--- title: "Phono Solar PS620L8GFH-22/WNH Solar Panel: Specs & Datasheet | ComparePV" description: "Phono Solar PS620L8GFH-22/WNH solar panel. Specs: 22.95% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/phono-solar-ps620l8gfh-22-wnh" image: "https://comparepv.com/og/panel/phono-solar-ps620l8gfh-22-wnh.png" updated: 2026-09-11 --- # Phono Solar PS620L8GFH-22/WNH Solid all-round for its segment 1,085 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** Phono Solar - **Model:** PS620L8GFH-22/WNH - **Series:** Draco Module Series - **Rated power:** 620 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 600-650 W (1085 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 620 W | 620 W | Typical | | | Module efficiency | 22.95% | 22.80% | Typical | 2,320 | | Power density | 229.5 | 227.7 | Typical | 2,243 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight (kg) | 32.6 kg | 32.8 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.95% | 22.80% | Typical | 2,320 | | Power density | 229.5 | 227.7 | Typical | 2,243 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight per kWp | 52.6 | 53.1 | Typical | 6,256 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential, commercial, utility-scale and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 620 W - **Efficiency:** 22.95 % - **Voltage at Pmax (Vmp):** 41.62 V - **Current at Pmax (Imp):** 14.90 A - **Open-circuit voltage (Voc):** 49.50 V - **Short-circuit current (Isc):** 15.56 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 - **Bifacial:** yes - **Bifacial gain:** 30.00 ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 32.6 kg - **Area:** 2.70 m2 - **Power density:** 229.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 542 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2320 of 14129 | | Power density | 2243 of 14129 | | Temperature coefficient | 2220 of 14129 | | Weight | 6256 of 14129 | | Warranty | 21 of 14129 | ## Pros - **N-type TOPCon with bifacial gain** - N-type TOPCon cells combined with >80% bifaciality deliver up to 30% additional energy yield from reflected light, which is especially noticeable on light-colored ground cover or flat-roof installations. - **30-year power warranty at 87.4%** - The manufacturer guarantees 87.4% of nominal power after 30 years of operation, with linear annual degradation of 0.4% and less than 1% first-year degradation - a clear improvement over the older 25-year/84.8% standard offered by many competitors. - **Efficiency on par with segment leaders** - The maximum efficiency of 23.32% at 630 Wp matches the best peer comparables - Jinko Solar Tiger Neo 66HL4M-BDV and Resun Solar RS8H-M-BD - and clearly exceeds Leapton's LP182\*199-M-72-NH (22.54%). - **Tier-1 BNEF status since 2014** - Phono Solar (founded in 2004) has been continuously listed on Bloomberg NEF's Tier-1 list since 2014, confirming manufacturer financial stability and easing bank financing for projects. - **Low degradation and PID resistance** - POE encapsulation and dual-glass construction provide strong resistance to potential-induced degradation (PID), while the low -0.29%/°C temperature coefficient supports more stable output in high-temperature conditions. ## Cons - **Fire rating Class C (minimum)** - The modules are only certified to IEC 61730 Fire Class C, the lowest of the three available fire-resistance categories. In some countries and building types (e.g., pitched roofs near property boundaries), this may require additional fire protection measures. - **Efficiency trails next-gen TOPCon** - Launched in 2022, the Draco series tops out at 23.32% efficiency and 630 Wp, while Jinko Solar's successor line, Tiger Neo 3.0, already delivers up to 24.8% efficiency and 670 Wp in 2026 - showing that Draco's technology has been partly overtaken by the newer TOPCon generation. ## About this series The Phono Solar Draco series introduces a new quality to prosumer installations, basing its design on advanced **N-type TOPCon cell technology**. Thanks to this approach, these panels offer significantly higher efficiency and better performance characteristics in full sun and at high temperatures. A key differentiator of the series is **bifacial light absorption**, which allows for generating additional energy from rays reflected off the ground, making them an ideal choice for ground-mounted installations and flat roofs. These modules effectively solve the problem of power loss over time, offering **low potential-induced degradation**, which directly translates into a longer lifespan and a faster return on investment. This solution is primarily dedicated to homeowners and companies that want to maximize yields from a limited mounting area. What sets Draco ahead of the competition is its **excellent performance in low sunlight conditions** and high mechanical resistance to snow and wind loads. By investing in this series, the user gains the certainty of stable energy production throughout the year, regardless of the whims of the weather, while maintaining an aesthetic appearance and the highest fire safety standards. Every element of the construction has been optimized to minimize resistive losses, making the Draco series one of the most substantial choices on the Polish photovoltaic market