--- title: "Sunplus 725 vs Sunplus 735 - Solar Panel Comparison | ComparePV" description: "Compare Sunplus 725 vs Sunplus 735 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/sunplus-725/sunplus-735" updated: 2026-09-11 --- # Sunplus 725 vs Sunplus 735 735 leads on the differences that matter The largest is module efficiency: 0.40 pp more efficient. 15 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Sunplus 725](https://comparepv.com/panel/sunplus-725) | [Sunplus 735](https://comparepv.com/panel/sunplus-735) | | Manufacturer | Sunplus | Sunplus | | Power | 725 Wp | 735 Wp | | Efficiency | 23.30 % | 23.70 % | | Technology | HJT | HJT | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 725 | 735 | Difference | | --- | --- | --- | --- | | Module efficiency | 23.30 % | 23.70 % | +0.40 pp for 735 | | Power density | 233.4 Wp/m² | 236.6 Wp/m² | +3.2 Wp/m² for 735 | | Rated power | 725 Wp | 735 Wp | +10 W for 735 | ## Every compared parameter | Parameter | 725 | 735 | | --- | --- | --- | | Rated power | 725 Wp | 735 Wp | | Module efficiency | 23.30 % | 23.70 % | | Power density | 233.4 Wp/m² | 236.6 Wp/m² | | Open-circuit voltage | 50.98 V | 51.01 V | | Voltage at max power | 43.66 V | 43.71 V | | Short-circuit current | 17.64 A | 17.68 A | | Current at max power | 16.61 A | 16.72 A | | Temperature coefficient | -0.300 %/°C | -0.300 %/°C | | Dimensions | 2384x1303x35 mm | 2384x1303x35 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 39.0 kg | 39.0 kg | | Weight per kWp | 53.8 kg/kWp | 53.1 kg/kWp | | Product warranty | - | - | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.31 %/yr | 0.31 %/yr | | Cell technology | HJT | HJT | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 156 | 156 | | 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, 725:** 24,666 kWh - **Cumulative output, 735:** 25,006 kWh - **Gap:** 340 kWh ## Output when hot | Condition | Cell temperature | 725 | 735 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 725 W | 735 W | 100.0% of rated power | | Cool, bright day | 40 °C | 692 W | 702 W | 95.5% of rated power | | Typical summer roof | 55 °C | 660 W | 669 W | 91.0% of rated power | | Hot roof | 70 °C | 627 W | 636 W | 86.5% of rated power | ## Against the whole database | Measure | 725 | 735 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #1,017 | #517 | 14,005 | 735 leads by 500 places | | Power density | #936 | #582 | 14,005 | 735 leads by 354 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #7,866 | #6,818 | 14,005 | 735 leads by 1,048 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #1,517 | #1,146 | 14,005 | 735 leads by 371 places | ## Questions ### Which panel is better: Sunplus 725 or Sunplus 735? According to our database: **Sunplus 735** has higher module efficiency (**23.70%** vs **23.30%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Sunplus 725 and Sunplus 735? **Sunplus 725** has a module efficiency of **23.30%**, while **Sunplus 735** is **23.70%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Sunplus 725 use vs Sunplus 735? **Sunplus 725** uses **HJT** cells; **Sunplus 735** uses **HJT**. 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 Sunplus 725 and Sunplus 735? **Sunplus 725** has a **30 years** power warranty; **Sunplus 735** 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 Sunplus 725 and Sunplus 735 bifacial panels? Both **Sunplus 725** and **Sunplus 735** 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 - [Sunplus 725 vs Sunplus 750](https://comparepv.com/compare/sunplus-725/sunplus-750) - 3 differences, the largest is module efficiency - [Sunplus 725 vs Sunplus 745](https://comparepv.com/compare/sunplus-725/sunplus-745) - 3 differences, the largest is module efficiency - [Sunplus 725 vs Sunplus 740](https://comparepv.com/compare/sunplus-725/sunplus-740) - 3 differences, the largest is module efficiency - [Sunplus 725 vs Sunplus 730](https://comparepv.com/compare/sunplus-725/sunplus-730) - One difference: module efficiency - [Sunplus 725 vs Sunplus SR5-60HBD-600M](https://comparepv.com/compare/sunplus-725/sunplus-sr5-60hbd-600m) - 15 differences, the largest is module efficiency - [Sunplus 725 vs Sunplus SR5-60HBD-595M](https://comparepv.com/compare/sunplus-725/sunplus-sr5-60hbd-595m) - 15 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/sunplus-725/sunplus-735 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.