--- title: "WINAICO WST-435NGX-D3 Solar Panel: Specs & Datasheet | ComparePV" description: "WINAICO WST-435NGX-D3 solar panel. Specs: 22.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/winaico-wst-435ngx-d3" image: "https://comparepv.com/og/panel/winaico-wst-435ngx-d3.png" updated: 2026-10-23 --- # WINAICO WST-435NGX-D3 Space saver, heavy for its output 322 panels in the segment N-type 400-450 W ## Identity - **Manufacturer:** WINAICO - **Model:** WST-435NGX-D3 - **Series:** WST-NGX-D3 Series - **Rated power:** 435 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 400-450 W (322 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 435 W | 430 W | Typical | | | Module efficiency | 22.30% | 21.95% | Strong - top 18% | 5,161 | | Power density | 222.8 | 218.4 | Strong - top 17% | 5,212 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 25% | 6,152 | | Weight (kg) | 24.0 kg | 22.0 kg | Weak - bottom 25% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.30% | 21.95% | Strong - top 18% | 5,161 | | Power density | 222.8 | 218.4 | Strong - top 17% | 5,212 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 25% | 6,152 | | Weight per kWp | 55.2 | 51.2 | Weak - bottom 25% | 9,671 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **222.8 watts per square metre** - Top 17% of the N-type 400-450 W segment, against a median of 218.4. - **22.30% module efficiency** - Top 18% of the N-type 400-450 W segment, against a median of 21.95%. ### Watch out for - **55.2 kg per kWp** - Bottom 25% of the N-type 400-450 W segment, against a median of 51.2. - **-0.300 %/°C temperature coefficient** - Bottom 25% of the N-type 400-450 W segment, against a median of -0.290. - **Best for:** Commercial and agrivoltaic. - **Not ideal for:** Weight-limited structures and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 435 W - **Efficiency:** 22.30 % - **Voltage at Pmax (Vmp):** 33.01 V - **Current at Pmax (Imp):** 13.18 A - **Open-circuit voltage (Voc):** 38.72 V - **Short-circuit current (Isc):** 13.89 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/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:** 1722 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 24.0 kg - **Area:** 1.95 m2 - **Power density:** 222.8 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:** 380 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5161 of 14129 | | Power density | 5212 of 14129 | | Temperature coefficient | 6152 of 14129 | | Weight | 9671 of 14129 | | Warranty | 21 of 14129 | ## About this series The WINAICO WST-NGX-D3 series is engineered to capture the maximum amount of sunlight even under diffuse or low-irradiance conditions. At the core of the design is **N-type TOPCon technology** paired with a **bifacial glass-glass construction**, allowing the module to harvest additional energy from light reflected onto its rear surface, meaningfully boosting system yield in challenging installation settings. A dual tempered-glass build replaces the traditional backsheet, delivering significantly improved **resistance to PID and LID degradation** along with better protection against moisture ingress and micro-damage, resulting in stable performance over decades. The series also stands out for its resilience against harsh environmental conditions, including hail impact and ammonia corrosion, making it a strong fit for agricultural and coastal installations. Robust Stäubli connectors and careful encapsulation further reduce long-term failure risk. This makes the WST-NGX-D3 a solid choice for investors and installers seeking modules with enhanced durability and predictable output, backed by a **30-year linear performance warranty** with minimal annual degradation, setting it apart from standard monofacial panels commonly found on the market. ## Notable figures - Efficiency of 22.3% matches the \*\*N-type 400-450W\*\* median - 222.8 W/m² power density - 4.4 W/m² more than \*\*N-type 400-450W\*\* median (218.4 W/m²), more power per roof area - At -0.30%/°C, hot weather performance is typical for \*\*N-type 400-450W\*\* panels - Weight of 24.0 kg is 2.0 kg above \*\*N-type 400-450W\*\* median (22.0 kg) - verify structural support - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces ## Questions ### Is the WINAICO WST-NGX-D3 series still available for purchase? The WST-NGX-D3 series has been discontinued from current production and replaced by newer WINAICO models. Panels may still be available as remaining stock through distributors, but it's worth confirming the manufacturing date and warranty validity before buying. If expanding an existing array, contact your supplier to confirm compatibility with already-installed modules from this series. ### How does the bifacial glass-glass construction of the WST-NGX-D3 differ from a standard monofacial panel? A standard panel has an opaque backsheet on the rear side. The WST-NGX-D3 uses two tempered glass layers instead, allowing the TOPCon cells to also capture light reflected onto the rear surface. In practice this adds several extra percentage points of energy yield, especially on light-colored ground, east-west orientations, or elevated mounting structures. ### What warranty comes with WINAICO WST-NGX-D3 panels? The WST-NGX-D3 series is backed by a 30-year product warranty and a 30-year linear power warranty with minimal annual degradation. This is significantly longer than the typical 10-12 year product warranty and 25-year power warranty offered on standard monofacial PERC panels, making this series attractive for long-term investment projects. ### Are WST-NGX-D3 modules suitable for farm rooftops or coastal installations? Yes, the series is rated for hail resistance and ammonia corrosion resistance, both confirmed by environmental certifications. This makes it well-suited for agricultural installations where ammonia fumes from livestock are present, as well as coastal zones exposed to humidity and salt. The sealed glass-glass construction also reduces the risk of internal cell corrosion over time. ### What is the maximum power output of panels in the WST-NGX-D3 series? Top variants in the WST-NGX-D3 series reach up to 540 Wp, thanks to high-efficiency N-type TOPCon cells. Combined with bifacial technology, the actual energy yield from a single module can exceed the nominal STC rating measured on the front side alone, depending on ground albedo and mounting height. ### Does N-type TOPCon technology in the WST-NGX-D3 mean lower degradation over time compared to P-type panels? Yes, N-type TOPCon cells show lower susceptibility to LID and PID degradation compared to older P-type PERC cells. WINAICO further reinforces this with the glass-glass construction, which better protects the cells from moisture ingress. The result is more stable energy production throughout the full 30-year linear power warranty period. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/WINAICO_WST-450NGX-D3_EU_1124-1-a35adad8e0fb.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +50 W, lighter, +2.0 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +50 W, cooler, +2.0 pp | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | +50 W, cooler, +2.0 pp | | [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | +50 W, cooler, +2.0 pp | | [WINAICO WST-400MGX-P3 Full Black](https://comparepv.com/panel/winaico-wst-400mgx-p3-full-black) | 400 W | Hotter, -1.9 pp, -5 yr warranty | | [WINAICO WST-405MGX-E5](https://comparepv.com/panel/winaico-wst-405mgx-e5) | 405 W | -30 W, -1.5 pp, -5 yr warranty | | [WINAICO WST-410MGX-P3](https://comparepv.com/panel/winaico-wst-410mgx-p3) | 410 W | Hotter, -1.4 pp, -5 yr warranty | | [WINAICO WST-410MGX-E3](https://comparepv.com/panel/winaico-wst-410mgx-e3) | 410 W | Hotter, -1.3 pp, -5 yr warranty | | [WINAICO WST-415MGX-E3](https://comparepv.com/panel/winaico-wst-415mgx-e3) | 415 W | Hotter, -1.0 pp, -5 yr warranty | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +75 W, cooler, +2.7 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +60 W, cooler, +2.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +70 W, cooler, +2.4 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | +70 W, cooler, +2.4 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +55 W, cooler, +2.2 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +65 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/winaico-wst-435ngx-d3 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.