--- title: "Gamko New Energy GKA182M120-460 Solar Panel: Specs & Datasheet | ComparePV" description: "Gamko New Energy GKA182M120-460 solar panel. Specs: 21.24% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/gamko-new-energy-gka182m120-460" image: "https://comparepv.com/og/panel/gamko-new-energy-gka182m120-460.png" updated: 2026-09-11 --- # Gamko New Energy GKA182M120-460 Light for its output, weak in heat 1,096 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** Gamko New Energy - **Model:** GKA182M120-460 - **Series:** GKA182M120 - **Rated power:** 460 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 450-500 W (1096 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 460 W | 465 W | Typical | | | Module efficiency | 21.24% | 22.52% | Weak - bottom 3% | 9,103 | | Power density | 212.5 | 225.2 | Weak - bottom 3% | 9,006 | | Temperature coefficient | -0.360 | -0.290 | Weak - bottom 1% | 12,425 | | Weight (kg) | 21.0 kg | 24.0 kg | Strong - top 11% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.24% | 22.52% | Weak - bottom 3% | 9,103 | | Power density | 212.5 | 225.2 | Weak - bottom 3% | 9,006 | | Temperature coefficient | -0.360 | -0.290 | Weak - bottom 1% | 12,425 | | Weight per kWp | 45.7 | 52.2 | Strong - top 11% | 805 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **45.7 kg per kWp** - Top 11% of the TOPCon 450-500 W segment, against a median of 52.2. ### Watch out for - **-0.360 %/°C temperature coefficient** - Bottom 1% of the TOPCon 450-500 W segment, against a median of -0.290. Ranked 12,425th in the whole database. - **21.24% module efficiency** - Bottom 3% of the TOPCon 450-500 W segment, against a median of 22.52%. Ranked 9,103rd in the whole database. - **212.5 watts per square metre** - Bottom 3% of the TOPCon 450-500 W segment, against a median of 225.2. Ranked 9,006th in the whole database. - **Best for:** Weight-limited structures. - **Not ideal for:** Hot climates, tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 460 W - **Efficiency:** 21.24 % - **Voltage at Pmax (Vmp):** 35.47 V - **Current at Pmax (Imp):** 12.97 A - **Open-circuit voltage (Voc):** 42.68 V - **Short-circuit current (Isc):** 13.86 A ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 120 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 1909 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.0 kg - **Area:** 2.16 m2 - **Power density:** 212.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.46 % - **Output after 30 years:** 389 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 9103 of 14129 | | Power density | 9006 of 14129 | | Temperature coefficient | 12425 of 14129 | | Weight | 805 of 14129 | | Warranty | 21 of 14129 | ## Pros - **Bifacial + Half-Cut + Multi-Busbar** - The combination of half-cut cell architecture, multi-busbar technology, and bifacial PERC cells reduces resistive losses and improves tolerance to partial shading. Under Polish climatic conditions - where diffuse irradiance accounts for approximately 50-60% of total yield - this translates into measurably higher annual energy production compared to standard monofacial modules. - **30-Year Linear Power Warranty** - The manufacturer offers a 30-year linear power output warranty, matching peer-comparable Risen (RSM96-11 series) and exceeding the industry baseline of 25 years. The product warranty stands at 12 years, which is the market standard for modules in this class. - **M10 (182 mm) Format - Modern Cell Platform** - The 182 mm cell format is currently the dominant industrial standard (>60% of global module production in 2024-2025), ensuring stable component availability, compatibility with mainstream mounting structures, and continuity of the manufacturer's product roadmap. - **IEC Certifications and Mechanical Load Ratings** - The modules carry IEC 61215 and IEC 61730 certifications and are rated for wind loads of 2,400 Pa and snow loads of 5,400 Pa - values appropriate for Poland's climatic zone per PN-EN 1991-1-3 - eliminating the need for more costly reinforced racking systems. - **Up to 21.24% Efficiency - Competitive for PERC** - A maximum module efficiency of 21.24% places the top variant of this series on par with the Zonergy ZPM MH3-72 (21.16%) and above the typical average for bifacial PERC modules available on the European market (~20.5-21.0%). ## Cons - **PERC vs. TOPCon - Significant Efficiency Gap** - Peer-comparable modules - Risen RSM96-11 (23.0%) and SunKean SKT460M12 (23.02%) - achieve approximately 1.8 percentage points higher efficiency through N-type TOPCon technology. On an equivalent roof area, this translates to roughly 8% lower annual energy yield. TOPCon also offers a lower annual degradation rate (0.4-0.5% vs. 0.6-0.8% for PERC), a difference that compounds materially over the 30-year warranty period. - **Lower Bifaciality Factor** - Bifacial PERC cells carry a bifaciality factor of approximately 70%, whereas N-type TOPCon modules - such as those from Risen or SunKean in the same peer group - reach approximately 85%. On installations with a high-albedo surface beneath the array (light gravel, concrete, white roofing membrane), this difference translates to a 3-5% annual yield disadvantage for the GKA182M120. - **Gamko Not Listed on BNEF Tier-1** - Nantong Gamko New Energy, with a manufacturing capacity of approximately 1.2 GW in 2023, does not appear on Bloomberg NEF's Tier-1 module manufacturer lists, which typically require production capacity of 3-5 GW or above. For commercially financed projects, this may complicate debt financing or adversely affect portfolio risk assessment by banks and leasing institutions. ## About this series The GKA182M120 series of photovoltaic panels is an advanced solution based on **M10 cell technology**, which significantly increases the energy efficiency of the installation while maintaining optimal module dimensions. Thanks to the use of **Half-Cut design and Multi-busbar technology**, these panels perform excellently in difficult lighting conditions, effectively minimizing power losses resulting from partial shading or surface contamination. This solution also reduces internal material stress, which directly translates into a reduced risk of micro-cracks and a longer lifespan for the entire