--- title: "ZNShine ZXM7-UHLDD108-420 vs ZNShine ZXM7-UHLDD108-430 - Solar Panel Comparison | ComparePV" description: "Compare ZNShine ZXM7-UHLDD108-420 vs ZNShine ZXM7-UHLDD108-430 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/znshine-zxm7-uhldd108-420/znshine-zxm7-uhldd108-430" updated: 2026-09-11 --- # ZNShine ZXM7-UHLDD108-420 vs ZNShine ZXM7-UHLDD108-430 430 leads on the differences that matter The largest is module efficiency: 0.51 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [ZNShine ZXM7-UHLDD108-420](https://comparepv.com/panel/znshine-zxm7-uhldd108-420) | [ZNShine ZXM7-UHLDD108-430](https://comparepv.com/panel/znshine-zxm7-uhldd108-430) | | Manufacturer | ZNShine | ZNShine | | Power | 420 Wp | 430 Wp | | Efficiency | 21.51 % | 22.02 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 420 | 430 | Difference | | --- | --- | --- | --- | | Module efficiency | 21.51 % | 22.02 % | +0.51 pp for 430 | | Power density | 215.1 Wp/m² | 220.2 Wp/m² | +5.1 Wp/m² for 430 | | Rated power | 420 Wp | 430 Wp | +10 W for 430 | ## Every compared parameter | Parameter | 420 | 430 | | --- | --- | --- | | Rated power | 420 Wp | 430 Wp | | Module efficiency | 21.51 % | 22.02 % | | Power density | 215.1 Wp/m² | 220.2 Wp/m² | | Open-circuit voltage | 38.00 V | 38.40 V | | Voltage at max power | 31.50 V | 31.90 V | | Short-circuit current | 14.11 A | 14.25 A | | Current at max power | 13.34 A | 13.48 A | | Temperature coefficient | -0.300 %/°C | -0.300 %/°C | | Dimensions | 1722x1134x30 mm | 1722x1134x30 mm | | Module area | 1.953 m² | 1.953 m² | | Weight | 24.5 kg | 24.5 kg | | Weight per kWp | 58.3 kg/kWp | 57.0 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 108 | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other. - **Cumulative output, 420:** 14,092 kWh - **Cumulative output, 430:** 14,427 kWh - **Gap:** 335 kWh ## Output when hot | Condition | Cell temperature | 420 | 430 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 420 W | 430 W | 100.0% of rated power | | Cool, bright day | 40 °C | 401 W | 411 W | 95.5% of rated power | | Typical summer roof | 55 °C | 382 W | 391 W | 91.0% of rated power | | Hot roof | 70 °C | 363 W | 372 W | 86.5% of rated power | ## Against the whole database | Measure | 420 | 430 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #7,894 | #6,329 | 14,005 | 430 leads by 1,565 places | | Power density | #7,882 | #6,481 | 14,005 | 430 leads by 1,401 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #11,670 | #10,964 | 14,005 | 430 leads by 706 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #10,637 | #10,082 | 14,005 | 430 leads by 555 places | ## Questions ### Which panel is better: ZNShine ZXM7-UHLDD108-420 or ZNShine ZXM7-UHLDD108-430? According to our database: **ZNShine ZXM7-UHLDD108-430** has higher module efficiency (**22.02%** vs **21.51%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of ZNShine ZXM7-UHLDD108-420 and ZNShine ZXM7-UHLDD108-430? **ZNShine ZXM7-UHLDD108-420** has a module efficiency of **21.51%**, while **ZNShine ZXM7-UHLDD108-430** is **22.02%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does ZNShine ZXM7-UHLDD108-420 use vs ZNShine ZXM7-UHLDD108-430? **ZNShine ZXM7-UHLDD108-420** uses **TOPCon** cells; **ZNShine ZXM7-UHLDD108-430** uses **TOPCon**. Modern **n-type** technologies (**TOPCon**, **HJT**, BC) typically deliver higher efficiency and lower degradation compared to older **PERC** (p-type) cells. ### What is the warranty on ZNShine ZXM7-UHLDD108-420 and ZNShine ZXM7-UHLDD108-430? **ZNShine ZXM7-UHLDD108-420** has a **30 years** power warranty; **ZNShine ZXM7-UHLDD108-430** has a **30 years** power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80**-87%**). Product (materials) warranties are usually shorter. ### Are ZNShine ZXM7-UHLDD108-420 and ZNShine ZXM7-UHLDD108-430 bifacial panels? Both **ZNShine ZXM7-UHLDD108-420** and **ZNShine ZXM7-UHLDD108-430** are bifacial - they capture reflected light from the ground, which can add 5**-15%** more annual energy on ground-mount or elevated rooftop installations with a light surface beneath. ## Related comparisons - [ZNShine ZXM7-UHLDD108-420 vs ZNShine ZXM7-UHLD108-440/N](https://comparepv.com/compare/znshine-zxm7-uhldd108-420/znshine-zxm7-uhld108-440-n) - 5 differences, the largest is module efficiency - [ZNShine ZXM7-UHLDD108-420 vs ZNShine ZXM7-UHLD108-435/N](https://comparepv.com/compare/znshine-zxm7-uhldd108-420/znshine-zxm7-uhld108-435-n) - 5 differences, the largest is module efficiency - [ZNShine ZXM7-UHLDD108-420 vs ZNShine ZXM7-UHLDD108-435](https://comparepv.com/compare/znshine-zxm7-uhldd108-420/znshine-zxm7-uhldd108-435) - 4 differences, the largest is module efficiency - [ZNShine ZXM7-UHLDD108-420 vs ZNShine ZXM7-UHLD108-430/N](https://comparepv.com/compare/znshine-zxm7-uhldd108-420/znshine-zxm7-uhld108-430-n) - 4 differences, the largest is module efficiency - [ZNShine ZXM7-UHLDD108-420 vs ZNShine ZXM7-UHLD108-425/N](https://comparepv.com/compare/znshine-zxm7-uhldd108-420/znshine-zxm7-uhld108-425-n) - 2 differences, the largest is product warranty - [ZNShine ZXM7-UHLDD108-420 vs ZNShine ZXM7-UHLDD108-425](https://comparepv.com/compare/znshine-zxm7-uhldd108-420/znshine-zxm7-uhldd108-425) - One difference: module efficiency --- Source: https://comparepv.com/compare/znshine-zxm7-uhldd108-420/znshine-zxm7-uhldd108-430 Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.