--- title: "Luxen Solar Energy LNCU-625N vs Luxen Solar Energy LNCU-635N - Solar Panel Comparison | ComparePV" description: "Compare Luxen Solar Energy LNCU-625N vs Luxen Solar Energy LNCU-635N side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/luxen-solar-energy-lncu-625n/luxen-solar-energy-lncu-635n" image: "https://comparepv.com/og/compare/panels/luxen-solar-energy-lncu-625n/luxen-solar-energy-lncu-635n.png" updated: 2026-09-11 --- # Luxen Solar Energy LNCU-625N vs Luxen Solar Energy LNCU-635N 635N leads on the differences that matter The largest is module efficiency: 0.36 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Luxen Solar Energy LNCU-625N](https://comparepv.com/panel/luxen-solar-energy-lncu-625n) | [Luxen Solar Energy LNCU-635N](https://comparepv.com/panel/luxen-solar-energy-lncu-635n) | | Manufacturer | Luxen Solar Energy | Luxen Solar Energy | | Power | 625 Wp | 635 Wp | | Efficiency | 22.36 % | 22.72 % | | Technology | N-type | N-type | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 625N | 635N | Difference | | --- | --- | --- | --- | | Module efficiency | 22.36 % | 22.72 % | +0.36 pp for 635N | | Power density | 223.6 Wp/m² | 227.2 Wp/m² | +3.6 Wp/m² for 635N | | Rated power | 625 Wp | 635 Wp | +10 W for 635N | ## Every compared parameter | Parameter | 625N | 635N | | --- | --- | --- | | Rated power | 625 Wp | 635 Wp | | Module efficiency | 22.36 % | 22.72 % | | Power density | 223.6 Wp/m² | 227.2 Wp/m² | | Open-circuit voltage | 52.17 V | 52.54 V | | Voltage at max power | 43.55 V | 43.88 V | | Short-circuit current | 15.22 A | 15.34 A | | Current at max power | 14.35 A | 14.47 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 2465x1134x33 mm | 2465x1134x33 mm | | Module area | 2.795 m² | 2.795 m² | | Weight | 29.8 kg | 29.8 kg | | Weight per kWp | 47.7 kg/kWp | 46.9 kg/kWp | | Product warranty | 20 yrs | 20 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | N-type | N-type | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 144 | | 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, 625N:** 20,970 kWh - **Cumulative output, 635N:** 21,306 kWh - **Gap:** 336 kWh ## Output when hot | Condition | Cell temperature | 625N | 635N | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 625 W | 635 W | 100.0% of rated power | | Cool, bright day | 40 °C | 598 W | 607 W | 95.7% of rated power | | Typical summer roof | 55 °C | 571 W | 580 W | 91.3% of rated power | | Hot roof | 70 °C | 543 W | 552 W | 87.0% of rated power | ## Against the whole database | Measure | 625N | 635N | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #5,069 | #3,302 | 14,129 | 635N leads by 1,767 places | | Power density | #5,017 | #3,309 | 14,129 | 635N leads by 1,708 places | | Heat behaviour | #2,220 | #2,220 | 14,129 | Tied - the same position in the database | | Weight | #1,810 | #1,405 | 14,129 | 635N leads by 405 places | | Warranty | #21 | #21 | 14,129 | Tied - the same position in the database | | Overall | #1,754 | #1,350 | 14,129 | 635N leads by 404 places | ## Questions ### Which panel is better: Luxen Solar Energy LNCU-625N or Luxen Solar Energy LNCU-635N? According to our database: **Luxen Solar Energy LNCU-635N** has higher module efficiency (**22.72%** vs **22.36%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Luxen Solar Energy LNCU-625N and Luxen Solar Energy LNCU-635N? **Luxen Solar Energy LNCU-625N** has a module efficiency of **22.36%**, while **Luxen Solar Energy LNCU-635N** is **22.72%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Luxen Solar Energy LNCU-625N use vs Luxen Solar Energy LNCU-635N? **Luxen Solar Energy LNCU-625N** uses **N-type** cells; **Luxen Solar Energy LNCU-635N** 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 Luxen Solar Energy LNCU-625N and Luxen Solar Energy LNCU-635N? **Luxen Solar Energy LNCU-625N** has a **30 years** power warranty; **Luxen Solar Energy LNCU-635N** 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 - [Luxen Solar Energy LNCU-625N vs Luxen Solar Energy LNCU-640N](https://comparepv.com/compare/luxen-solar-energy-lncu-625n/luxen-solar-energy-lncu-640n) - 3 differences, the largest is module efficiency - [Luxen Solar Energy LNCU-625N vs Luxen Solar Energy LNCU-630N](https://comparepv.com/compare/luxen-solar-energy-lncu-625n/luxen-solar-energy-lncu-630n) - The same specification on paper - [Luxen Solar Energy LNCU-625N vs Luxen Solar Energy LNCU-620N](https://comparepv.com/compare/luxen-solar-energy-lncu-625n/luxen-solar-energy-lncu-620n) - The same specification on paper - [Luxen Solar Energy LNCU-625N vs Luxen Solar Energy LNVU-590N](https://comparepv.com/compare/luxen-solar-energy-lncu-625n/luxen-solar-energy-lnvu-590n) - 8 differences, the largest is rated power - [Luxen Solar Energy LNCU-625N vs Luxen Solar Energy LNVU-585N](https://comparepv.com/compare/luxen-solar-energy-lncu-625n/luxen-solar-energy-lnvu-585n) - 7 differences, the largest is rated power - [Luxen Solar Energy LNCU-625N vs Luxen Solar Energy LNVU-580N](https://comparepv.com/compare/luxen-solar-energy-lncu-625n/luxen-solar-energy-lnvu-580n) - 6 differences, the largest is rated power --- Source: https://comparepv.com/compare/luxen-solar-energy-lncu-625n/luxen-solar-energy-lncu-635n 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.