--- title: "Gamko New Energy GKA182M108-400W Solar Panel: Specs & Datasheet | ComparePV" description: "Gamko New Energy GKA182M108-400W solar panel. Specs: 20.48% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/gamko-new-energy-gka182m108-400w" image: "https://comparepv.com/og/panel/gamko-new-energy-gka182m108-400w.png" updated: 2026-09-11 --- # Gamko New Energy GKA182M108-400W Light for its output, weak in heat 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** Gamko New Energy - **Model:** GKA182M108-400W - **Series:** GKA182M108 - **Rated power:** 400 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) | 400 W | 410 W | Weak - bottom 9% | | | Module efficiency | 20.48% | 20.60% | Typical | 11,548 | | Power density | 204.8 | 206.2 | Typical | 11,450 | | Temperature coefficient | -0.360 | -0.350 | Weak - bottom 15% | 12,425 | | Weight (kg) | 19.5 kg | 22.0 kg | Strong - top 8% | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 17% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.48% | 20.60% | Typical | 11,548 | | Power density | 204.8 | 206.2 | Typical | 11,450 | | Temperature coefficient | -0.360 | -0.350 | Weak - bottom 15% | 12,425 | | Weight per kWp | 48.8 | 53.0 | Strong - top 8% | 2,446 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 17% | 21 | ### Strengths - **48.8 kg per kWp** - Top 8% of the PERC 400-450 W segment, against a median of 53.0. Ranked 2,446th in the whole database. - **30 year performance warranty** - Top 17% of the PERC 400-450 W segment, against a median of 25 yrs. ### Watch out for - **-0.360 %/°C temperature coefficient** - Bottom 15% of the PERC 400-450 W segment, against a median of -0.350. - **Best for:** Residential and commercial. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 400 W - **Efficiency:** 20.48 % - **Voltage at Pmax (Vmp):** 31.40 V - **Current at Pmax (Imp):** 12.74 A - **Open-circuit voltage (Voc):** 37.49 V - **Short-circuit current (Isc):** 13.63 A ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 43 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:** 19.5 kg - **Area:** 1.95 m2 - **Power density:** 204.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 80.0 % - **Output after 30 years:** 320 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11548 of 14129 | | Power density | 11450 of 14129 | | Temperature coefficient | 12425 of 14129 | | Weight | 2446 of 14129 | | Warranty | 21 of 14129 | ## Pros - **Bifacial design increases energy yield** - The use of bifacial cells delivers an additional 5-15% energy gain from rear-side reflection, depending on ground albedo (white membrane, gravel, concrete). In the Polish climate, where diffuse albedo coverage is typical, this represents a tangible advantage over the monofacial variant of the peer-comparable Aptos Solar DNA 108-Monofacial at the same peak power of 415 Wp. - **Peak efficiency of 21.25% - in the top tier of 108-cell PERC modules** - The maximum module efficiency (21.25%) is identical to that of the LEDVANCE M395~415P54LM-BF-F3 and Aptos Solar DNA 108, only 0.03 percentage points below the segment leader AE Solar AURORA AE MD-108 (21.28%). The series therefore sits in the top quintile of efficiency for the 108-cell PERC format. - **30-year linear power output warranty** - The manufacturer offers a 30-year linear power warranty, as stated on gamkosolar.com. This is a standout specification for a PERC series; the market standard is 25 years (e.g., Trina Solar, JA Solar in comparable price segments), which meaningfully extends the horizon of guaranteed energy production for prosumers. - **IEC 61215 and IEC 61730 certified** - The series holds compliance certification to IEC 61215 (performance and durability testing) and IEC 61730 (electrical safety), as well as ISO 9001 and ISO 14001. These certifications are a mandatory requirement for subsidies under the Mój Prąd program and for procurement by installers contracting with financial institutions. - **PID resistance and low LID degradation** - The module is rated as PID (Potential Induced Degradation) resistant - a key attribute for installations operating at higher string voltages (1000 V systems). Combined with PERC technology that limits LID (Light Induced Degradation), this translates into more stable long-term performance under the variable irradiance conditions typical of the Polish climate. ## Cons - **No BNEF Tier 1 status** - Gamko New Energy does not appear on Bloomberg NEF Tier 1 lists (verified Q1-Q2 2026). This makes project financing more difficult - banks and investment funds routinely require modules from BNEF Tier 1 manufacturers as a prerequisite for bankability in project finance and leasing structures. - **PERC technology, not TOPCon / N-type** - The market is broadly transitioning to N-type TOPCon cells (lower temperature coefficient, near-zero LID, higher bifacial gain of up to 25-30%). The GKA182M108 series is based on the older P-type PERC architecture, which over a 25-30 year horizon implies a relatively higher linear degradation rate and lower yield at elevated operating temperatures. - **12-year product warranty - below premium tier** - The product warranty stands at 12 years; leading manufacturers in comparable price segments (Jinko Solar, LONGi, REC Group) offer 15-25 years. For commercial installations with PPA agreements or operating leases, a shorter product warranty period may become a negotiating point that reduces asset valuation. ## About this series The Gamko New Energy GKA182M108 series consists of monocrystalline modules designed to maximize energy output even when roof conditions are not ideal. The use of a **bifacial design** allows for "collecting" additional energy from the back side as well, especially in areas where the ground or roof membrane reflects light. The modules use a **PERC** technology, ensuring good efficiency even in low-light conditions and during transitional periods, which is particularly important in the Polish