--- title: "DAH Solar DHM-72X10-540W 540W Solar Panel - Specs & Review | ComparePV" description: "DAH Solar DHM-72X10-540W 540W solar panel. Specs: 20.89% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dah-dhm-72x10-540w" updated: 2026-09-11 --- # DAH Solar DHM-72X10-540W Middle of its segment, short guarantee 706 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** DAH Solar - **Model:** DHM-72X10-540W - **Series:** DHM-72X10 (540~555W) Half-Cell High Efficiency PV Module - **Rated power:** 540 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 500-550 W (706 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 540 W | 535 W | Typical | | | Module efficiency | 20.89% | 20.90% | Typical | 10,294 | | Power density | 208.9 | 209.0 | Typical | 10,202 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 29.0 kg | 28.4 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 23% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.89% | 20.90% | Typical | 10,294 | | Power density | 208.9 | 209.0 | Typical | 10,202 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 53.7 | 53.0 | Typical | 7,707 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 23% | 9,798 | ### Watch out for - **25 year performance warranty** - Bottom 23% of the PERC 500-550 W segment, against a median of 30 yrs. - **Best for:** Commercial, utility-scale and shaded-installations. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 540 W - **Efficiency:** 20.89 % - **Voltage at Pmax (Vmp):** 42.00 V - **Current at Pmax (Imp):** 12.86 A - **Open-circuit voltage (Voc):** 49.80 V - **Short-circuit current (Isc):** 13.66 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:** 144 ### Physical - **Length:** 2279 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 29.0 kg - **Area:** 2.58 m2 - **Power density:** 208.9 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 443 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10294 of 14005 | | Power density | 10202 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 7707 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Efficiency at the Top of the PERC Segment** - A peak efficiency of 21.48% places the series on par with its direct competitors: JA Solar Deep Blue 3.0 (21.5%), ET Solar Elite PLUS (21.4%), and Boviet Vega Series (21.3%). In the 540–555 W PERC half-cut segment, the DHM-72X10 holds its own against market leaders. - **10-Busbar Half-Cut Cell Architecture** - The 10-busbar design reduces series resistance and self-shading from electrode fingers, lowering internal losses. The half-cut cell architecture further reduces power dissipation under partial shading conditions by approximately 50% compared to full-cell modules — a tangible advantage for installations with shading obstacles. - **Low Temperature Coefficient: -0.31%/°C** - The series datasheet specifies γPmax = -0.31%/°C, compared to -0.35%/°C typical for standard PERC modules. At a cell temperature of 65°C — common during Polish summers — this translates to approximately 1.4% higher output relative to a module with a standard temperature coefficient, representing a real energy gain during peak irradiance seasons. - **Confirmed BNEF Tier-1 Status** - DAH Solar has continuously maintained BloombergNEF Tier-1 status since at least Q2 2024, including Q1, Q3, and Q4 2025. Tier-1 classification is required by many PV project financing institutions, ensuring full bankability of the series and eliminating the risk of rejection by insurers or project lenders. - **PID and Hot-Spot Resistance** - The manufacturer declares enhanced resistance to Potential Induced Degradation and reduced hot-spot risk, attributed to the half-cut cell architecture and sealed enclosure design. Combined with a 25-year linear power warranty (down to >80.7% of Pnom), this provides predictable degradation performance for projects with long financing horizons. ## Cons - **Series Discontinued** - The DHM-72X10 (540–555 W) is designated as discontinued (introduced: 2022). This means no new production runs, a risk of being unable to match modules for system expansions, and potential difficulties with warranty replacements once distributor inventory is exhausted. - **PERC Technology in Market Decline** - In 2025–2026, the 540–555 W segment is dominated by TOPCon modules — such as the JA Solar DeepBlue 4.0 and Jinko Tiger Neo — which offer lower LID, higher bifacial efficiency, and better performance at cell temperatures above 50°C, at comparable market prices. Selecting PERC means investing in a technology with no continuation roadmap in the manufacturer's portfolio. ## About this series The DAH DHM-72X10 (540-555W) series are half-cell based modules designed for stable energy production under real-world operating conditions, rather than just in a laboratory setting. The use of **10 busbar technology** improves current collection from the cells and reduces internal losses, resulting in higher efficiency under typical installation loads. The modules also offer **good performance in low-light conditions** and limited partial shading performance - which is important on roofs with