system. GKA182M120 is a series designed for investors seeking a balance between high performance and mechanical durability in variable climates. It stands out from the competition with a **low temperature coefficient**, which allows for the generation of stable energy yields even during record summer heat. It is an ideal choice for both individual prosumers and businesses looking for a fast return on investment while maintaining a high safety standard. The use of **advanced anti-reflective coatings** further supports maximum absorption of diffused light, making this series one of the most reliable and cost-effective solutions currently available on the photovoltaic market. ## Notable figures - Module efficiency of 21.2% is 1.3pp below average for \*\*TOPCon 450-500W\*\* panels (median: 22.5%) - 212.5 W/m² power density is 12.7 W/m² below \*\*TOPCon 450-500W\*\* median (225.2 W/m²) - requires larger installation area - At -0.36%/°C, loses 0.07pp more power per degree than \*\*TOPCon 450-500W\*\* median (-0.29%/°C) - Weight of 21.0 kg (3.0 kg below \*\*TOPCon 450-500W\*\* median of 24.0 kg) allows easier transport and roof mounting - #9103 for efficiency, #12425 for temperature performance out of 14129 panels ## Questions ### What warranty is provided for the Gamko New Energy GKA182M120 solar panels? The GKA182M120 series comes with a 12-year product warranty covering material and workmanship defects, as well as a 30-year linear power output warranty. This means the manufacturer guarantees that module performance will remain above a defined minimum threshold for three full decades. This is one of the longest power warranties available on the market, translating directly into lower investment risk and a more predictable return on investment. ### What does it mean that the GKA182M120 panel is bifacial, and does it make sense for a typical rooftop installation in Poland? Bifacial means the panel generates electricity from both the front and rear cell surfaces. On a typical pitched roof in Poland, the rear-side contribution is limited; however, realistic gains of 5-15% additional power output can be achieved in ground-mounted systems, flat-roof installations with light-colored membranes, or wherever reflective surfaces are present (snow cover, light-colored gravel). For a standard rooftop installation, bifaciality is a bonus feature rather than the primary purchasing argument. ### Do the Gamko GKA182M120 PERC panels perform well in summer when temperatures exceed 30°C? Yes. The PERC technology used in the GKA182M120 series features a low temperature coefficient, meaning power loss at elevated temperatures is smaller than with conventional monocrystalline cells. A nominally rated 460 W panel loses fewer percentage points of output per degree Celsius above 25°C compared to older designs. In Poland's increasingly warm summers, this directly translates into higher annual energy yields. ### How do the Half-Cut cell and Multi-busbar technologies in the GKA182M120 series improve system performance under partial shading? The Half-Cut cell design splits each cell in two, so shading on one portion of the module does not fully block the other half, as the two sub-circuits operate in parallel. Multi-busbar technology replaces a few wide conductive ribbons with many thin busbars, shortening the current path and reducing resistive losses. The practical result is that an installation on a roof partially obstructed by a chimney, dormer window, or antenna loses significantly less power than one using conventional full-size cells. ### Is the 460 Wp output of the GKA182M120 panel sufficient to power a typical single-family home? A single 460 Wp panel covers only a fraction of a household's energy demand. A typical prosumer installation for a home consuming 4,000-5,000 kWh per year requires between 8 and 14 modules from this series, yielding a system rated at 3.7-6.4 kWp. The exact number of panels depends on roof orientation, local solar irradiance, and annual consumption. The high unit power of 460 Wp in the GKA182M120 series allows more energy to be packed into a smaller roof area. ### Do the Gamko New Energy GKA182M120 panels hold the certifications required for the European market? Yes. Gamko New Energy, a manufacturer based in Nantong, China, certifies its modules in accordance with IEC 61215 and IEC 61730 standards, which are mandatory for legal sale and installation within the European Union. In addition, the products carry the CE marking and are certified for wind load resistance up to 2,400 Pa and snow load resistance up to 5,400 Pa, meeting the requirements of Polish climatic conditions and applicable building regulations. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/GKA182M120-440-460W-fde043d4d596.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +50 W, cooler, +3.8 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +35 W, cooler, +3.6 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +45 W, cooler, +3.5 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | +45 W, cooler, +3.5 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +30 W, cooler, +3.3 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +40 W, cooler, +3.3 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +40 W, cooler, +3.3 pp | | [Gamko New Energy GKA182M120 440W](https://comparepv.com/panel/gamko-new-energy-gka182m120-440w) | 440 W | -20 W, -0.9 pp | | [Gamko New Energy GKA182M120 445W](https://comparepv.com/panel/gamko-new-energy-gka182m120-445w) | 445 W | -15 W, -0.7 pp | | [Gamko New Energy GKA182M120 450W](https://comparepv.com/panel/gamko-new-energy-gka182m120-450w) | 450 W | -10 W, -0.5 pp | | [Gamko New Energy GKA182M120 455W](https://comparepv.com/panel/gamko-new-energy-gka182m120-455w) | 455 W | -0.2 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +100 W, cooler, +3.6 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +95 W, cooler, +3.4 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +90 W, cooler, +3.2 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +80 W, cooler, +3.2 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +80 W, cooler, +3.2 pp | --- Source: https://comparepv.com/panel/gamko-new-energy-gka182m120-460 Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.