--- title: "DAH Solar DHM-60X10/FS(BB)-440W 440W Solar Panel - Specs & Review | ComparePV" description: "DAH Solar DHM-60X10/FS(BB)-440W 440W solar panel. Specs: 20.39% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dah-dhm-60x10-fs-bb-440w" updated: 2026-09-11 --- # DAH Solar DHM-60X10/FS(BB)-440W Solid all-round for its segment 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** DAH Solar - **Model:** DHM-60X10/FS(BB)-440W - **Series:** DHM-60X10/FS(BB) - **Rated power:** 440 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 400-450 W (954 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 440 W | 410 W | Strong - top 15% | | | Module efficiency | 20.39% | 20.60% | Typical | 11,683 | | Power density | 203.9 | 206.2 | Typical | 11,625 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 23.8 kg | 22.0 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.39% | 20.60% | Typical | 11,683 | | Power density | 203.9 | 206.2 | Typical | 11,625 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 54.1 | 53.0 | Typical | 8,316 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 440 W - **Efficiency:** 20.39 % - **Voltage at Pmax (Vmp):** 34.80 V - **Current at Pmax (Imp):** 12.64 A - **Open-circuit voltage (Voc):** 41.20 V - **Short-circuit current (Isc):** 13.54 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:** 120 ### Physical - **Length:** 1903 mm - **Width:** 1134 mm - **Thickness:** 32 mm - **Weight:** 23.8 kg - **Area:** 2.16 m2 - **Power density:** 203.9 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 % - **Output after 30 years:** 361 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11683 of 14005 | | Power density | 11625 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 8316 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Patented Full-Screen Design** - The absence of a front aluminum frame rail eliminates the dirt accumulation and water pooling zone along the module's bottom edge. According to DAH Solar data, this translates to 6–15% higher energy yield in high-soiling environments or on low-tilt rooftops (\<15°), where conventional framed modules require more frequent cleaning. - **BNEF Tier 1 – Confirmed Bankability** - DAH Solar has maintained Tier 1 status on the BloombergNEF list continuously since at least Q1 2025 (confirmed by an official manufacturer statement). This ensures acceptance by financial institutions and secures investments requiring project financing or insurance. - **All-Black Variant (BB) for Premium Aesthetics** - The BB series features a uniformly black profile (cells, frame, and backsheet), eliminating the visual contrast of silver busbars and white backing visible in standard modules. A significant advantage for building-integrated installations with strict architectural requirements, where aesthetics influence heritage authority approval or developer standards. - **Half-Cut + Multi-Busbar – Shade Tolerance** - Splitting cells in half reduces internal currents and limits the impact of partial shading — power losses affect only half the string, not the entire string. Multi-busbar technology (≥9 busbars) shortens the current path within the cell, reducing series resistance and improving mechanical resistance to microcracks. ## Cons - **Series Discontinued** - The DHM-60X10/FS(BB) series has discontinued status. This limits the availability of replacement modules for future system expansion, complicates lot matching in large-scale projects, and increases the risk of inadequate service support over the 25-year power warranty horizon. - **PERC Technology – Older Generation** - PERC exhibits annual degradation of 0.6–0.8% and is susceptible to Light-Induced Degradation (LID) caused by boron-oxygen defects. By comparison, N-type TOPCon modules degrade at 0.4–0.5%/year with no LID — over a 25-year horizon, the difference in retained output power can amount to 3–5 percentage points. In 2025–2026, TOPCon has become the market standard in this power class. - **Efficiency Noticeably Below Peer Comparables** - The maximum module efficiency of this series is 21.08%, while two of its three direct peer comparables — Sunlike Solar SKT455 and IBC Solar 445–455 LS-TA2 — achieve 22.8% at the same 455 Wp rating. This represents an approximately 8% relative advantage in power density, meaning the competition delivers meaningfully higher yield per m² from the same roof area. ## About this series The DAH DHM-60X10/FS(BB) series was designed for stable energy production in environments where standard modules quickly lose efficiency due to dirt and standing water. A key feature is the **full-screen design** - without a traditional protruding frame, with a geometry that facilitates water and snow runoff, keeping the module cleaner for longer and reducing the need for maintenance. This is a significant advantage in installations with low roof pitches and in areas with high dust levels, where cleaning panels can be costly. The **all-black** variant is ideal where a consistent aesthetic is important - on modern homes and premium buildings. The use of **N-type TOPCon cells** supports high efficiency in various conditions and improves resistance to typical power drop mechanisms over time. Furthermore, the **half-cut** and **multi-busbar** architecture improves the module's performance in partial shading and enhances its mechanical