--- title: "DualSun DS500-132M10B-01 500W Solar Panel - Specs & Review | ComparePV" description: "DualSun DS500-132M10B-01 500W solar panel. Specs: 20.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dualsun-ds500-132m10b-01" updated: 2026-09-11 --- # DualSun DS500-132M10B-01 Middle of its segment, heavy for its output 706 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** DualSun - **Model:** DS500-132M10B-01 - **Series:** FLASH 500 Half-Cut Glass-Glass - **Rated power:** 500 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) | 500 W | 535 W | Weak - bottom 4% | | | Module efficiency | 20.80% | 20.90% | Typical | 10,457 | | Power density | 210.6 | 209.0 | Typical | 9,583 | | Temperature coefficient | -0.360 | -0.350 | Weak - bottom 9% | 12,345 | | Weight (kg) | 30.2 kg | 28.4 kg | Weak - bottom 8% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.80% | 20.90% | Typical | 10,457 | | Power density | 210.6 | 209.0 | Typical | 9,583 | | Temperature coefficient | -0.360 | -0.350 | Weak - bottom 9% | 12,345 | | Weight per kWp | 60.4 | 53.0 | Weak - bottom 8% | 12,454 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **60.4 kg per kWp** - Bottom 8% of the PERC 500-550 W segment, against a median of 53.0. Ranked 12,454th in the whole database. - **-0.360 %/°C temperature coefficient** - Bottom 9% of the PERC 500-550 W segment, against a median of -0.350. Ranked 12,345th in the whole database. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Weight-limited structures and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 500 W - **Efficiency:** 20.80 % - **Voltage at Pmax (Vmp):** 37.84 V - **Current at Pmax (Imp):** 13.22 A - **Open-circuit voltage (Voc):** 45.60 V - **Short-circuit current (Isc):** 14.07 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 132 ### Physical - **Length:** 2094 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 30.2 kg - **Area:** 2.37 m2 - **Power density:** 210.6 Wp/m2 ### Warranty and degradation - **Product warranty:** 30 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:** 425 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10457 of 14005 | | Power density | 9583 of 14005 | | Temperature coefficient | 12345 of 14005 | | Weight | 12454 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Glass-Glass Construction** - Using two layers of tempered glass instead of a rear backsheet delivers higher mechanical resistance (load rating >5,400 Pa per IEC standards), eliminates the risk of potential-induced degradation (PID), and provides significantly better protection against moisture ingress and corrosion — critical for installations exposed to harsh weather conditions. - **30-Year Product and Power Warranty** - DualSun offers a 30-year warranty covering both the product and power output (>85% Pn after 30 years). Compared to peer comparables such as the Emmvee GRAPHITE and Lina Energy LEPV 132, where the industry standard remains 25 years, this represents a meaningful advantage for investors calculating the total LCOE of their system. - **94.7% Recyclability Rate** - The glass-glass construction eliminates the hard-to-process Tedlar backsheet laminate, resulting in a 94.7% recyclability rate. This places the module among the most sustainable products on the market and facilitates compliance with upcoming EU circular-economy regulations, including the WEEE Directive. - **132 Half-Cut PERC Cells** - Half-cut cell technology reduces resistive losses and mitigates the impact of partial shading by allowing both halves of the string to operate independently. In practice, this translates to lower yield losses caused by shading from chimneys, antennas, or adjacent module rows. - **European Manufacturer with ISO 9001 Certification** - DualSun manufactures its modules in France (Jujurieux plant, ISO 9001 certified), which — given current supply-chain risk concerns and EU procurement preferences for locally produced goods — represents a concrete competitive advantage over panels sourced from East Asia. ## Cons - **Discontinued Series — Limited Availability** - The FLASH 500 Half-Cut Glass-Glass (PERC) series was in production for approximately one year (2022–2023) before being superseded by the TOPCon variant. This means no new modules are available for future system expansions, after-sales service may be difficult to obtain, and mixing these modules with newer panels carrying different electrical parameters carries a risk of mismatch. - **20.8% Efficiency Below Peer Comparables** - At 500 Wp with an efficiency of 20.8%, this module underperforms its direct competitors: the Emmvee GRAPHITE (21.03%), the Lina Energy LEPV 132 HC ICON PLUS (21.06%), and significantly trails the Gokin GK-3-54HGF (24.5%). Lower efficiency means a larger roof area is required to achieve the same energy yield. - **PERC Technology — Previous Generation** - PERC cells exhibit higher light-induced degradation (LID) and light- and elevated-temperature-induced degradation (LeTID) rates, as well as a less favorable temperature coefficient of power, compared to newer N-type TOPCon cells — the technology DualSun adopted when replacing this series. In temperate climates, the difference in annual energy yield can reach 2–4%. ## About this series The **DualSun FLASH 500 Half-Cut Glass-Glass** series are photovoltaic panels distinguished by their glass-glass construction instead of the traditional glass and backsheet