--- title: "DAH Solar DHM-T72X10/BF/FS-550W 550W Solar Panel - Specs & Review | ComparePV" description: "DAH Solar DHM-T72X10/BF/FS-550W 550W solar panel. Specs: 21.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dah-dhm-t72x10-bf-fs-550w" updated: 2026-09-11 --- # DAH Solar DHM-T72X10/BF/FS-550W Warranty pick, no clear weak spot 589 panels in the segment PERC 550-600 W ## Identity - **Manufacturer:** DAH Solar - **Model:** DHM-T72X10/BF/FS-550W - **Series:** DHM-T72X10/BF/FS - **Rated power:** 550 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 550-600 W (589 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 550 W | 560 W | Weak - bottom 15% | | | Module efficiency | 21.30% | 21.29% | Typical | 8,519 | | Power density | 212.8 | 212.9 | Typical | 8,643 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 28.9 kg | 30.8 kg | Typical | | | Performance warranty | 30 yrs | 27 yrs | Strong - top 25% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.30% | 21.29% | Typical | 8,519 | | Power density | 212.8 | 212.9 | Typical | 8,643 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 52.5 | 52.7 | Typical | 6,179 | | Performance warranty | 30 yrs | 27 yrs | Strong - top 25% | 21 | ### Strengths - **30 year performance warranty** - Top 25% of the PERC 550-600 W segment, against a median of 27 yrs. - **Best for:** Commercial, utility-scale and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 550 W - **Efficiency:** 21.30 % - **Voltage at Pmax (Vmp):** 63.00 V - **Current at Pmax (Imp):** 8.73 A - **Open-circuit voltage (Voc):** 74.70 V - **Short-circuit current (Isc):** 9.31 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.310 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 216 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 2279 mm - **Width:** 1134 mm - **Thickness:** 32 mm - **Weight:** 28.9 kg - **Area:** 2.58 m2 - **Power density:** 212.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 467 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8519 of 14005 | | Power density | 8643 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 6179 of 14005 | | Warranty | 21 of 14005 | ## Pros - **30-Year Linear Power Warranty** - The manufacturer provides a linear power output warranty for 30 years (>80.1% after 25 years), surpassing the 25-year standard typically offered by comparable bifacial PERC series in this power class (Exiom, Goldi Solar, Premier Energies). The extended coverage horizon improves LCOE metrics in commercially and ground-mounted projects with external financing. - **Up to 21.72% Efficiency — Top Tier for Bifacial PERC** - The highest-performance 560 W variant achieves 21.72%, positioning the series on par with direct competitors: Exiom EX540-560M(B) (21.7%), Goldi Solar GS10-B144-GF (21.7%), and Premier Energies (21.67%). The series remains in the top 10% of the 182 mm bifacial PERC module segment, translating into greater power output from the same roof or ground area. - **Bifacial Technology with Up to 20% Rear-Side Yield Gain** - The bifacial design with a transparent backsheet (FS) harvests additional energy from ground-reflected irradiance — the manufacturer rates up to 20% additional energy yield under suitable installation conditions (light-colored TPO/PVC membrane, ground mount, open-rack structure). Particularly effective in ground-mounted and commercial flat-roof projects with high substrate albedo. - **1/3-Cut Cell Design: Reduced Resistive Losses** - Splitting the cell into thirds reduces operating current more aggressively than a conventional half-cut design (power loss P = I²R), lowering thermal stress on MC4 connectors and cabling. This results in improved partial-shading tolerance and more stable module output under non-uniform irradiance distribution. - **BNEF Tier 1 — Confirmed Bankability** - DAH Solar has continuously appeared on the BNEF Tier 1 list from at least Q1 2025 through Q4 2025, meeting the tightened qualification criteria (minimum 10 MW of financed projects from 2025 onward). Bankable status is a requirement of most financing institutions for renewable energy projects above 1 MW and reduces counterparty risk for investors. ## Cons - **Series Discontinued** - Production of the DHM-T72X10/BF/FS series has been discontinued. This creates challenges in expanding or replenishing installations in the event of physical damage, limits module availability on the market, and raises the risk that warranty servicing may be deprioritized in favor of active product lines. DAH Solar has transitioned to TOPCon platforms (DHN series), further reducing the likelihood of sourcing replacement modules with identical electrical parameters. - **P-Type PERC: Higher Temperature Coefficient Than TOPCon** - The temperature coefficient is -0.37%/°C (P-type PERC), whereas current N-type TOPCon modules achieve -0.29 to -0.32%/°C. At a module temperature of 70°C (typical summer conditions in Poland, Δ = 45°C above STC), this translates to approximately 2.0–2.5% additional power loss relative to an equivalent TOPCon module, meaningfully reducing energy yield during peak irradiance months (June–August). ## About this series The DAH DHM-T72X10/BF/FS series are full-screen bifacial modules designed for maximum energy production in real-world installation conditions. Thanks to the **1/3-cut design**, the module operates at a lower current, reducing losses in wiring