--- title: "Yingli YL425CF54 e/2 Solar Panel: Specs & Datasheet | ComparePV" description: "Yingli YL425CF54 e/2 solar panel. Specs: 21.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/yingli-yl425cf54-e-2" image: "https://comparepv.com/og/panel/yingli-yl425cf54-e-2.png" updated: 2026-09-11 --- # Yingli YL425CF54 e/2 Light for its output, no clear weak spot 1,220 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Yingli - **Model:** YL425CF54 e/2 - **Series:** PANDA 3.0 Mini 1 - **Rated power:** 425 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 400-450 W (1220 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 425 W | 435 W | Typical | | | Module efficiency | 21.80% | 22.00% | Typical | 7,085 | | Power density | 217.6 | 220.2 | Typical | 7,235 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight (kg) | 20.3 kg | 22.0 kg | Strong - top 19% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.80% | 22.00% | Typical | 7,085 | | Power density | 217.6 | 220.2 | Typical | 7,235 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight per kWp | 47.8 | 51.5 | Strong - top 19% | 1,887 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **47.8 kg per kWp** - Top 19% of the TOPCon 400-450 W segment, against a median of 51.5. - **Best for:** Residential, commercial, shaded-installations and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 425 W - **Efficiency:** 21.80 % - **Voltage at Pmax (Vmp):** 31.70 V - **Current at Pmax (Imp):** 13.41 A - **Open-circuit voltage (Voc):** 38.32 V - **Short-circuit current (Isc):** 14.09 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.042 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 20.3 kg - **Area:** 1.95 m2 - **Power density:** 217.6 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 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:** 371 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7085 of 14129 | | Power density | 7235 of 14129 | | Temperature coefficient | 2220 of 14129 | | Weight | 1887 of 14129 | | Warranty | 21 of 14129 | ## About this series The Yingli PANDA 3.0 Mini 1 series is designed for maximum energy yield in real-world operating conditions-especially when the installation does not have ideal exposure or frequently operates under diffuse light. The key advantage is the application of **n-type TOPCon cells**, which support stable production and help limit efficiency losses over the long term. These are also **bifacial modules**, capable of utilizing reflected light from the ground, effectively translating into a better energy balance without adding more panels. The "Mini" format facilitates the design of installations on rooftops with obstacles, near window frames, or in systems with multiple connections-where flexible adaptation is key. Additionally, the series features **advanced surface passivation** and optimized layer optics, enhancing the high efficiency of the cells. This is the choice for clients who demand **high reliability** in residential and commercial installations, as well as tangible benefits from every square meter of roof space. ## Notable figures - At 21.8% efficiency, this panel is on par with typical \*\*TOPCon 400-450W\*\* modules - At 217.6 W/m² power density, roof space requirements are typical for \*\*TOPCon 400-450W\*\* panels - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 400-450W\*\* median - 20.3 kg weight - 1.7 kg lighter than \*\*TOPCon 400-450W\*\* median (22.0 kg), reducing installation effort - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces ## Questions ### How does the Yingli PANDA 3.0 Mini 1 differ from standard monofacial panels? The PANDA 3.0 Mini 1 is a bifacial module, meaning it generates power from both the front and rear side of the cell. This allows it to capture light reflected off the roof, terrace, or a light-colored surface, increasing real-world energy yield without adding extra panels. Combined with n-type TOPCon cells, this results in higher and more stable energy production throughout the day. ### What warranty comes with the Yingli PANDA 3.0 Mini 1 panels? The manufacturer provides a 12-year product warranty and a 30-year power output warranty. This means the module maintains the performance level specified in the datasheet for three decades, while any material or manufacturing defects are covered during the first 12 years of use. ### Is the Mini format of the PANDA 3.0 series suitable for roofs with dormers or irregular shapes? Yes, the Mini format was specifically designed for challenging roof surfaces such as dormers, chimneys, multi-pitch roofs, or limited installation space. The module's smaller footprint makes it easier to plan layouts where standard, larger panels simply won't fit, while a maximum output of up to 455 Wp still delivers strong energy yield from a compact surface area. ### What is TOPCon technology and what advantage does it bring to the PANDA 3.0 Mini 1 panels? TOPCon (Tunnel Oxide Passivated Contact) is an n-type cell technology that uses a thin oxide layer combined with doped silicon passivation to reduce electron losses at the cell surface. In practice this means higher efficiency, a lower power degradation rate over time, and better performance at high temperatures compared to older PERC-based technology. ### Do Yingli PANDA 3.0 Mini 1 panels perform well on roofs with less-than-ideal sun exposure? Yes, the series is designed for real-world operating conditions, including installations without an ideal south-facing exposure or those working under diffuse light. The bifacial construction further supports energy production even under partial shading or reflected light, improving overall energy yield compared to classic single-sided panels. ### Is Yingli a reliable, established manufacturer for the European market? Yingli is a Chinese manufacturer holding Tier 1 status, which confirms its financial stability, large production scale, and long-standing global market presence. This status matters when choosing a system, as it increases the likelihood that the manufacturer will remain available to honor warranty claims throughout the full 30-year power warranty period. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/1763542381137-1-d0b11e304aa0.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | +50 W, +2.2 pp, +10 yr warranty | | [Just Solar JST-EDMH-(445-465)W-TD (465W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-465w-class) | 465 W | +40 W, hotter, +2.0 pp | | [JA Solar JAT54S40-475/LR](https://comparepv.com/panel/ja-solar-jat54s40-475-lr) | 475 W | +50 W, cooler, +2.0 pp | | [Tongwei TWMNH-48HW475](https://comparepv.com/panel/tongwei-solar-twmnh-48hw475) | 475 W | +50 W, heavier, +2.0 pp | | [Astronergy CHSM48RN(DG)/F-BH-475](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm48rn-dg-f-bh-475) | 475 W | +50 W, heavier, +2.0 pp | | [AIKO AIKO-A475-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a475-mce54mw) | 475 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A475-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a475-mah54mw) | 475 W | +50 W, cooler, +2.0 pp | | [Yingli YL390D-37e 1/2 / YL390D-37e 1500V 1/2](https://comparepv.com/panel/yingli-yl390d-37e-1-2-yl390d-37e-1500v-1-2) | 390 W | Hotter, -1.8 pp, -5 yr warranty | | [Yingli YL395D-37e 1/2 / YL395D-37e 1500V 1/2](https://comparepv.com/panel/yingli-yl395d-37e-1-2-yl395d-37e-1500v-1-2) | 395 W | Hotter, -1.6 pp, -5 yr warranty | | [Yingli YL400D-37e 1/2 / YL400D-37e 1500V 1/2](https://comparepv.com/panel/yingli-yl400d-37e-1-2-yl400d-37e-1500v-1-2) | 400 W | Hotter, -1.3 pp, -5 yr warranty | | [Yingli YL405D-37e 1/2 / YL405D-37e 1500V 1/2](https://comparepv.com/panel/yingli-yl405d-37e-1-2-yl405d-37e-1500v-1-2) | 405 W | Hotter, -1.1 pp, -5 yr warranty | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +85 W, cooler, +3.2 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +70 W, cooler, +3.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +80 W, cooler, +2.9 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | +80 W, heavier, +2.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +65 W, cooler, +2.7 pp | --- Source: https://comparepv.com/panel/yingli-yl425cf54-e-2 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.