laminate - this design provides exceptional mechanical strength and significantly longer module lifespan. The use of **bifacial** technology allows for energy generation from both the front and back of the panel, which, under favorable conditions, can increase energy yield by up to 30% compared to monofacial panels. **Half-Cut** technology reduces resistive losses and improves the performance of the installation in partially shaded conditions. A key advantage of this series is its **recyclability rate of 94.7%** - thanks to the use of glass instead of a backsheet, the module materials are much easier to recover at the end of their lifespan. The panels also have very high resistance to mechanical loads, corrosion, and moisture. This solution is designed for roof and ground-mounted installations that require durability, high performance in variable solar conditions, and compliance with **sustainable development** principles. ## Notable figures - Efficiency of 20.8% matches the \*\*PERC 500-550W\*\* median - Power density of 210.6 W/m² matches the \*\*PERC 500-550W\*\* median - At -0.36%/°C, hot weather performance is typical for \*\*PERC 500-550W\*\* panels - At 30.2 kg (1.8 kg above \*\*PERC 500-550W\*\* median of 28.4 kg), requires checking roof load capacity - #10457 for efficiency, #12345 for temperature performance out of 14005 panels ## Questions ### Is the DualSun FLASH 500 Half-Cut Glass-Glass series still available for purchase? The DualSun FLASH 500 Half-Cut Glass-Glass series based on PERC technology has been discontinued and is no longer available as a new product. It has been succeeded by a newer version utilizing TOPCon cells, which offers higher efficiency and improved warranty terms. Before purchasing, it is advisable to contact your distributor to check whether any remaining stock is available. ### What warranty is provided for the DualSun FLASH 500 Half-Cut Glass-Glass panels? The manufacturer provides a 30-year product warranty and a 30-year power output warranty. Such an extended coverage period is made possible in part by the glass-glass construction, which protects the cells against moisture ingress and corrosion far more effectively than a conventional polymer backsheet. This is one of the longest warranty packages available in the photovoltaic module market. ### How does glass-glass construction differ from standard glass-backsheet panels? In the DualSun FLASH 500 Half-Cut Glass-Glass panels, a second glass pane replaces the conventional polymer backsheet. This design delivers superior mechanical strength, enhanced protection against moisture and corrosion, and an extended module service life. An additional benefit is a high recyclability rate of 94.7%, since glass is far easier to recover and reprocess than the polymers used in backsheets. ### What is half-cut cell technology in the DualSun FLASH 500 panels, and does it make a difference under partial shading conditions? Half-cut technology involves laser-cutting each PERC cell into two equal halves, which reduces internal resistance and lowers resistive power losses. In practice, the panel is less susceptible to partial shading — from a chimney or antenna, for example — because a shaded section does not suppress the output of the entire module to the same extent as it would in a conventional full-size cell configuration. ### Are the DualSun FLASH 500 Half-Cut Glass-Glass panels bifacial? No, the DualSun FLASH 500 Half-Cut Glass-Glass series in its PERC variant is not a bifacial module. Energy is harvested exclusively from the front side. In this design, the glass-glass construction serves a protective rather than a power-generation purpose, unlike in true bifacial modules. If bifaciality is a priority for your project, newer DualSun models based on TOPCon technology are worth considering. ### Why is the 94.7% recyclability rate of the DualSun FLASH 500 panels relevant when selecting a PV installation? Typical glass-backsheet panels achieve recyclability rates in the range of 75–85%, largely because polymer backsheet materials are difficult to recover. The DualSun FLASH 500 Glass-Glass reaches 94.7% because both encapsulating layers are glass — a material that is fully recyclable through established processes. For investors guided by sustainability principles or ESG requirements, this represents a concrete, measurable advantage over standard modules. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/dualsun-fr-fiche-technique-flash-500-half-cut-glass-glass-8a2bd78a5ea0.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +4.2 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +4.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +3.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +3.7 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, lighter, +3.7 pp | | [Gamko New Energy GKA120N-PRO-590W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-590w) | 590 W | +90 W, cooler, +3.0 pp | | [Gamko New Energy GKA120N-PRO-585W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-585w) | 585 W | +85 W, cooler, +2.8 pp | | [Bisol BGO 580](https://comparepv.com/panel/bisol-bgo-580) | 580 W | +80 W, cooler, +2.7 pp | | [Gamko New Energy GKA120N-PRO-580W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-580w) | 580 W | +80 W, cooler, +2.6 pp | --- Source: https://comparepv.com/panel/dualsun-ds500-132m10b-01 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.