climate. In practice, this series solves two common problems for investors: decreased production on cloudy days and the risk of faster degradation. The manufacturer emphasizes **PID resistance**, which helps stabilize parameters over the long term. The use of glass with an anti-reflective coating also supports operation in diffuse light. GKA182M108 is suitable for both residential and commercial installations, where **high performance in challenging conditions** and reliable, predictable energy production over the years are key. ## Notable figures - Efficiency of 20.5% matches the \*\*PERC 400-450W\*\* median - Power density of 204.8 W/m² matches the \*\*PERC 400-450W\*\* median - Temperature coefficient of -0.36%/°C matches the \*\*PERC 400-450W\*\* median - 19.5 kg weight - 2.5 kg lighter than \*\*PERC 400-450W\*\* median (22.0 kg), reducing installation effort - Ranked #11548 out of 14129 panels for efficiency in the database ## Questions ### What warranty is provided for the Gamko New Energy GKA182M108 panels? The GKA182M108 series comes with a 12-year product warranty and a 30-year power output warranty. This means that after 30 years of operation, the module should retain at least 80% of its nominal output power. This is one of the longer warranties available in this product class and a compelling argument when calculating return on investment over a multi-year horizon. ### What does it mean that the GKA182M108 panel is bifacial, and does it make sense on a pitched roof? A bifacial panel has active cells on both sides of the module - the rear side captures irradiance reflected from the ground surface or roofing membrane. On a pitched roof the gain is smaller than in a ground-mounted installation, but a light-colored membrane, gravel ballast, or light-colored roof tiles can increase yield by several percent. The greatest benefits of bifacial technology are seen when the module is mounted with sufficient clearance above a higher-albedo surface. ### What is the wattage of the Gamko GKA182M108 panel, and is 415 Wp a strong result for PERC technology? The peak power of the GKA182M108 series is 415 Wp, with a module efficiency of approximately 20.8%. For a PERC module based on 182 mm cells in a 108-cell configuration, this is a fully competitive result. Older PERC modules of this class achieved 390-400 Wp, placing the GKA182M108 at the upper end of the efficiency range for this technology. ### Will the Gamko GKA182M108 panels perform well in Poland's climate - under overcast skies and in freezing temperatures? Yes. PERC technology combined with anti-reflective coated glass improves performance under diffuse light conditions, which is directly relevant in Poland given its high proportion of overcast days. The module withstands snow loads of up to 5,400 Pa and wind loads of up to 2,400 Pa, meeting the requirements for the vast majority of locations in the country. Low temperatures additionally have a beneficial effect on the efficiency of silicon cells. ### What is PID resistance and why does it matter for the GKA182M108 series? PID (Potential Induced Degradation) is a gradual loss of module power caused by leakage current flowing between the cells and the module frame. The GKA182M108 series is engineered with resistance to this effect, protecting modules particularly in systems operating at higher system voltages or in humid environments. PID resistance translates into more stable and predictable energy production throughout the full 30-year warranty period. ### Are the Gamko New Energy GKA182M108 panels still available on the market? Yes, the GKA182M108 series remains an active product in the portfolio of manufacturer Nantong Gamko New Energy and has not been discontinued. The modules can be purchased through distributors and photovoltaic wholesalers operating in Poland. Given that the products are imported from China, it is advisable to check with your distributor in advance regarding current stock availability and estimated lead times, which may vary depending on demand. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/GKA182M108-395-415W-6b8009d42b20.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Luxor Solar LX-440M/182-108+GG](https://comparepv.com/panel/luxor-solar-lx-440m-182-108-gg) | 440 W | Cooler, heavier, +2.6 pp | | [Just Solar JST-EDMH-(445-465)W-TD (450W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-450w-class) | 450 W | +50 W, cooler, +2.6 pp | | [Q-SUN Solar QNN182-HG450-54](https://comparepv.com/panel/qn-solar-pv-limited-qnn182-hg450-54) | 450 W | +50 W, cooler, +2.6 pp | | [Huayao HY440-N108BDD](https://comparepv.com/panel/huayao-hy440-n108bdd) | 450 W | +50 W, cooler, +2.6 pp | | [BYD NLBK-27-450](https://comparepv.com/panel/byd-nlbk-27-450) | 450 W | +50 W, cooler, +2.6 pp | | [Renesola RS41-450NBG-E3](https://comparepv.com/panel/renesola-rs41-450nbg-e3) | 450 W | +50 W, cooler, +2.6 pp | | [Gamko New Energy GKA182M108-395W](https://comparepv.com/panel/gamko-new-energy-gka182m108-395w) | 395 W | -0.2 pp | | [Gamko New Energy GKA182M108-405W](https://comparepv.com/panel/gamko-new-energy-gka182m108-405w) | 405 W | +0.3 pp | | [Gamko New Energy GKA182M108-410W](https://comparepv.com/panel/gamko-new-energy-gka182m108-410w) | 410 W | +10 W, +0.5 pp | | [Gamko New Energy GKA182M108-415W](https://comparepv.com/panel/gamko-new-energy-gka182m108-415w) | 415 W | +15 W, +0.8 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +110 W, cooler, +4.5 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +95 W, cooler, +4.3 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +105 W, cooler, +4.2 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | +105 W, cooler, +4.2 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +90 W, cooler, +4.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +100 W, cooler, +4.0 pp | --- Source: https://comparepv.com/panel/gamko-new-energy-gka182m108-400w Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.