--- title: "Sunket New Energy SKT405M10 405W Solar Panel - Specs & Review | ComparePV" description: "Sunket New Energy SKT405M10 405W solar panel. Specs: 20.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunket-new-energy-skt405m10" updated: 2026-09-11 --- # Sunket New Energy SKT405M10 Warranty pick, heavy for its output 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** Sunket New Energy - **Model:** SKT405M10 - **Series:** SKT390~415M10 - **Rated power:** 405 W - **Cell technology:** PERC - **Bifacial:** yes ## 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 | 20.80% | 20.60% | Typical | 10,457 | | Power density | 207.4 | 206.2 | Typical | 10,626 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 23.4 kg | 22.0 kg | Weak - bottom 21% | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 17% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.80% | 20.60% | Typical | 10,457 | | Power density | 207.4 | 206.2 | Typical | 10,626 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 57.8 | 53.0 | Weak - bottom 21% | 11,405 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 17% | 21 | ### Strengths - **30 year performance warranty** - Top 17% of the PERC 400-450 W segment, against a median of 25 yrs. ### Watch out for - **57.8 kg per kWp** - Bottom 21% of the PERC 400-450 W segment, against a median of 53.0. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 405 W - **Efficiency:** 20.80 % - **Voltage at Pmax (Vmp):** 31.21 V - **Current at Pmax (Imp):** 12.98 A - **Open-circuit voltage (Voc):** 37.23 V - **Short-circuit current (Isc):** 13.87 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.275 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 23.4 kg - **Area:** 1.95 m2 - **Power density:** 207.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 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:** 344 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10457 of 14005 | | Power density | 10626 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 11405 of 14005 | | Warranty | 21 of 14005 | ## About this series The Sunket New Energy SKT390-415M10 photovoltaic module series utilizes advanced cells based on M10 silicon wafers, which translates into optimal power density while maintaining compact dimensions. Thanks to the use of **Half-Cut cell technology**, these panels handle the issue of partial shading much more effectively, minimizing energy losses in difficult installation conditions. The innovative multi-busbar design shortens the current flow path, which effectively reduces internal resistance and increases the module's resistance to micro-cracks. These models are primarily dedicated to single-family homeowners and small businesses looking for a balance between high efficiency and aesthetic design. A distinguishing feature of the series is its **excellent temperature coefficient**, guaranteeing stable operation even during hot summer days. Unlike standard solutions, the SKT390-415M10 series is characterized by increased resistance to potential-induced degradation (PID), ensuring long-term investment security and maintaining high yields for decades. The use of **high-efficiency M10 monocrystalline cells** allows for maximum utilization of the available roof area, offering more power per square meter than older types of panels. It is a solid solution for those who prioritize **reliability and modern module architecture** that will meet the demands of the Polish climate. ## Notable figures - At 20.8% efficiency, this panel is on par with typical \*\*PERC 400-450W\*\* modules - At 207.4 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 23.4 kg (1.4 kg above \*\*PERC 400-450W\*\* median of 22.0 kg), requires checking roof load capacity - #10457 for efficiency, #10419 for temperature performance out of 14005 panels ## Questions ### Is the Sunket SKT390-415M10 series still available for purchase? The SKT390-415M10 series has been discontinued by Sunket New Energy and is no longer actively manufactured. Stock units may still be available through select distributors, but availability is limited. If you need a current equivalent from the same manufacturer, ask about newer M10-based series featuring TOPCon technology or higher-wattage PERC options. ### What warranty does the Sunket SKT390-415M10 come with? Sunket provides