--- title: "WINAICO WST-450NFX54-B1 Full Black Solar Panel: Specs & Datasheet | ComparePV" description: "WINAICO WST-450NFX54-B1 Full Black solar panel. Specs: 22.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/winaico-wst-450nfx54-b1-full-black" image: "https://comparepv.com/og/panel/winaico-wst-450nfx54-b1-full-black.png" updated: 2026-10-23 --- # WINAICO WST-450NFX54-B1 Full Black Middle of its segment, heavy for its output 302 panels in the segment N-type 450-500 W ## Identity - **Manufacturer:** WINAICO - **Model:** WST-450NFX54-B1 Full Black - **Series:** WST-NFX54-B1 Series - **Rated power:** 450 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 450-500 W (302 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 450 W | 470 W | Weak - bottom 8% | | | Module efficiency | 22.50% | 22.52% | Typical | 4,281 | | Power density | 225.2 | 225.3 | Typical | 4,284 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight (kg) | 25.0 kg | 23.7 kg | Weak - bottom 13% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.50% | 22.52% | Typical | 4,281 | | Power density | 225.2 | 225.3 | Typical | 4,284 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight per kWp | 55.6 | 49.7 | Weak - bottom 13% | 9,992 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **55.6 kg per kWp** - Bottom 13% of the N-type 450-500 W segment, against a median of 49.7. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 450 W - **Efficiency:** 22.50 % - **Voltage at Pmax (Vmp):** 33.39 V - **Current at Pmax (Imp):** 13.48 A - **Open-circuit voltage (Voc):** 39.40 V - **Short-circuit current (Isc):** 14.28 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:** 0.043 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 20.00 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 25.0 kg - **Area:** 2.00 m2 - **Power density:** 225.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 30 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:** 393 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4281 of 14129 | | Power density | 4284 of 14129 | | Temperature coefficient | 2220 of 14129 | | Weight | 9992 of 14129 | | Warranty | 21 of 14129 | ## About this series The WST-NFX54-B1 Full Black series is built around **N-type TOPCon** cell technology in a **glass-glass** construction, designed for residential installations where both aesthetics and long-term reliability matter. Its **bifacial** cell design captures light reflected from the roof or ground surface, boosting energy yield without requiring additional roof space. The **zero busbar** layout reduces cell shading, directly translating into higher module output, while a dense, stacked soldering technique improves conversion efficiency without increasing panel dimensions. The glass surface is coated with a dual-layer film that gives the modules a deep, uniform black finish, making the **Full Black** variant well suited for installations where appearance matters as much as technical performance. Resistance to PID and LID degradation ensures stable output throughout the system's lifetime, lowering the risk of unplanned energy losses. This series is aimed at installers and homeowners looking for panels that combine modern cell technology, strong mechanical durability, and an attractive appearance, without having to trade efficiency for roof aesthetics. ## Notable figures - At 22.5% efficiency, this panel is on par with typical \*\*N-type 450-500W\*\* modules - At 225.2 W/m² power density, roof space requirements are typical for \*\*N-type 450-500W\*\* panels - At -0.29%/°C, hot weather performance is typical for \*\*N-type 450-500W\*\* panels - At 25.0 kg (1.3 kg above \*\*N-type 450-500W\*\* median of 23.7 kg), requires checking roof load capacity - #4281 for efficiency, #2220 for temperature performance out of 14129 panels ## Questions ### What is the maximum power output of WINAICO WST-NFX54-B1 solar panels? Panels in the WST-NFX54-B1 series reach a maximum power output of up to 450 Wp. This result is achieved thanks to N-type TOPCon cells and zero busbar technology, which reduces cell shading and delivers higher power output without increasing module dimensions. ### How do bifacial cells in the WST-NFX54-B1 differ from a standard monofacial panel? Bifacial cells in the WST-NFX54-B1 series capture irradiance not only from the front but also from the rear of the module, utilizing light reflected from the roof, snow, or a bright surface. In practice, this results in additional energy yield, especially when mounted on light-colored surfaces, without using extra roof space. ### What warranty comes with WINAICO WST-NFX54-B1 Full Black panels? WINAICO provides a 30-year product warranty and a 30-year linear power output warranty. This means the panels are covered both against factory defects and gradual efficiency loss, giving investors long-term security for their investment. ### Do Full Black WST-NFX54-B1 panels lose efficiency compared to standard silver-framed versions? No, the dual coating on the glass responsible for the uniform black appearance does not negatively affect electrical parameters. The panel retains up to 450 Wp of power and the same resistance to PID and LID degradation, with the only difference being aesthetics, which matters for residential installations visible from the street. ### What does PID and LID resistance mean in WINAICO panels, and is it important for buyers? PID and LID are degradation mechanisms that can cause power loss over time, caused respectively by system voltage and light exposure during the first hours of operation. WST-NFX54-B1 panels are engineered to minimize these effects, resulting in stable energy production throughout the system's lifetime and lower risk of reduced return on investment. ### Is WINAICO, a Taiwan-based manufacturer, a reliable brand in the solar panel market? WINAICO is a Tier 1 manufacturer from Taiwan, operating for over a decade in demanding markets such as Europe and Japan. Tier 1 status indicates financial stability and proven bankability of projects, which matters when financing installations through banks or leasing, as well as for long-term warranty fulfillment. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/WINAICO_WST-450NFX54-B1_EU_1124-1-3a71eb281322.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +45 W, lighter, +2.3 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +40 W, lighter, +2.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +50 W, cooler, +2.0 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +50 W, lighter, +2.0 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +50 W, lighter, +2.0 pp | | [GCL GCL-NR10R/54BGDF](https://comparepv.com/panel/gcl-gcl-nr10r-54bgdf) | 500 W | +50 W, cooler, +2.0 pp | | [WINAICO WST-465NCX48-BW](https://comparepv.com/panel/winaico-wst-465ncx48-bw) | 465 W | +15 W, +0.8 pp | | [WINAICO WST-470NCX48-AW](https://comparepv.com/panel/winaico-wst-470ncx48-aw) | 470 W | +20 W, +1.0 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +60 W, cooler, +2.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +55 W, cooler, +2.2 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/winaico-wst-450nfx54-b1-full-black 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.