy gain of approximately 1–2% compared to older technologies. - **Full Screen Zero-Ledge Design — Reduced Soiling Losses** - TÜV Nord confirmed in an independent field test a 6–15% increase in energy generation compared to conventional framed modules on low-tilt roofs, where frame-edge deposits create shading strips and hotspots. The technology is patented in 18 countries, including DE, US, AU, and JP. - **30-Year Linear Power Warranty ≥87.4%** - The manufacturer guarantees ≥89.4% of rated power after 25 years and ≥87.4% after 30 years. The peer-comparable DMEGC GH400M10T-B48HST offers a standard 25-year warranty with no extended 30-year coverage, making the DAH series more advantageous for long-term investment cases. - **BNEF Tier 1 — Q1 2025 and Q4 2025** - DAH Solar maintains bankable manufacturer status on the BloombergNEF Tier 1 list across consecutive quarters of 2025. This enables project financing through banks and financial institutions, which is critical for commercial installations and PPA-based projects. - **80% Bifaciality + Double Glass 2 mm** - A bifaciality factor of up to 80% allows additional energy harvest from reflected irradiance off light-colored substrates such as white gravel or EPDM membranes. The double-glass construction provides superior resistance to UV degradation, moisture ingress, and mechanical loading compared to polymer backsheet modules. ## Cons - **Colored Glass (RR Variant) Reduces Efficiency vs. Clear-Glass Version** - The RR (terracotta) variant reaches a maximum efficiency of 20.02%, while the equivalent DAH Full-Screen FS module with clear glass achieves 21.78% per the manufacturer's datasheet — a difference of approximately 1.76 percentage points attributable to the lower transmittance of the colored laminate. Buyers selecting a module solely on the basis of maximum energy yield should consider the clear-glass version. ## About this series DAH DHN-48Z16/DG(RR) photovoltaic panels revolutionize the approach to efficiency thanks to the patented **Full Screen** technology, which completely eliminates the protruding frame edge. Thanks to this design, water and any contaminants flow freely off the module surface, effectively solving the common problem of sediment accumulation on the lower edge of the panel. The use of advanced **N-type TOPCon** silicon cells ensures higher efficiency and significantly lower annual degradation compared to traditional P-type solutions. The **Double Glass** construction additionally strengthens mechanical resistance and allows for the effective use of reflected light, which translates into realistically higher energy yields. This series is especially dedicated to homeowners and companies looking for maintenance-free systems for low-tilt roofs, where standard modules quickly lose power due to accumulating dust. What distinguishes this model from the competition is the innovative **Zero-Ledge** design, which minimizes the risk of hot spots caused by localized soiling. By choosing DAH DHN-48Z16/DG(RR), you are investing in a product with an **excellent temperature coefficient**, which guarantees stable operation and maximum profits from photovoltaics for many years, without the need for frequent and costly cleaning of the module edges. ## Notable figures - Efficiency of 19.3% is 3.3pp above the \*\*TOPCon 0-400W\*\* median (16.0%) - 192.7 W/m² power density - 32.9 W/m² more than \*\*TOPCon 0-400W\*\* median (159.8 W/m²), more power per roof area - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 0-400W\*\* median - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface - #12830 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### Is the DAH Solar DHN-48Z16/DG(RR) series still available for purchase? The DHN-48Z16/DG(RR) series has been discontinued and is no longer offered as a new product. Individual units may occasionally appear through distributors drawing on existing warehouse stock. If you are looking for modules with similar characteristics — N-type TOPCon technology, Double Glass construction, and the self-cleaning Zero-Ledge profile — it is worth asking your sales representative about the current replacement within the DAH Solar Full-Screen family. ### What warranty is provided for the DAH Solar DHN-48Z16/DG(RR) panels? The manufacturer offers a 25-year product warranty (covering physical defects of the module) and a 30-year power output warranty. Thanks to the use of N-type TOPCon