obstructions, chimneys, or east-west facing installations. Thanks to manufacturing processes focused on **reducing hot-spot risk** and **increasing PID resistance**, the DHM-72X10 series performs better in demanding environments and over long periods of operation. This makes it a good choice for installers and investors looking for modules for larger commercial roofs, PV farms, and projects where predictable output, durability, and reduced risk of claims are important. ## Notable figures - Efficiency of 20.9% matches the \*\*PERC 500-550W\*\* median - At 208.9 W/m² power density, roof space requirements are typical for \*\*PERC 500-550W\*\* panels - Temperature coefficient of -0.35%/°C matches the \*\*PERC 500-550W\*\* median - In the top 74% for efficiency among all PERC panels ## Questions ### Is the DAH Solar DHM-72X10 540–555W series still available for purchase? The DHM-72X10 series (540–555W) has been discontinued and is no longer actively available through regular distribution channels. Occasional units may surface from distributor stock, but these should not be relied upon when planning a new installation. For projects being executed today, it is advisable to consider newer DAH Solar series offering comparable power output and technology. ### What warranty does DAH Solar offer on the DHM-72X10 panels? The manufacturer provides a 12-year product warranty covering material and workmanship defects, along with a 25-year linear power output warranty. This means the module is guaranteed to maintain the minimum rated output power specified in the datasheet over a quarter of a century, with a small, steady linear degradation each year. These are standard warranty terms for Tier 1 class modules. ### What does the 10-busbar technology in the DHM-72X10 panels offer, and does it make a practical difference? The 10-busbar design means ten current-collecting conductive strips per cell instead of the conventional 5–6. Shorter current paths within each cell reduce resistive losses and lower mechanical stress on the glass. In practice, this translates into higher power output for the same module footprint and a reduced risk of cell microcracks during transportation and installation. ### How do DAH Solar DHM-72X10 panels perform under overcast conditions and low irradiance? Thanks to the half-cut cell architecture and PERC technology, the DHM-72X10 modules exhibit better low-light performance than standard panels — for example on cloudy days or during early morning and late evening hours. The half-cut cell design also limits the impact of partial shading, as shading on one half of the module does not completely suppress energy production from the other half. ### Are DHM-72X10 panels rated up to 555W suitable for a residential rooftop, or are they intended exclusively for utility-scale PV plants? Modules rated at 555W with dimensions of approximately 2279×1134 mm weigh close to 29 kg, making rooftop installation on a pitched roof demanding but feasible for an experienced crew. Due to their large physical size, they are more commonly selected for larger commercial rooftops and utility-scale PV plants. On a single-family home they can work well, provided there is sufficient roof area and an adequately rated mounting structure. ### Is the DHM-72X10 series resistant to the hot-spot effect and PID? Yes, the DHM-72X10 series is engineered with a reduced hot-spot risk thanks to its half-cut cell architecture, which lowers the current flowing through each individual cell. The manufacturer also claims enhanced resistance to PID (Potential-Induced Degradation), a form of degradation caused by the electrical potential difference relative to ground. This is particularly important for installations in humid climates and systems operating at high string voltages. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/EN-DHM-72X10-540-555W-ef961a2dc541.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +4.1 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +3.9 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, +3.9 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +3.8 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, +3.7 pp, +5 yr warranty | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +3.6 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +3.6 pp | | [DAH Solar DHM-T72X10/FS-545W](https://comparepv.com/panel/dah-dhm-t72x10-fs-545w) | 545 W | Very close match | | [DAH Solar DHM-T72X10/FS-550W](https://comparepv.com/panel/dah-dhm-t72x10-fs-550w) | 550 W | +10 W, +0.4 pp | | [DAH Solar DHM-72X10-555W](https://comparepv.com/panel/dah-dhm-72x10-555w) | 555 W | +15 W, +0.6 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +110 W, cooler, +4.3 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +105 W, cooler, +4.1 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +100 W, cooler, +3.9 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +95 W, cooler, +3.7 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +90 W, cooler, +3.5 pp | --- Source: https://comparepv.com/panel/dah-dhm-72x10-540w Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.