--- title: "Sunlike Solar SKT440M12-96D4 440W Solar Panel - Specs & Review | ComparePV" description: "Sunlike Solar SKT440M12-96D4 440W solar panel. Specs: 22.02% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunlike-solar-skt440m12-96d4" updated: 2026-09-11 --- # Sunlike Solar SKT440M12-96D4 Light for its output, weak in heat 113 panels in the segment HJT 400-450 W ## Identity - **Manufacturer:** Sunlike Solar - **Model:** SKT440M12-96D4 - **Series:** SKT440~460M12-96D4 - **Rated power:** 440 W - **Cell technology:** HJT - **Bifacial:** yes ## How it compares Compared against segment HJT 400-450 W (113 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 440 W | 435 W | Typical | | | Module efficiency | 22.02% | 22.20% | Typical | 6,329 | | Power density | 220.2 | 221.6 | Typical | 6,328 | | Temperature coefficient | -0.260 | -0.240 | Weak - bottom 23% | 511 | | Weight (kg) | 21.5 kg | 23.0 kg | Strong - top 12% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.02% | 22.20% | Typical | 6,329 | | Power density | 220.2 | 221.6 | Typical | 6,328 | | Temperature coefficient | -0.260 | -0.240 | Weak - bottom 23% | 511 | | Weight per kWp | 48.9 | 52.4 | Strong - top 12% | 2,535 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **48.9 kg per kWp** - Top 12% of the HJT 400-450 W segment, against a median of 52.4. ### Watch out for - **-0.260 %/°C temperature coefficient** - Bottom 23% of the HJT 400-450 W segment, against a median of -0.240. - **Best for:** Weight-limited structures. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 440 W - **Efficiency:** 22.02 % - **Voltage at Pmax (Vmp):** 30.43 V - **Current at Pmax (Imp):** 14.47 A - **Open-circuit voltage (Voc):** 36.68 V - **Short-circuit current (Isc):** 15.26 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.260 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** HJT - **Cell count:** 96 - **Bifacial:** yes ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.5 kg - **Area:** 2.00 m2 - **Power density:** 220.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 88.0 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.38 % - **Output after 30 years:** 387 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 6329 of 14005 | | Power density | 6328 of 14005 | | Temperature coefficient | 511 of 14005 | | Weight | 2535 of 14005 | | Warranty | 21 of 14005 | ## About this series The Sunlike Solar SKT440-460M12-96D4 series consists of advanced photovoltaic modules based on **N-type TOPCon technology**, which set new standards for energy efficiency in variable weather conditions. Thanks to the use of an innovative bifacial double-glass design, these panels effectively utilize not only direct solar radiation but also light reflected from the ground, which significantly increases the total annual energy yield. A key differentiator of the series is the use of large-format **M12 silicon cells** and advanced SMBB architecture, which minimizes resistance losses and drastically increases the modules' resistance to micro-cracks and mechanical stress. This solution effectively eliminates the problem of rapid power degradation, offering investors long-term financial stability. These products are primarily dedicated to **demanding rooftop installations and photovoltaic farms**, where maximizing the use of available space is crucial. Compared to the competition, this series stands out with **excellent efficiency in low sunlight conditions** and an exceptionally low temperature coefficient. Choosing this technology guarantees the highest reliability and **above-average structural durability**, which translates into real savings and a faster return on investment in the Polish climate. ## Notable figures - At 22.0% efficiency, this panel is on par with typical \*\*HJT 400-450W\*\* modules - Power density of 220.2 W/m² matches the \*\*HJT 400-450W\*\* median - At -0.26%/°C, loses 0.02pp more power per degree than \*\*HJT 400-450W\*\* median (-0.24%/°C) - 21.5 kg weight - 1.5 kg lighter than \*\*HJT 400-450W\*\* median (23.0 kg), reducing installation effort - 85% bifaciality enables rear-side power generation, boosting yield by 4-13% on reflective surfaces ## Questions ### What warranty does the Sunlike Solar SKT440~460M12-96D4 series come with? The SKT440~460M12-96D4 series carries a 15-year product warranty and a 30-year power output warranty. For three decades, the manufacturer guarantees the modules will not