--- title: "Trina Solar TSM-DE09R.05-405 405W Solar Panel - Specs & Review | ComparePV" description: "Trina Solar TSM-DE09R.05-405 405W solar panel. Specs: 20.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/trina-solar-tsm-de09r-05-405" updated: 2026-09-11 --- # Trina Solar TSM-DE09R.05-405 Strong in heat, needs the roof space 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** Trina Solar - **Model:** TSM-DE09R.05-405 - **Series:** Vertex S - **Rated power:** 405 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) | 405 W | 410 W | Typical | | | Module efficiency | 20.30% | 20.60% | Weak - bottom 23% | 11,769 | | Power density | 202.7 | 206.2 | Weak - bottom 22% | 11,832 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 24% | 8,778 | | Weight (kg) | 21.8 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 | 20.30% | 20.60% | Weak - bottom 23% | 11,769 | | Power density | 202.7 | 206.2 | Weak - bottom 22% | 11,832 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 24% | 8,778 | | Weight per kWp | 53.8 | 53.0 | Typical | 7,890 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **-0.340 %/°C temperature coefficient** - Top 24% of the PERC 400-450 W segment, against a median of -0.350. ### Watch out for - **202.7 watts per square metre** - Bottom 22% of the PERC 400-450 W segment, against a median of 206.2. - **20.30% module efficiency** - Bottom 23% of the PERC 400-450 W segment, against a median of 20.60%. - **Best for:** Residential and commercial. - **Not ideal for:** Roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 405 W - **Efficiency:** 20.30 % - **Voltage at Pmax (Vmp):** 41.30 V - **Current at Pmax (Imp):** 9.82 A - **Open-circuit voltage (Voc):** 49.70 V - **Short-circuit current (Isc):** 10.50 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 144 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.8 kg - **Area:** 2.00 m2 - **Power density:** 202.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 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:** 332 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11769 of 14005 | | Power density | 11832 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 7890 of 14005 | | Warranty | 9798 of 14005 | ## About this series The Trina Solar Vertex S series was designed to extract maximum energy from standard roofs - without resorting to non-standard installation structures. The key lies in the waffle-pack 210-based platform and advanced high-density cell interconnection technology, enabling higher module power output while maintaining a manageable format. In practice, this means **easier adaptation to limited roof space** and faster installation, especially when logistics, weight, and crew safety are key factors. The Vertex S series also stands out for its approach to durability - selected variants feature **dual-glass construction**, which better withstands humidity, salinity, and aggressive environments, while also supporting longer-term parameter stability. Newer versions of the series incorporate **n-type i-TOPCon technology**, valued for its lower degradation rate and higher yield over the long term. For investors prioritizing aesthetics, a **full-black** version with a cohesive look is available. This is an excellent choice for homes, commercial micro-installations, and rooftops where competing panels often lose out on size, durability, or compatibility. ## Notable figures - At 20.3% efficiency, this panel is on par with typical \*\*PERC 400-450W\*\* modules - At 202.7 W/m², this panel generates 3.5 W/m² less per unit area than \*\*PERC 400-450W\*\* median (206.2 W/m²) - Temperature coefficient of -0.34%/°C matches the \*\*PERC 400-450W\*\* median - Ranked #11769 out of 14005 panels for efficiency in the database ## Questions ### How much power does a Trina Solar Vertex S series panel produce? Panels in the Vertex S series reach a maximum power output of up to 425 Wp. This is achieved through a platform based on 210 mm wafers and high-density cell interconnection, delivering high wattage without increasing module dimensions. This makes the panel well suited for both residential installations and small commercial arrays where the power-to-roof-area ratio matters. ### What warranty comes with Trina Solar Vertex S panels? The manufacturer provides a 15-year product warranty covering material and workmanship defects, along with a 25-year power warranty guaranteeing sustained performance over the module's lifetime. This is a standard offering from tier 1 manufacturers, a category that includes Trina Solar, one of the largest global PV module producers. ### How does the PERC technology in Vertex S differ from newer n-type panels? PERC cells in Vertex S use an additional rear passivation layer that improves light capture and boosts efficiency compared to conventional monocrystalline cells. Newer variants of the series, built on n-type i-TOPCon technology, offer even lower annual degradation and higher long-term energy yield, but PERC remains a proven, more affordable option with a solid price-to-performance ratio. ### Is the Vertex S panel bifacial? No, this Vertex S variant is a monofacial panel, optimized for standard mounting on pitched and flat roofs where generating energy from the rear side would provide no additional benefit. This makes it simpler to install and typically more affordable than bifacial versions, while still delivering high unit power output. ### What type of roof is Vertex S best suited for? Vertex S was designed for typical sloped roofs, prioritizing a compact form factor and easy installation without requiring non-standard mounting structures. Its manageable size and moderate weight make it easier to transport across the roof and install, making the series a good fit for single-family homes and small commercial installations with limited roof space. ### Is a full black version of Vertex S available? Yes, full black variants are available, featuring a uniform black frame, backsheet, and cells. This option is popular among installers and homeowners who prioritize a consistent, sleek visual appearance, particularly for street-facing roof installations, without having to sacrifice high module power output. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/DT-M-0035-A-Datasheet-VertexS-DE09R05-EN-2022-A-print-aabab61eb95f.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-455-MAH54Db](https://comparepv.com/panel/aiko-aiko-455-mah54db) | 455 W | +50 W, cooler, +3.0 pp | | [Longi Solar LR5-54HTH-455M](https://comparepv.com/panel/longi-lr5-54hth-455m) | 455 W | +50 W, cooler, +3.0 pp | | [Yingli YL455CF54 e/2](https://comparepv.com/panel/yingli-yl455cf54-e-2) | 455 W | +50 W, cooler, +3.0 pp | | [Einnova Solarline ESM-455T](https://comparepv.com/panel/einnova-solarline-esm-455t) | 455 W | +50 W, +3.0 pp, +5 yr warranty | | [SunEvo Solar SE5-54HBC-455W](https://comparepv.com/panel/sunevo-solar-se5-54hbc-455w) | 455 W | +50 W, cooler, +3.0 pp | | [Just Solar JST-EDMH-(445-465)W-TD (455W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-455w-class) | 455 W | +50 W, +3.0 pp, +5 yr warranty | | [Luxor Solar LX-455M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-455m-182r-96-gg) | 455 W | +50 W, cooler, +3.0 pp | | [Trina Solar TSM-DE09R.05-410](https://comparepv.com/panel/trina-solar-tsm-de09r-05-410) | 410 W | Very close match | | [Trina Solar TSM-DE09R-415](https://comparepv.com/panel/trina-solar-tsm-de09r-415) | 415 W | +10 W, +0.5 pp | | [Trina Solar TSM-DE09R.08-420](https://comparepv.com/panel/trina-solar-tsm-de09r-08-420) | 420 W | +15 W, +0.7 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +105 W, cooler, +4.7 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +90 W, cooler, +4.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +100 W, cooler, +4.4 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +85 W, cooler, +4.2 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +95 W, cooler, +4.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +95 W, cooler, +4.2 pp | --- Source: https://comparepv.com/panel/trina-solar-tsm-de09r-05-405 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.