--- title: "Sunpro Power SPDG435-N108M10 435W Solar Panel - Specs & Review | ComparePV" description: "Sunpro Power SPDG435-N108M10 435W solar panel. Specs: 22.28% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunpro-spdg435-n108m10" updated: 2026-09-11 --- # Sunpro Power SPDG435-N108M10 Space saver, no clear weak spot 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Sunpro Power - **Model:** SPDG435-N108M10 - **Series:** 182 TOPCon BIFACIAL - **Rated power:** 435 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 435 W | 435 W | Typical | | | Module efficiency | 22.28% | 22.00% | Strong - top 24% | 5,403 | | Power density | 222.8 | 220.2 | Strong - top 17% | 5,150 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 23.3 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.28% | 22.00% | Strong - top 24% | 5,403 | | Power density | 222.8 | 220.2 | Strong - top 17% | 5,150 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 53.6 | 51.4 | Typical | 7,560 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **222.8 watts per square metre** - Top 17% of the TOPCon 400-450 W segment, against a median of 220.2. - **22.28% module efficiency** - Top 24% of the TOPCon 400-450 W segment, against a median of 22.00%. - **Best for:** Commercial, utility-scale and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 435 W - **Efficiency:** 22.28 % - **Voltage at Pmax (Vmp):** 31.94 V - **Current at Pmax (Imp):** 13.62 A - **Open-circuit voltage (Voc):** 38.43 V - **Short-circuit current (Isc):** 14.34 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 23.3 kg - **Area:** 1.95 m2 - **Power density:** 222.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 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:** 380 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5403 of 14005 | | Power density | 5150 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 7560 of 14005 | | Warranty | 21 of 14005 | ## About this series The Sunpro 182 TOPCon BIFACIAL series is an advanced solution based on N-type cells that redefine performance standards in modern photovoltaics. The key differentiator of this line is **bifacial power generation technology**, which allows for harvesting additional energy from reflected radiation, significantly increasing the profitability of ground-mounted investments. Thanks to the use of 182 mm wafers, these modules offer optimal electrical parameters while maintaining high power density. **The use of TOPCon cells** effectively minimizes light-induced and voltage-induced degradation phenomena, guaranteeing stable production for decades. This series solves the problem of limited space by providing more energy per square meter than standard monofacial modules. For users, the **low temperature coefficient** is key, ensuring high efficiency even on hot days when traditional panels lose effectiveness. The product is dedicated to professional solar farms and large industrial facilities where the lowest levelized cost of energy matters. What sets it apart from competing solutions is the **reinforced glass-glass construction**, which provides extreme resistance to corrosive factors and harsh weather conditions, forming a solid foundation for any renewable energy project. ## Notable figures - At 22.3% efficiency, this panel is on par with typical \*\*TOPCon 400-450W\*\* modules - Power density of 222.8 W/m² matches the \*\*TOPCon 400-450W\*\* median - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 400-450W\*\* median - At 23.3 kg, this panel is 1.3 kg heavier than the \*\*TOPCon 400-450W\*\* median (22.0 kg) - more demanding for installation crews - In the top 39% for efficiency among all TOPCon panels ## Questions ### How much extra energy does bifacial technology add in Sunpro 182 TOPCon BIFACIAL panels? By generating power from both the front and rear side, bifacial modules can yield anywhere from a few percent up to around twenty percent more energy compared to standard monofacial panels. The actual gain depends on ground albedo (e.g. light gravel, white roofing membrane) and mounting height above ground. Best results are achieved in ground-mounted installations on light-colored surfaces, which is why this series is particularly recommended for solar farms. ### What warranty comes with Sunpro 182 TOPCon BIFACIAL panels? Sunpro Power provides a 25-year product warranty along with a 30-year linear power output warranty. This means the module maintains a guaranteed power production level for three decades, while material and manufacturing defects are covered for a quarter century. This is one of the longer warranty periods currently available on the PV market. ### How does TOPCon cell technology differ from PERC in Sunpro 182 panels? TOPCon cells use an additional tunnel oxide layer that reduces charge carrier recombination, enabling higher efficiency than conventional PERC cells. In practice, this means higher power output from the same module area, a lower temperature coefficient, and reduced light- and voltage-induced degradation. For the customer, this translates into more stable energy production throughout the system's entire service life. ### Are Sunpro 182 TOPCon BIFACIAL panels suitable for large-scale solar farms? Yes, this series is designed primarily for professional solar farms and large industrial installations. The glass-glass construction provides high resistance to harsh weather and corrosion, while power output up to 480 Wp combined with bifacial technology helps achieve a lower levelized cost of energy (LCOE) than standard monofacial modules on the same ground footprint. ### How do Sunpro 182 TOPCon BIFACIAL panels perform in high summer temperatures? Thanks to the low temperature coefficient typical of N-type TOPCon cells, this series loses less power output on hot days than traditional PERC or polycrystalline panels. This matters especially for ground-mounted installations and large farms in warmer regions, where panel temperature can significantly exceed ambient temperature, affecting daily energy yield. ### Does the glass-glass construction of Sunpro 182 panels require special mounting equipment? Glass-glass panels are somewhat heavier than modules with a standard backsheet, so this should be factored into the choice of mounting structure, especially for large ground-mounted installations. The technology itself doesn't require non-standard mounting hardware, but it does provide higher mechanical resistance and better sealing, resulting in longer module lifespan under harsh weather conditions. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/cqc23024407739_1-27722831569c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +50 W, lighter, +2.0 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +50 W, cooler, +2.0 pp | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | +50 W, cooler, +2.0 pp | | [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | +50 W, cooler, +2.0 pp | | [Sunpro Power SPDG430-N108M10](https://comparepv.com/panel/sunpro-spdg430-n108m10) | 430 W | -0.3 pp | | [Sunpro Power SPDG440-N108M10](https://comparepv.com/panel/sunpro-spdg440-n108m10) | 440 W | +0.2 pp | | [Sunpro Power SPDG445-N108M10](https://comparepv.com/panel/sunpro-spdg445-n108m10) | 445 W | +10 W, +0.5 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +75 W, cooler, +2.7 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +60 W, cooler, +2.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +70 W, cooler, +2.4 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +55 W, cooler, +2.2 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +65 W, cooler, +2.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +65 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/sunpro-spdg435-n108m10 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.