strength, differentiating this series from many traditional residential constructions. ## Notable figures - At 20.4% efficiency, this panel is on par with typical \*\*PERC 400-450W\*\* modules - At 203.9 W/m² power density, roof space requirements are typical for \*\*PERC 400-450W\*\* panels - Temperature coefficient of -0.35%/°C matches the \*\*PERC 400-450W\*\* median - At 23.8 kg, this panel is 1.8 kg heavier than the \*\*PERC 400-450W\*\* median (22.0 kg) - more demanding for installation crews - Ranked #11683 out of 14005 panels for efficiency in the database ## Questions ### Is the DAH Solar DHM-60X10/FS(BB) series still available for purchase? The DHM-60X10/FS(BB) series has been discontinued and is no longer actively available through regular sales channels. Individual units may occasionally appear with distributors clearing remaining inventory. If you are interested in a similar Full-Screen technology with PERC cells and an all-black design, it is worth contacting your dealer about currently manufactured replacement models from DAH Solar's active product lineup. ### What is Full-Screen technology in the DHM-60X10/FS(BB) modules, and does it have a real impact on energy yield? The Full-Screen design eliminates the conventional protruding frame edge, allowing rainwater and snow to slide off freely rather than accumulating along the module border. In practice, this results in slower soiling of the module surface and a reduced need for cleaning. According to manufacturer data, this geometry can improve energy yield by 6–15% compared to conventional modules in locations with elevated dust levels or on rooftops with low tilt angles. ### What warranty coverage applies to the DAH Solar DHM-60X10/FS(BB) modules? The manufacturer provides a 12-year product warranty on the module and a 25-year power output warranty protecting against excessive performance degradation over time. DAH Solar holds Tier 1 manufacturer status, which reflects financial credibility and a demonstrated ability to fulfill long-term warranty obligations to customers. ### How does the DHM-60X10/FS(BB) module perform under partial shading from a chimney or antenna? The half-cut cell architecture divides the module into two independent electrical sections. When one portion of the module is shaded — for example by a chimney, antenna, or tree branch — the other half continues to operate without interruption. Additionally, the multi-busbar layout shortens current paths within each cell, reducing resistive losses. This is a significant advantage on rooftops where unobstructed solar irradiance throughout the entire day is difficult to achieve. ### What is the maximum power output of the DAH Solar DHM-60X10/FS(BB) panel, and what type of installation is it suited for? The peak module power is 455 Wp. The series is well suited for typical residential prosumer installations on single-family homes, particularly those with lower roof tilt angles or in locations with elevated dust levels, where the Full-Screen standard provides a tangible operational advantage. The BB (all-black) variant is additionally targeted at buildings where the aesthetic appearance of the installation is a priority. ### What is the difference between the BB variant of the DHM-60X10/FS series and the standard module in the same series? The BB (Black Back) designation indicates a fully black aesthetic — dark frame, black backsheet, and dark PERC cells. Unlike the variant with a white backsheet, the BB module is visually unobtrusive and does not create contrasting elements on the rooftop. This makes it the preferred choice for installations on modern homes and premium buildings where a uniform appearance of the roof surface is a priority. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/EN-DHM-60X10-FS-BB-440-455W-bfba67063628.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +50 W, cooler, +4.1 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +50 W, cooler, +4.1 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | Cooler, +3.9 pp, +5 yr warranty | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | Cooler, +3.9 pp, +5 yr warranty | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | Cooler, +3.9 pp, +5 yr warranty | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | Cooler, +3.9 pp, +5 yr warranty | | [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | Cooler, +3.9 pp, +5 yr warranty | | [DAH Solar DHT-M60X10-430W](https://comparepv.com/panel/dah-solar-dht-m60x10-430w) | 430 W | -10 W, -0.5 pp | | [DAH Solar DHT-M60X10-435W](https://comparepv.com/panel/dah-solar-dht-m60x10-435w) | 435 W | -0.2 pp | | [DAH Solar DHM-60X10/FS(BW)-445W](https://comparepv.com/panel/dah-dhm-60x10-fs-bw-445w) | 445 W | +0.2 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +120 W, cooler, +4.4 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +115 W, cooler, +4.2 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +110 W, cooler, +4.0 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +100 W, cooler, +4.0 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +100 W, cooler, +4.0 pp | | [Jinko Solar JKM545-54QL6-DV-F1-EU](https://comparepv.com/panel/jinko-solar-jkm545-54ql6-dv-f1-eu) | 545 W | +105 W, cooler, +3.9 pp | --- Source: https://comparepv.com/panel/dah-dhm-60x10-fs-bb-440w Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.