today. ## Notable figures - At 22.9% efficiency, this panel is on par with typical \*\*TOPCon 600-650W\*\* modules - At 229.5 W/m² power density, roof space requirements are typical for \*\*TOPCon 600-650W\*\* panels - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 600-650W\*\* median - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof - Ranked #2320 out of 14129 panels for efficiency in the database ## Questions ### What warranty does the Phono Solar Draco series come with and what does it cover? The Phono Solar Draco series includes a 15-year product warranty covering manufacturing defects and a 30-year linear power output warranty. After 30 years, the manufacturer guarantees at least 87.4% of the nominal rated power. Annual degradation is only 0.40%, with first-year degradation capped at 1.00%. This places the Draco among the better-warranted modules available in its price segment on the European market. ### What is N-type TOPCon technology and why does the Draco series use it instead of PERC? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that uses a thin tunnel oxide layer to suppress carrier recombination at the cell surface. In practice, this delivers higher module efficiency - up to 23.32% for the 630W Draco - and near-zero LID (Light Induced Degradation). Compared to standard PERC cells, TOPCon generates more energy at high operating temperatures and under low-irradiance conditions, resulting in a higher annual energy yield in Central European climates. ### Are the bifacial Phono Solar Draco panels suitable for standard pitched roof installations? Draco panels are bifacial, meaning the rear glass surface captures reflected irradiance to produce additional power. On a pitched roof the bifacial gain is limited - the full potential (up to 30% rear-side boost) is realized mainly in ground-mount systems or on flat roofs with high-albedo membranes. On a conventional pitched roof, Draco modules perform excellently as premium monofacial panels, with a modest but real bifacial bonus depending on the albedo of the surrounding surface. ### How do the Phono Solar Draco 630W panels perform during winter and overcast conditions? N-type TOPCon cells have a superior low-irradiance response compared to PERC technology. The temperature coefficient of Pmax is only -0.29%/°C, which limits power losses on hot summer days. In winter, at low sun angles and under diffuse light, TOPCon cells generate proportionally more energy than older cell generations - a significant advantage in Poland, where overcast days represent a substantial share of annual irradiation hours. ### How heavy is the Phono Solar Draco 630W panel and will a standard roof structure support it? The 630W model (132 cells, dimensions 2382×1134×30 mm) weighs 32.6 kg, which is standard for dual-glass modules in this power class. A structural assessment is recommended before installation, particularly on older buildings. On modern or reinforced rooftops and ground-mount racking, the module is installed under routine load calculations. The larger format is worth factoring into logistics planning for steep-pitch roofs where handling is more demanding. ### Are Phono Solar Draco panels rated for snow loads and wind pressure under European conditions? Yes. Draco modules hold mechanical load certifications applicable to the European market. The dual-glass construction increases frame rigidity and protects against micro-cracks in the cells and moisture ingress. The manufacturer confirms compliance with European snow and wind load standards - an important factor in Poland, especially in foothill and upland regions with heavy snowfall. The Draco series also meets relevant fire safety classification requirements. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/GL-EN-210R-DRACO-N-132-16BB610-630W-9ea7e7757053.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +30 W, lighter, +2.2 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +2.1 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +50 W, lighter, +1.9 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +50 W, lighter, +1.9 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +1.9 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +50 W, cooler, +1.9 pp | | [Phono Solar PS610L8GFH-22/WNH](https://comparepv.com/panel/phono-solar-ps610l8gfh-22-wnh) | 610 W | -10 W, -0.4 pp | | [Phono Solar PS615L8GFH-22/WNH](https://comparepv.com/panel/phono-solar-ps615l8gfh-22-wnh) | 615 W | Very close match | | [Phono Solar PS625L8GF-22/WNH](https://comparepv.com/panel/phono-solar-ps625l8gf-22-wnh) | 625 W | Very close match | | [Phono Solar PS630L8GF-22/WNH](https://comparepv.com/panel/phono-solar-ps630l8gf-22-wnh) | 630 W | +10 W, +0.4 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +60 W, lighter, +2.2 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +55 W, lighter, +2.1 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +80 W, cooler, +2.1 pp | | [WINAICO WST-675BKX72-A2](https://comparepv.com/panel/winaico-wst-675bkx72-a2) | 675 W | +55 W, cooler, +2.1 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +75 W, cooler, +1.9 pp | --- Source: https://comparepv.com/panel/phono-solar-ps620l8gfh-22-wnh 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.