--- title: "Trina Solar TSM-635NEG19RC.20 635W Solar Panel - Specs & Review | ComparePV" description: "Trina Solar TSM-635NEG19RC.20 635W solar panel: 1 shop offer from 2 744 Kč. Specs: 23.50% efficiency, Monocrystalline cells." source: "https://comparepv.com/panel/trina-solar-tsm-635neg19rc-20" updated: 2026-10-05 --- # Trina Solar TSM-635NEG19RC.20 Space saver, no clear weak spot 1,086 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** Trina Solar - **Model:** TSM-635NEG19RC.20 - **Series:** Vertex N - **Rated power:** 635 W - **Cell technology:** TOPCon - **Bifacial:** yes ## Price offers Prices are the figure each shop printed, on that shop's side of VAT. | Shop | Market | Price | Per kWp | Availability | Last read | | --- | --- | --- | --- | --- | --- | | [eshop.helion.cz](https://comparepv.com/go/134979) | Czechia | 2 744 Kč net | 4 321.26 Kč/kWp | Not stated | Last read 6 Oct 01:06 | ## How it compares Compared against segment TOPCon 600-650 W (1086 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 635 W | 620 W | Strong - top 16% | | | Module efficiency | 23.50% | 22.80% | Strong - top 10% | 716 | | Power density | 235.1 | 227.7 | Strong - top 9% | 741 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 33.0 kg | 32.7 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.50% | 22.80% | Strong - top 10% | 716 | | Power density | 235.1 | 227.7 | Strong - top 9% | 741 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 52.0 | 53.1 | Typical | 5,408 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **235.1 watts per square metre** - Top 9% of the TOPCon 600-650 W segment, against a median of 227.7. Ranked 741st in the whole database. - **23.50% module efficiency** - Top 10% of the TOPCon 600-650 W segment, against a median of 22.80%. Ranked 716th in the whole database. - **Best for:** Utility-scale, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 635 W - **Efficiency:** 23.50 % - **Voltage at Pmax (Vmp):** 40.84 V - **Current at Pmax (Imp):** 15.55 A - **Open-circuit voltage (Voc):** 49.10 V - **Short-circuit current (Isc):** 16.44 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 - **Bifacial:** yes - **Bifacial gain:** 20.00 ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 33.0 kg - **Area:** 2.70 m2 - **Power density:** 235.1 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 555 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 716 of 14005 | | Power density | 741 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 5408 of 14005 | | Warranty | 21 of 14005 | ## About this series Trina Solar Vertex N modules are based on **N-type cells in i-TOPCon technology**, designed to maximize gains throughout the entire lifecycle of the installation. In practice, this means better performance at high temperatures and significantly more stable energy production over the long term - especially where predictability and low operational costs are key. A major highlight is the **dual-glass construction**, which enhances resistance to moisture, temperature fluctuations, and micro-cracks. Combined with **high bifaciality** (in two-sided variants), the Vertex N series enables a truly significant gain when modules operate above a light-colored background or on elevated structures. Vertex N is an excellent choice for utility-scale PV farms and commercial installations, where **lower BOS costs**, easier logistics, and compatibility with trackers are crucial. It stands out from the competition thanks to its refined platform for large-size cells and a focus on long-term reliability, rather than short-term paper gains. ## Notable figures - 23.5% module efficiency - 0.7pp better than the \*\*TOPCon 600-650W\*\* median of 22.8% - Power density of 235.1 W/m² packs 7.4 W/m² more into the same footprint vs \*\*TOPCon 600-650W\*\* median (227.7 W/m²) - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 600-650W\*\* median - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof - In the top 5% for efficiency among all TOPCon panels ## Questions ### What is the warranty on Trina Solar Vertex N panels? Trina Solar Vertex N panels come with a 12-year product warranty and a 30-year linear power warranty. First-year power degradation is capped at 1%, followed by a maximum annual decline of 0.4% in subsequent years. This means the module still delivers a substantial share of its rated power after 30 years, giving PV farm and commercial installation investors a predictable return and lower long-term risk. ### How does i-TOPCon technology