exceed specified degradation thresholds. HJT technology's annual degradation rate of approximately 0.25–0.30% means real-world performance often outlasts the guaranteed period, making this series especially attractive for long-term ROI calculations. ### How does HJT cell technology in the SKT440~460M12-96D4 compare to standard PERC panels? HJT (Heterojunction Technology) cells stack amorphous and monocrystalline silicon layers, achieving higher efficiency and a better temperature coefficient (approx. -0.26%/°C) than PERC (-0.35%/°C). In real-world conditions, when a module heats up to 60–70°C in summer, the SKT440~460M12-96D4 loses significantly less power than a typical PERC panel. HJT also performs exceptionally well in low-light, diffuse-irradiance conditions common in northern European climates. ### Will the bifacial design of the SKT440~460M12-96D4 actually boost energy output on my roof? Yes, provided the surface below reflects light — a light-colored roofing membrane, white gravel, or snow cover. The bifacial double-glass construction captures reflected irradiance on the module's rear side. Ground-mounted systems typically see a bifacial gain of 5–15%; on pitched rooftops the gain is somewhat lower — around 3–8% — depending on tilt angle and roofing material albedo. ### What is the rated power of a single SKT440~460M12-96D4 panel, and how many do I need for a home? The maximum power output of the SKT440~460M12-96D4 series is 445 Wp under Standard Test Conditions (STC). A typical single-family home consuming around 4,500 kWh per year requires a system of approximately 5–6 kW, corresponding to 11–14 panels from this series. The exact count depends on roof orientation, shading, geographic location, and the MPPT configuration of the selected inverter. ### Do the SKT440~460M12-96D4 panels perform well in colder climates and overcast conditions? Yes. HJT's low temperature coefficient (approx. -0.26%/°C) cuts summer heat losses, but the technology equally excels on cold, bright winter days characteristic of Central European climates. The SKT440~460M12-96D4 series delivers above-average output under diffuse irradiance typical of autumn and winter months. The double-glass construction provides superior moisture resistance and handles repeated freeze-thaw cycles reliably. ### Are the SKT440~460M12-96D4 modules suited for commercial rooftops and utility-scale solar farms? Yes. Large-format M12 cells combined with a 96-cell SMBB architecture make the SKT440~460M12-96D4 a strong fit for commercial and utility-scale projects. High per-module wattage reaching 460 Wp reduces total module count and lowers balance-of-system (BoS) costs. The 30-year power warranty paired with HJT's inherently low degradation rate delivers a competitive LCOE for large-scale energy investors. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/1-1-skt440-460m12-96d4-fb-bmg-1-6mm-9d0e053f86e0.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +50 W, +2.5 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +50 W, +2.5 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +45 W, lighter, +2.3 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +45 W, +2.3 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +45 W, +2.3 pp | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | +45 W, +2.3 pp | | [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | +45 W, heavier, +2.3 pp | | [Sunlike Solar SKT420M10-108D6](https://comparepv.com/panel/sunlike-solar-skt420m10-108d6) | 420 W | -20 W, hotter, -1.0 pp | | [Sunlike Solar SKT425M10-108D6](https://comparepv.com/panel/sunlike-solar-skt425m10-108d6) | 425 W | -15 W, hotter, -0.8 pp | | [Sunlike Solar SKT445M10-108D6](https://comparepv.com/panel/sunlike-solar-skt445m10-108d6) | 445 W | Hotter, +0.3 pp | | [Sunlike Solar SKT450M10-108D6](https://comparepv.com/panel/sunlike-solar-skt450m10-108d6) | 450 W | +10 W, hotter, +0.5 pp | | [Sunlike Solar SKT455M10-108D6](https://comparepv.com/panel/sunlike-solar-skt455m10-108d6) | 455 W | +15 W, hotter, +0.8 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +70 W, cooler, +3.0 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +55 W, +2.8 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +65 W, cooler, +2.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +60 W, cooler, +2.5 pp | --- Source: https://comparepv.com/panel/sunlike-solar-skt440m12-96d4 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.