and connections, and also helps to mitigate the effects of local shading. The use of **bifacial technology** allows for the utilization of reflected light from the ground, making the series particularly suitable for flat roofs with a light membrane, ground installations, and commercial projects where maximizing energy output per square meter is crucial. Another noteworthy feature is the **high-transmittance glass with an anti-reflective coating**, which supports stable operation under diffuse light and varying angles of incidence. The manufacturer emphasizes **reducing the risk of hot spots and losses due to soiling**, which translates into greater predictability of energy yields. This is a proposal for installers and investors who want to combine the aesthetics of a full-screen design with the practical benefits of operation. ## Notable figures - Efficiency of 21.3% matches the \*\*PERC 550-600W\*\* median - At 212.8 W/m² power density, roof space requirements are typical for \*\*PERC 550-600W\*\* panels - At -0.35%/°C, hot weather performance is typical for \*\*PERC 550-600W\*\* panels - At 28.9 kg, this panel is 1.9 kg lighter than \*\*PERC 550-600W\*\* median (30.8 kg) - easier handling during installation - 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces ## Questions ### Is the DAH Solar DHM-T72X10/BF/FS series still available for purchase? The DHM-T72X10/BF/FS series has been discontinued by DAH Solar. This means that module availability is limited to remaining stock held by distributors. If you are looking for a currently manufactured equivalent, it is worth asking your installer about newer DAH Solar series featuring similar bifacial PERC or TOPCon technology. ### What warranty does the DAH Solar DHM-T72X10/BF/FS come with? The manufacturer provides a 12-year product warranty covering materials and workmanship, along with a 30-year linear power output warranty. This means that over 30 years the module is guaranteed to retain a defined percentage of its 560 Wp nominal power rating. These are standard warranty terms for Tier 1 modules and are comparable to those offered by leading brands in the market. ### What does bifacial technology mean in the DHM-T72X10/BF/FS series, and does it genuinely increase energy yield? Bifacial means the module generates power from both sides — the front face absorbs direct irradiance, while the rear face captures light reflected from the mounting surface (known as albedo). For the DHM-T72X10/BF/FS, the actual rear-side gain depends on the reflectivity of the underlying surface: a white flat-roof membrane or light-colored gravel can increase energy yield by as much as several percentage points compared to a monofacial module. ### Which installation types are best suited to the DAH Solar DHM-T72X10/BF/FS series? The series performs best on flat roofs with a light-colored membrane, ground-mount structures, and commercial projects where maximizing yield per square meter is critical. The bifacial 1/3-cut cell technology reduces losses under partial shading, which also makes it less well-suited to steeply pitched roofs with significant obstructions such as chimneys or dormer windows. ### How does the 1/3-cut cell technology in the DHM-T72X10/BF/FS differ from conventional half-cut modules? In a standard half-cut module, each cell is divided into 2 pieces. With 1/3-cut technology, each cell is split into 3 equal segments, which reduces the operating current of each segment proportionally. Lower current translates directly into lower resistive losses in cables and connectors, as well as improved tolerance to localized shading of a single segment — without affecting the output of the remaining sections of the module. ### What is the peak power output of the DAH Solar DHM-T72X10/BF/FS module and what accounts for it? The module's peak power output is 560 Wp under Standard Test Conditions (STC). This is achieved through a combination of high-efficiency monocrystalline PERC cells, a full-screen cell layout that maximizes the active cell area, and an anti-reflective coated glass front sheet that improves light absorption under diffuse irradiance and low-angle incidence conditions. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/EN-DHM-T72X10-BF-FS-545-560W-310704f993cd.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +3.7 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +3.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +3.4 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.3 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +3.2 pp | | [DAH Solar DHM-72X10-540W](https://comparepv.com/panel/dah-dhm-72x10-540w) | 540 W | -10 W, -0.4 pp, -5 yr warranty | | [DAH Solar DHM-T72X10/FS-545W](https://comparepv.com/panel/dah-dhm-t72x10-fs-545w) | 545 W | -0.2 pp, -5 yr warranty | | [DAH Solar DHM-72X10-555W](https://comparepv.com/panel/dah-dhm-72x10-555w) | 555 W | -5 yr warranty | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +100 W, cooler, +3.9 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +95 W, cooler, +3.7 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +90 W, cooler, +3.5 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +85 W, cooler, +3.3 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +80 W, cooler, +3.1 pp | --- Source: https://comparepv.com/panel/dah-dhm-t72x10-bf-fs-550w Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.