--- title: "Gamko New Energy GKA182M120 450W Solar Panel: Specs & Datasheet | ComparePV" description: "Gamko New Energy GKA182M120 450W solar panel. Specs: 20.78% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/gamko-new-energy-gka182m120-450w" image: "https://comparepv.com/og/panel/gamko-new-energy-gka182m120-450w.png" updated: 2026-09-11 --- # Gamko New Energy GKA182M120 450W Light for its output, weak in heat 452 panels in the segment PERC 450-500 W ## Identity - **Manufacturer:** Gamko New Energy - **Model:** GKA182M120 450W - **Series:** GKA182M120 (440W-460W) - **Rated power:** 450 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 450-500 W (452 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 450 W | 460 W | Weak - bottom 12% | | | Module efficiency | 20.78% | 20.82% | Typical | 10,663 | | Power density | 207.9 | 208.5 | Typical | 10,576 | | Temperature coefficient | -0.360 | -0.350 | Weak - bottom 8% | 12,425 | | Weight (kg) | 21.0 kg | 24.5 kg | Strong - top 5% | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 20% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.78% | 20.82% | Typical | 10,663 | | Power density | 207.9 | 208.5 | Typical | 10,576 | | Temperature coefficient | -0.360 | -0.350 | Weak - bottom 8% | 12,425 | | Weight per kWp | 46.7 | 53.1 | Strong - top 5% | 1,258 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 20% | 21 | ### Strengths - **46.7 kg per kWp** - Top 5% of the PERC 450-500 W segment, against a median of 53.1. Ranked 1,258th in the whole database. - **30 year performance warranty** - Top 20% of the PERC 450-500 W segment, against a median of 25 yrs. ### Watch out for - **-0.360 %/°C temperature coefficient** - Bottom 8% of the PERC 450-500 W segment, against a median of -0.350. Ranked 12,425th in the whole database. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 450 W - **Efficiency:** 20.78 % - **Voltage at Pmax (Vmp):** 35.07 V - **Current at Pmax (Imp):** 12.83 A - **Open-circuit voltage (Voc):** 42.31 V - **Short-circuit current (Isc):** 13.72 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:** PERC - **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:** 207.9 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 % - **Output after 30 years:** 382 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10663 of 14129 | | Power density | 10576 of 14129 | | Temperature coefficient | 12425 of 14129 | | Weight | 1258 of 14129 | | Warranty | 21 of 14129 | ## Pros - **Bifacial Design: Tangible Energy Yield Gains** - Bifacial modules can generate 5-25% more energy than their monofacial counterparts, depending on ground albedo and mounting geometry. In the 440-460 W segment, bifacial capability at this price point remains a significant advantage for ground-mount installations and rooftops with light-colored surfaces. - **30-Year Linear Power Output Warranty** - The manufacturer provides a 30-year linear power output warranty, matching the highest standard in the segment - the same coverage offered by Risen Energy for the RSM96-11-440-460BNDG series (minimum 87.4% of rated power after 30 years). This ensures predictable energy yield throughout the full system lifetime. - **120 Half-Cut Cells + Multi-Busbar Technology** - Half-cut cell architecture reduces resistive losses by approximately 50% compared to full cells, while the multi-busbar (M Busbar) layout shortens the current path within each cell. In practice, this translates to improved partial-shading tolerance and lower thermal losses - critical for rooftops with chimneys or dormers. - **IEC 61215 and IEC 61730 Certification** - The modules carry compliance certification for both mechanical durability (IEC 61215) and electrical safety (IEC 61730), which are mandatory for grid connection in Poland and most European markets, as well as for insurance underwriting of prosumer PV systems. ## Cons - **Module Efficiency Up to 21.24% vs. 23%+ for Competitors** - The Risen RSM96-11-440-460BNDG achieves 23.00% module efficiency and the SunKean SKT440~460M12-96D4 reaches 23.02%, while the Gamko GKA182M120 tops out at 21.24%. The ~1.8 percentage-point gap means that competitors' modules will deliver measurably higher peak power from an identical roof area. - **PERC Technology vs. N-Type TOPCon in Competing Products** - Both direct peer comparables - the Risen RSM96-11-440-460BNDG and SunKean SKT440~460M12-96D4 - utilize N-type TOPCon technology. N-type cells exhibit lower LID/LeTID degradation rates and a more favorable temperature coefficient, resulting in higher annual energy yield across the full 30-year warranty horizon, particularly during hot summers. - **12-Year Product Warranty vs. 15 Years from Risen** - Risen Energy provides a 15-year product warranty on the directly comparable RSM96-11-440-460BNDG series, whereas Gamko covers only 12 years. The three-year difference carries meaningful risk implications for commercial projects financed through loans or leasing arrangements. - **No BNEF Tier-1 Status; Manufacturing Capacity of 1.2 GW/year** - Gamko New Energy does not appear on the BNEF Tier-1 module manufacturer list, and its annual production capacity stood at 1.2 GW in 2023, compared to tens of gigawatts for leading manufacturers such as Risen, LONGi, and JA Solar. For institutional investors and insurers, the absence of Tier-1 status may result in module acceptance difficulties or higher insurance premiums. ## About this series The Gamko New Energy GKA182M120 (440W-460W) series is designed for installations where stable energy production under real operating conditions is more important than just meeting catalog specifications. The use of monocrystalline PERC cells and a 120-cell layout promotes better performance under partial shading and allows for reduced losses when modules are not perfectly exposed to sunlight. This is a good choice if you want to increase energy production on a roof with a complex geometry or in locations where