cells, annual degradation is exceptionally low — approximately 0.4% after the first year — meaning the panel retains more than 87% of its nominal power after 30 years. This is one of the best degradation rates available in the premium segment. ### What are the benefits of the Zero-Ledge and Full Screen design in the DHN-48Z16/DG(RR) panel? The Full Screen technology eliminates the protruding frame ledge, allowing water and dust to drain freely from the module surface — a particularly important feature on low-tilt roofs (below 15°), where conventional panels tend to accumulate deposits rapidly. The Zero-Ledge design minimizes the formation of hot spots caused by localized soiling, which directly translates into longer cell service life and higher energy yield throughout the entire operational period. ### Is the DAH DHN-48Z16/DG(RR) 400 W panel suitable for flat roofs or low-tilt roof installations? Yes, this is one of the primary intended applications for this series. The Full Screen construction with the Zero-Ledge profile was specifically designed for installations on flat roofs or roofs with a tilt angle below 15°. It prevents dust and contaminants from accumulating along the bottom edge of the module — a common problem with conventional framed panels that have a protruding ledge. The module is equally well suited for ground-mount systems and overhead structures such as carports and canopies. ### Is the DHN-48Z16/DG(RR) a bifacial panel, and how much additional yield can I expect from the rear surface? Yes, the module is bifacial. The rear glass (Double Glass construction) captures light reflected from the underlying surface — whether rooftop albedo, snow, or a light-colored ground surface. The bifaciality factor is up to 80%, which in practice can yield an additional 5–15% energy production depending on the reflectivity of the surroundings. The effect is particularly pronounced in winter, when snow beneath the panels reflects intense solar irradiance back onto the rear cell surface. ### How do the N-type TOPCon cells in the DAH DHN-48Z16/DG(RR) differ from standard P-type cells? N-type TOPCon cells offer higher efficiency — up to approximately 23% for this series — and significantly lower annual degradation, on the order of 0.4% compared to the 0.55–0.7% typical of P-type technology. They are also more resistant to LID (Light-Induced Degradation), which reduces the output of P-type panels during the first months of operation. As a result, over the full 30-year power warranty period, the panel will generate measurably more energy in real-world conditions than a module with the same nominal power rating built on PERC technology. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/en-dhn-48z16-dg-rr-380-400w-8e6efb0a9efa.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | -45 W, lighter, +3.7 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | -25 W, lighter, +3.7 pp | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | Lighter, +3.7 pp | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | +15 W, lighter, +3.7 pp | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | +15 W, lighter, +3.7 pp | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | Lighter, +3.7 pp | | [Luxor Solar LX-435M/182-108+ GG](https://comparepv.com/panel/luxor-solar-lx-435m-182-108-gg-1) | 435 W | +50 W, cooler, +3.5 pp | | [Jetion JT435SYk(B)](https://comparepv.com/panel/jetion-jt435syk-b) | 435 W | +50 W, cooler, +3.4 pp | | [Maxeon SPR-MAX3-430-R](https://comparepv.com/panel/maxeon-spr-max3-430-r) | 430 W | +45 W, +3.4 pp, +10 yr warranty | | [Luxor Solar LX-435M/182-108+](https://comparepv.com/panel/luxor-solar-lx-435m-182-108) | 435 W | +50 W, +3.3 pp, -5 yr warranty | | [DAH Solar DHN-48Z16/DG(RR)-380W](https://comparepv.com/panel/dah-dhn-48z16-dg-rr-380w) | 380 W | -0.2 pp | | [DAH Solar DHN-48Z16/DG(RR)-390W](https://comparepv.com/panel/dah-dhn-48z16-dg-rr-390w) | 390 W | +0.2 pp | | [DAH Solar DHN-48Z16/DG(RR)-395W](https://comparepv.com/panel/dah-dhn-48z16-dg-rr-395w) | 395 W | +10 W, +0.5 pp | | [DAH Solar DHN-48Z16/DG(RR)-400W](https://comparepv.com/panel/dah-dhn-48z16-dg-rr-400w) | 400 W | +15 W, +0.8 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +125 W, cooler, +5.7 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +110 W, cooler, +5.5 pp | --- Source: https://comparepv.com/panel/dah-dhn-48z16-dg-rr-385 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.