--- title: "Silfab SIL-430 QD vs Silfab SIL-430-QD - Solar Panel Comparison | ComparePV" description: "Compare Silfab SIL-430 QD vs Silfab SIL-430-QD side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/silfab-sil-430-qd/silfab-sil-430-qd-1" updated: 2026-09-11 --- # Silfab SIL-430 QD vs Silfab SIL-430-QD Identical on every published parameter All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Silfab SIL-430 QD](https://comparepv.com/panel/silfab-sil-430-qd) | [Silfab SIL-430-QD](https://comparepv.com/panel/silfab-sil-430-qd-1) | | Manufacturer | Silfab | Silfab | | Power | 430 Wp | 430 Wp | | Efficiency | 22.10 % | 22.10 % | | Technology | N-type | N-type | ## Every compared parameter | Parameter | 430 QD | 430-QD | | --- | --- | --- | | Rated power | 430 Wp | 430 Wp | | Module efficiency | 22.10 % | 22.10 % | | Power density | 220.5 Wp/m² | 220.5 Wp/m² | | Open-circuit voltage | 38.91 V | 38.91 V | | Voltage at max power | 33.25 V | 33.25 V | | Short-circuit current | 13.87 A | 13.87 A | | Current at max power | 12.93 A | 12.93 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 1721x1133x35 mm | 1721x1133x35 mm | | Module area | 1.950 m² | 1.950 m² | | Weight | 21.0 kg | 21.0 kg | | Weight per kWp | 48.8 kg/kWp | 48.8 kg/kWp | | Product warranty | 25 yrs | 25 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.30 %/yr | 0.30 %/yr | | Cell technology | N-type | N-type | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 108 | | Bifacial | No | No | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.290 %/°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, 430 QD:** 14,497 kWh - **Cumulative output, 430-QD:** 14,497 kWh - **Gap:** No difference ## Output when hot | Condition | Cell temperature | 430 QD | 430-QD | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 430 W | 430 W | 100.0% of rated power | | Cool, bright day | 40 °C | 411 W | 411 W | 95.7% of rated power | | Typical summer roof | 55 °C | 393 W | 393 W | 91.3% of rated power | | Hot roof | 70 °C | 374 W | 374 W | 87.0% of rated power | ## Against the whole database | Measure | 430 QD | 430-QD | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #6,012 | #6,012 | 14,005 | Tied - the same position in the database | | Power density | #6,191 | #6,191 | 14,005 | Tied - the same position in the database | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #2,492 | #2,492 | 14,005 | Tied - the same position in the database | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #7,342 | #7,342 | 14,005 | Tied - the same position in the database | ## Questions ### Which panel is better: Silfab SIL-430 QD or Silfab SIL-430-QD? According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Silfab SIL-430 QD and Silfab SIL-430-QD? **Silfab SIL-430 QD** has a module efficiency of **22.10%**, while **Silfab SIL-430-QD** is **22.10%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Silfab SIL-430 QD use vs Silfab SIL-430-QD? **Silfab SIL-430 QD** uses **N-type** cells; **Silfab SIL-430-QD** uses **N-type**. 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 Silfab SIL-430 QD and Silfab SIL-430-QD? **Silfab SIL-430 QD** has a **30 years** power warranty; **Silfab SIL-430-QD** 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. ## Related comparisons - [Silfab SIL-430 QD vs Silfab SIL-440 QD](https://comparepv.com/compare/silfab-sil-430-qd/silfab-solar-inc-sil-440-qd) - 3 differences, the largest is module efficiency - [Silfab SIL-430 QD vs Silfab SIL-420 QD](https://comparepv.com/compare/silfab-sil-430-qd/silfab-sil-420-qd) - 4 differences, the largest is module efficiency - [Silfab SIL-430 QD vs Silfab SIL-370 NT mono PERC](https://comparepv.com/compare/silfab-sil-430-qd/silfab-sil-370-nt-mono-perc) - 14 differences, the largest is module efficiency - [Silfab SIL-430 QD vs Silfab SIL-640 XL](https://comparepv.com/compare/silfab-sil-430-qd/silfab-sil-640-xl) - 11 differences, the largest is module efficiency - [Silfab SIL-430 QD vs Silfab SIL-630 XL](https://comparepv.com/compare/silfab-sil-430-qd/silfab-sil-630-xl) - 11 differences, the largest is rated power - [Silfab SIL-430 QD vs Silfab SIL-620 XL](https://comparepv.com/compare/silfab-sil-430-qd/silfab-sil-620-xl) - 8 differences, the largest is rated power --- Source: https://comparepv.com/compare/silfab-sil-430-qd/silfab-sil-430-qd-1 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.