--- title: "Avaada AVN66G12RG-620 vs Avaada AVN66G12RG-625 - Solar Panel Comparison | ComparePV" description: "Compare Avaada AVN66G12RG-620 vs Avaada AVN66G12RG-625 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/avaada-avn66g12rg-620/avaada-avn66g12rg-625" updated: 2026-09-11 --- # Avaada AVN66G12RG-620 vs Avaada AVN66G12RG-625 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 | [Avaada AVN66G12RG-620](https://comparepv.com/panel/avaada-avn66g12rg-620) | [Avaada AVN66G12RG-625](https://comparepv.com/panel/avaada-avn66g12rg-625) | | Manufacturer | Avaada | Avaada | | Power | 620 Wp | 625 Wp | | Efficiency | 23.00 % | 23.14 % | | Technology | TOPCon | TOPCon | ## Every compared parameter | Parameter | 620 | 625 | | --- | --- | --- | | Rated power | 620 Wp | 625 Wp | | Module efficiency | 23.00 % | 23.14 % | | Power density | 229.5 Wp/m² | 231.4 Wp/m² | | Open-circuit voltage | 48.20 V | 48.40 V | | Voltage at max power | 41.25 V | 41.45 V | | Short-circuit current | 15.95 A | 16.00 A | | Current at max power | 15.04 A | 15.08 A | | Temperature coefficient | -0.300 %/°C | -0.300 %/°C | | Dimensions | 2382x1134x35 mm | 2382x1134x35 mm | | Module area | 2.701 m² | 2.701 m² | | Weight | 34.0 kg | 34.0 kg | | Weight per kWp | 54.8 kg/kWp | 54.4 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 | 132 | 132 | | 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, 620:** 20,802 kWh - **Cumulative output, 625:** 20,970 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | 620 | 625 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 620 W | 625 W | 100.0% of rated power | | Cool, bright day | 40 °C | 592 W | 597 W | 95.5% of rated power | | Typical summer roof | 55 °C | 564 W | 569 W | 91.0% of rated power | | Hot roof | 70 °C | 536 W | 541 W | 86.5% of rated power | ## Against the whole database | Measure | 620 | 625 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #1,919 | #1,509 | 14,005 | 625 leads by 410 places | | Power density | #2,191 | #1,513 | 14,005 | 625 leads by 678 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #9,232 | #8,704 | 14,005 | 625 leads by 528 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #2,549 | #2,258 | 14,005 | 625 leads by 291 places | ## Questions ### Which panel is better: Avaada AVN66G12RG-620 or Avaada AVN66G12RG-625? According to our database: **Avaada AVN66G12RG-625** has higher module efficiency (**23.14%** vs **23.00%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Avaada AVN66G12RG-620 and Avaada AVN66G12RG-625? **Avaada AVN66G12RG-620** has a module efficiency of **23.00%**, while **Avaada AVN66G12RG-625** is **23.14%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Avaada AVN66G12RG-620 use vs Avaada AVN66G12RG-625? **Avaada AVN66G12RG-620** uses **TOPCon** cells; **Avaada AVN66G12RG-625** 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 Avaada AVN66G12RG-620 and Avaada AVN66G12RG-625? **Avaada AVN66G12RG-620** has a **30 years** power warranty; **Avaada AVN66G12RG-625** 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 Avaada AVN66G12RG-620 and Avaada AVN66G12RG-625 bifacial panels? Both **Avaada AVN66G12RG-620** and **Avaada AVN66G12RG-625** 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 - [Avaada AVN66G12RG-620 vs Avaada AVN66G12G](https://comparepv.com/compare/avaada-avn66g12rg-620/avaada-avn66g12g) - 7 differences, the largest is rated power - [Avaada AVN66G12RG-620 vs Avaada AVN66G12TB](https://comparepv.com/compare/avaada-avn66g12rg-620/avaada-avn66g12tb) - 7 differences, the largest is rated power - [Avaada AVN66G12RG-620 vs Avaada AVN66G12RG-630](https://comparepv.com/compare/avaada-avn66g12rg-620/avaada-avn66g12rg-630) - 3 differences, the largest is module efficiency - [Avaada AVN66G12RG-620 vs Avaada AVN66G12RTB](https://comparepv.com/compare/avaada-avn66g12rg-620/avaada-avn66g12rtb) - 3 differences, the largest is module efficiency - [Avaada AVN66G12RG-620 vs Avaada AVN66G12RG-615](https://comparepv.com/compare/avaada-avn66g12rg-620/avaada-avn66g12rg-615) - One difference: module efficiency - [Avaada AVN66G12RG-620 vs Avaada AVN66G12RG-610](https://comparepv.com/compare/avaada-avn66g12rg-620/avaada-avn66g12rg-610) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/avaada-avn66g12rg-620/avaada-avn66g12rg-625 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.