--- title: "Resun Solar RS9H-M TOPCON-725 vs Resun Solar RS9H-M TOPCON-730 - Solar Panel Comparison | ComparePV" description: "Compare Resun Solar RS9H-M TOPCON-725 vs Resun Solar RS9H-M TOPCON-730 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/resun-solar-rs9h-m-topcon-725/resun-solar-rs9h-m-topcon-730" updated: 2026-09-11 --- # Resun Solar RS9H-M TOPCON-725 vs Resun Solar RS9H-M TOPCON-730 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 | [Resun Solar RS9H-M TOPCON-725](https://comparepv.com/panel/resun-solar-rs9h-m-topcon-725) | [Resun Solar RS9H-M TOPCON-730](https://comparepv.com/panel/resun-solar-rs9h-m-topcon-730) | | Manufacturer | Resun Solar | Resun Solar | | Power | 725 Wp | 730 Wp | | Efficiency | 23.34 % | 23.50 % | | Technology | TOPCon | TOPCon | ## Every compared parameter | Parameter | 725 | 730 | | --- | --- | --- | | Rated power | 725 Wp | 730 Wp | | Module efficiency | 23.34 % | 23.50 % | | Power density | 233.4 Wp/m² | 235.0 Wp/m² | | Open-circuit voltage | 49.60 V | 49.80 V | | Voltage at max power | 41.50 V | 41.70 V | | Short-circuit current | 18.54 A | 18.59 A | | Current at max power | 17.47 A | 17.51 A | | Temperature coefficient | -0.300 %/°C | -0.300 %/°C | | Dimensions | 2384x1303x30 mm | 2384x1303x30 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 32.3 kg | 32.3 kg | | Weight per kWp | 44.6 kg/kWp | 44.2 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.50 %/yr | 0.50 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 132 | | Bifacial | No | No | ## Thirty-year yield Declared annual degradation, with a 1.0% first-year loss assumed for both panels because at least one datasheet omits it, 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:** 23,947 kWh - **Cumulative output, 730:** 24,112 kWh - **Gap:** 165 kWh ## Output when hot | Condition | Cell temperature | 725 | 730 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 725 W | 730 W | 100.0% of rated power | | Cool, bright day | 40 °C | 692 W | 697 W | 95.5% of rated power | | Typical summer roof | 55 °C | 660 W | 664 W | 91.0% of rated power | | Hot roof | 70 °C | 627 W | 631 W | 86.5% of rated power | ## Against the whole database | Measure | 725 | 730 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #943 | #716 | 14,005 | 730 leads by 227 places | | Power density | #936 | #800 | 14,005 | 730 leads by 136 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #473 | #407 | 14,005 | 730 leads by 66 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #242 | #179 | 14,005 | 730 leads by 63 places | ## Questions ### Which panel is better: Resun Solar RS9H-M TOPCON-725 or Resun Solar RS9H-M TOPCON-730? According to our database: **Resun Solar RS9H-M TOPCON-730** has higher module efficiency (**23.50%** vs **23.34%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Resun Solar RS9H-M TOPCON-725 and Resun Solar RS9H-M TOPCON-730? **Resun Solar RS9H-M TOPCON-725** has a module efficiency of **23.34%**, while **Resun Solar RS9H-M TOPCON-730** is **23.50%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Resun Solar RS9H-M TOPCON-725 use vs Resun Solar RS9H-M TOPCON-730? **Resun Solar RS9H-M TOPCON-725** uses **TOPCon** cells; **Resun Solar RS9H-M TOPCON-730** 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 Resun Solar RS9H-M TOPCON-725 and Resun Solar RS9H-M TOPCON-730? **Resun Solar RS9H-M TOPCON-725** has a **30 years** power warranty; **Resun Solar RS9H-M TOPCON-730** 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 - [Resun Solar RS9H-M TOPCON-725 vs Resun Solar RS9H-M TOPCON-735](https://comparepv.com/compare/resun-solar-rs9h-m-topcon-725/resun-solar-rs9h-m-topcon-735) - 3 differences, the largest is module efficiency - [Resun Solar RS9H-M TOPCON-725 vs Resun Solar RS9H-M TOPCON-720](https://comparepv.com/compare/resun-solar-rs9h-m-topcon-725/resun-solar-rs9h-m-topcon-720) - The same specification on paper - [Resun Solar RS9H-M TOPCON-725 vs Resun Solar RS9H-M-720](https://comparepv.com/compare/resun-solar-rs9h-m-topcon-725/resun-solar-rs9h-m-720) - One difference: dimensions - [Resun Solar RS9H-M TOPCON-725 vs Resun Solar RS9H-M-DG-720](https://comparepv.com/compare/resun-solar-rs9h-m-topcon-725/resun-solar-rs9h-m-dg-720) - 4 differences, the largest is weight - [Resun Solar RS9H-M TOPCON-725 vs Resun Solar RS9H-M-715](https://comparepv.com/compare/resun-solar-rs9h-m-topcon-725/resun-solar-rs9h-m-715) - 4 differences, the largest is module efficiency - [Resun Solar RS9H-M TOPCON-725 vs Resun Solar RS9H-M-DG-715](https://comparepv.com/compare/resun-solar-rs9h-m-topcon-725/resun-solar-rs9h-m-dg-715) - 7 differences, the largest is weight --- Source: https://comparepv.com/compare/resun-solar-rs9h-m-topcon-725/resun-solar-rs9h-m-topcon-730 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.