sunlight is often obstructed by chimneys or skylights. The **M Busbar technology** also deserves attention, as it improves current flow within the module and supports uniform cell operation. In practice, this translates to **higher conversion efficiency** and more predictable yields during transitional seasons. Furthermore, the modules offer **a long power warranty** and parameters that are conducive to operation in hot weather due to **a favorable temperature coefficient**. This series is suitable for homes, small businesses, and commercial projects where cost-effectiveness and consistent quality are key. ## Notable figures - At 20.8% efficiency, this panel is on par with typical \*\*PERC 450-500W\*\* modules - Power density of 207.9 W/m² matches the \*\*PERC 450-500W\*\* median - At -0.36%/°C, hot weather performance is typical for \*\*PERC 450-500W\*\* panels - Weight of 21.0 kg (3.5 kg below \*\*PERC 450-500W\*\* median of 24.5 kg) allows easier transport and roof mounting - Ranked #10663 out of 14129 panels for efficiency in the database ## Questions ### What is the warranty coverage for the Gamko New Energy GKA182M120 panels? The GKA182M120 series comes with a 12-year product warranty covering material and workmanship defects, as well as a 30-year power output warranty. This means the manufacturer guarantees that module efficiency will remain above a specified degradation threshold for three decades. This is one of the longest warranty horizons available in the PERC module segment for both residential prosumer and commercial installations. ### Are the Gamko GKA182M120 panels suitable for roofs with chimneys or dormers? Yes, the GKA182M120 series is a strong choice for roofs with complex geometry. The 120-cell half-cut layout combined with PERC technology significantly reduces losses under partial shading: when a portion of the module is shaded by a chimney or dormer, the remaining cells continue to operate efficiently. This is a notable advantage over older full-cell modules, which suffer substantially greater power losses even from minor shading. ### What does bifacial mean in the context of the Gamko GKA182M120 panels, and does it genuinely increase energy yield? Bifacial means the module generates current from both its front and rear surfaces by absorbing light reflected from the ground or rooftop substrate. For the GKA182M120 series, this can increase real-world energy yield by several to over ten percent, depending on the albedo of the surface beneath the modules and the mounting angle. The greatest benefit is achieved on high-reflectivity surfaces such as a white roofing membrane or light-colored gravel. ### What is the maximum power output of the Gamko GKA182M120 panel, and is it worth paying extra for the 460 W model over the 440 W? The GKA182M120 series spans a power range from 440 W to 460 W. Choosing the 460 W model delivers higher power density over the same roof area, which matters when available space is limited. With a fixed number of modules on a roof section, a 20 W per-panel difference translates into several hundred watts of additional system capacity, which over the course of a year can produce a noticeable gain in total energy generation. ### Does the M Busbar technology in the GKA182M120 series have a meaningful impact on panel longevity? Yes, M Busbar (multi-busbar) technology distributes current flow across a greater number of conductive pathways within each cell. This reduces the mechanical and thermal stress on each individual busbar, lowering the risk of micro-cracks and interconnect degradation over the long service life of the module. In practice, this translates into more stable power output and improved resistance to the stresses induced by cyclic temperature fluctuations. ### Do the Gamko GKA182M120 panels perform well in summer under high-temperature conditions? PERC modules such as the GKA182M120 series exhibit a favorable power temperature coefficient, typically around -0.35% per degree Celsius. This means that on hot days the power losses are lower than those seen with older polycrystalline technologies. For installations in Poland, where module temperatures can exceed 60 °C during summer, this parameter has a direct and measurable effect on annual energy yield. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/GKA182M120-440-460W-fde043d4d596.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +45 W, cooler, +4.0 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +40 W, cooler, +3.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +50 W, cooler, +3.7 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +50 W, cooler, +3.7 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +50 W, cooler, +3.7 pp | | [GCL GCL-NR10R/54BGDF](https://comparepv.com/panel/gcl-gcl-nr10r-54bgdf) | 500 W | +50 W, cooler, +3.7 pp | | [Gamko New Energy GKA182M120 440W](https://comparepv.com/panel/gamko-new-energy-gka182m120-440w) | 440 W | -10 W, -0.5 pp | | [Gamko New Energy GKA182M120 445W](https://comparepv.com/panel/gamko-new-energy-gka182m120-445w) | 445 W | -0.2 pp | | [Gamko New Energy GKA182M120 455W](https://comparepv.com/panel/gamko-new-energy-gka182m120-455w) | 455 W | +0.2 pp | | [Gamko New Energy GKA182M120 460W](https://comparepv.com/panel/gamko-new-energy-gka182m120-460w) | 460 W | +10 W, +0.5 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +110 W, cooler, +4.0 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +105 W, cooler, +3.8 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +100 W, cooler, +3.6 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +90 W, cooler, +3.6 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +90 W, cooler, +3.6 pp | | [Jinko Solar JKM545-54QL6-DV-F1-EU](https://comparepv.com/panel/jinko-solar-jkm545-54ql6-dv-f1-eu) | 545 W | +95 W, cooler, +3.5 pp | --- Source: https://comparepv.com/panel/gamko-new-energy-gka182m120-450w 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.