a 15-year product warranty covering material and workmanship defects. The linear power output warranty is considerably longer at 30 years, during which Sunket guarantees the modules will maintain a defined minimum power yield. This exceeds the industry-standard 25-year power warranty and offers solid long-term protection for your investment. ### Is bifacial technology in the SKT390-415M10 worth it for a residential rooftop? Bifacial means the panel generates electricity from both sides — the rear surface captures light reflected off the mounting substrate, such as light-colored gravel, a white membrane, or snow. On a typical pitched roof with dark tiles, the bifacial gain is modest at 3–8%. The benefit is more pronounced on flat roofs with a bright substrate or in ground-mount systems. ### How does the Half-Cut PERC technology in the SKT390-415M10 handle partial shading? Half-cut cells split each mono PERC cell in two, so shading one row does not disable the entire module string. Combined with the 10-busbar Multi-Busbar design, the SKT390-415M10 maintains higher output when a chimney, dormer window, or antenna casts a shadow — outperforming standard full-cell modules in real-world residential rooftop conditions. ### How does the SKT415M10 perform on hot summer days — does high temperature significantly reduce power output? The SKT390-415M10 series has a power temperature coefficient of -0.35%/°C. When the panel heats to 65°C (40°C above STC), output drops by approximately 14%. In practice, a 415 Wp module on a very hot day may produce around 355–360 W — a typical result for mono PERC technology and not an indication of any defect. ### What type of installation is the Sunket SKT390-415M10 series best suited for? The SKT390-415M10 series, rated up to 415 Wp and built on M10 (182 mm) cells, is designed primarily for residential prosumer systems and small commercial rooftops. Its compact footprint makes handling and installation on pitched roofs straightforward, while the higher power density delivers more energy per square meter compared to older-generation modules. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/3-3PERC-182mm-390-415W-108cells-Double-Glass-Bifacial-Mono-f30e4d0c863f.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-455-MAH54Db](https://comparepv.com/panel/aiko-aiko-455-mah54db) | 455 W | +50 W, cooler, +2.5 pp | | [Longi Solar LR5-54HTH-455M](https://comparepv.com/panel/longi-lr5-54hth-455m) | 455 W | +50 W, cooler, +2.5 pp | | [Yingli YL455CF54 e/2](https://comparepv.com/panel/yingli-yl455cf54-e-2) | 455 W | +50 W, cooler, +2.5 pp | | [Einnova Solarline ESM-455T](https://comparepv.com/panel/einnova-solarline-esm-455t) | 455 W | +50 W, cooler, +2.5 pp | | [SunEvo Solar SE5-54HBC-455W](https://comparepv.com/panel/sunevo-solar-se5-54hbc-455w) | 455 W | +50 W, cooler, +2.5 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, cooler, +2.5 pp | | [Luxor Solar LX-455M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-455m-182r-96-gg) | 455 W | +50 W, cooler, +2.5 pp | | [Sunket New Energy SKT345M10](https://comparepv.com/panel/sunket-new-energy-skt345m10) | 345 W | -60 W, cooler, -3.1 pp | | [Sunket New Energy SKT350M10](https://comparepv.com/panel/sunket-new-energy-skt350m10) | 350 W | -55 W, cooler, -2.9 pp | | [Sunket New Energy SKT355M10](https://comparepv.com/panel/sunket-new-energy-skt355m10) | 355 W | -50 W, cooler, -2.6 pp | | [Sunket New Energy SKT360M10](https://comparepv.com/panel/sunket-new-energy-skt360m10) | 360 W | Cooler, -2.4 pp, -5 yr warranty | | [Sunket New Energy SKT365M10](https://comparepv.com/panel/sunket-new-energy-skt365m10) | 365 W | Cooler, -2.1 pp, -5 yr warranty | | [Sunket New Energy SKT385M10](https://comparepv.com/panel/sunket-new-energy-skt385m10) | 385 W | -20 W, -1.0 pp | | [Sunket New Energy SKT390M10](https://comparepv.com/panel/sunket-new-energy-skt390m10) | 390 W | -15 W, -0.8 pp | | [Sunket New Energy SKT395M10](https://comparepv.com/panel/sunket-new-energy-skt395m10) | 395 W | -10 W, -0.6 pp | | [Sunket New Energy SKT400M10](https://comparepv.com/panel/sunket-new-energy-skt400m10) | 400 W | -0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +105 W, cooler, +4.2 pp | --- Source: https://comparepv.com/panel/sunket-new-energy-skt405m10 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.