in the Vertex N differ from classic PERC panels? N-type cells built with i-TOPCon technology, used in the Vertex N series, have lower recombination losses and perform better at high temperatures than classic P-type PERC cells. In practice this means higher efficiency (up to 740 Wp), slower power degradation over time, and more stable energy output throughout the system's lifetime, especially in hot climates or high-irradiance sites. ### Are Vertex N panels bifacial? This particular model in the Vertex N series is a mono-facial variant - it generates power only from the front side of the module. Trina Solar also offers bifacial versions within the same series, which can deliver a higher yield when mounted over a reflective surface or on elevated racking. The choice between mono-facial and bifacial depends on the installation type - sloped roofs rarely capture the full bifacial gain, so the mono-facial variant is often the more cost-effective choice there. ### What installations are Trina Solar Vertex N panels rated up to 740 Wp best suited for? Vertex N panels rated up to 740 Wp are designed mainly for utility-scale PV farms and large commercial installations, where lowering BoS (Balance of System) cost per watt installed matters most. Larger dimensions and higher unit power mean fewer modules, mounts, and cables per kW, simplifying logistics, tracker-mounted installation, and reducing overall install time compared to smaller panels. ### Is Trina Solar a reliable Tier 1 manufacturer, and is the Vertex N series a good investment? Yes, Trina Solar is one of the world's largest PV module manufacturers, classified as Tier 1 - meaning financial stability, continuous production, and a proven ability to honor long-term warranties. The company is headquartered in China and has extensive experience in utility-scale solar. Combined with the Vertex N series' 30-year power warranty, this gives investors a high degree of confidence in the system's durability and profitability. ### How does the dual-glass construction in the Vertex N improve durability in harsh climates? The dual-glass construction, where cells are protected by glass on both sides instead of a rear backsheet, significantly improves resistance to moisture, microcracks, and PID degradation. As a result, Vertex N panels better withstand large temperature swings, high humidity, and coastal or industrial environments. This design translates into a longer module lifespan and lower failure risk over the 30-year period covered by the power warranty. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/DT-M-0045_Datasheet_Vertex_NEG19RC20_EN_2025_B-c6570a1b7115.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +1.7 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +45 W, lighter, +1.7 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +40 W, lighter, +1.5 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +1.5 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +35 W, lighter, +1.3 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +35 W, lighter, +1.3 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +1.3 pp | | [Trina Solar TEB-NEGA6ND.48-420 (Silver Grey, RAL9018)](https://comparepv.com/panel/trinasolar-evergreen-shanghai-pv-tech-co-ltd-teb-nega6nd-48-420-silver-grey-ral9018) | 420 W | -215 W, -8.0 pp, -5 yr warranty | | [Trina Solar TEB-NEGA6ND.48-425 (Silver Grey, RAL9018)](https://comparepv.com/panel/trinasolar-evergreen-shanghai-pv-tech-co-ltd-teb-nega6nd-48-425-silver-grey-ral9018) | 425 W | -210 W, -7.8 pp, -5 yr warranty | | [Trina Solar TEB-NEGA6ND.48-430 (Silver Grey, RAL9018)](https://comparepv.com/panel/trinasolar-evergreen-shanghai-pv-tech-co-ltd-teb-nega6nd-48-430-silver-grey-ral9018) | 430 W | -205 W, -7.6 pp, -5 yr warranty | | [Trina Solar TEB-NEGA6ND.48-545 (Green, RAL6001)](https://comparepv.com/panel/trinasolar-evergreen-shanghai-pv-tech-co-ltd-teb-nega6nd-48-545-green-ral6001) | 545 W | -90 W, -3.3 pp, -5 yr warranty | | [Trina Solar TEB-NEGA6ND.48-550 (Green, RAL6001)](https://comparepv.com/panel/trinasolar-evergreen-shanghai-pv-tech-co-ltd-teb-nega6nd-48-550-green-ral6001) | 550 W | -85 W, -3.2 pp, -5 yr warranty | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +65 W, cooler, +1.5 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +60 W, cooler, +1.4 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +35 W, cooler, +1.3 pp | --- Source: https://comparepv.com/panel/trina-solar-tsm-635neg19rc-20 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.