--- title: "DAH Solar DHN-66Y18/DG-710 vs DAH Solar DHN-66Y18/DG-725 - Solar Panel Comparison | ComparePV" description: "Compare DAH Solar DHN-66Y18/DG-710 vs DAH Solar DHN-66Y18/DG-725 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/dah-dhn-66y18-dg-710/dah-dhn-66y18-dg-725" image: "https://comparepv.com/og/compare/panels/dah-dhn-66y18-dg-710/dah-dhn-66y18-dg-725.png" updated: 2026-09-11 --- # DAH Solar DHN-66Y18/DG-710 vs DAH Solar DHN-66Y18/DG-725 725 leads on the differences that matter The largest is module efficiency: 0.48 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [DAH Solar DHN-66Y18/DG-710](https://comparepv.com/panel/dah-dhn-66y18-dg-710) | [DAH Solar DHN-66Y18/DG-725](https://comparepv.com/panel/dah-dhn-66y18-dg-725) | | Manufacturer | DAH Solar | DAH Solar | | Power | 710 Wp | 725 Wp | | Efficiency | 22.86 % | 23.34 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 710 | 725 | Difference | | --- | --- | --- | --- | | Module efficiency | 22.86 % | 23.34 % | +0.48 pp for 725 | | Power density | 228.6 Wp/m² | 233.4 Wp/m² | +4.8 Wp/m² for 725 | | Rated power | 710 Wp | 725 Wp | +15 W for 725 | ## Every compared parameter | Parameter | 710 | 725 | | --- | --- | --- | | Rated power | 710 Wp | 725 Wp | | Module efficiency | 22.86 % | 23.34 % | | Power density | 228.6 Wp/m² | 233.4 Wp/m² | | Open-circuit voltage | 48.00 V | 48.60 V | | Voltage at max power | 40.40 V | 41.00 V | | Short-circuit current | 18.61 A | 18.79 A | | Current at max power | 17.57 A | 17.68 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 2384x1303x33 mm | 2384x1303x33 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 36.7 kg | 36.7 kg | | Weight per kWp | 51.7 kg/kWp | 50.6 kg/kWp | | Product warranty | 15 yrs | 15 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 (-0.290 %/°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, 710:** 23,822 kWh - **Cumulative output, 725:** 24,325 kWh - **Gap:** 503 kWh ## Output when hot | Condition | Cell temperature | 710 | 725 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 710 W | 725 W | 100.0% of rated power | | Cool, bright day | 40 °C | 679 W | 693 W | 95.7% of rated power | | Typical summer roof | 55 °C | 648 W | 662 W | 91.3% of rated power | | Hot roof | 70 °C | 617 W | 630 W | 87.0% of rated power | ## Against the whole database | Measure | 710 | 725 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #2,591 | #981 | 14,129 | 725 leads by 1,610 places | | Power density | #2,529 | #974 | 14,129 | 725 leads by 1,555 places | | Heat behaviour | #2,220 | #2,220 | 14,129 | Tied - the same position in the database | | Weight | #5,102 | #4,089 | 14,129 | 725 leads by 1,013 places | | Warranty | #21 | #21 | 14,129 | Tied - the same position in the database | | Overall | #614 | #252 | 14,129 | 725 leads by 362 places | ## Questions ### Which panel is better: DAH Solar DHN-66Y18/DG-710 or DAH Solar DHN-66Y18/DG-725? According to our database: **DAH Solar DHN-66Y18/DG-725** has higher module efficiency (**23.34%** vs **22.86%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of DAH Solar DHN-66Y18/DG-710 and DAH Solar DHN-66Y18/DG-725? **DAH Solar DHN-66Y18/DG-710** has a module efficiency of **22.86%**, while **DAH Solar DHN-66Y18/DG-725** is **23.34%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does DAH Solar DHN-66Y18/DG-710 use vs DAH Solar DHN-66Y18/DG-725? **DAH Solar DHN-66Y18/DG-710** uses **TOPCon** cells; **DAH Solar DHN-66Y18/DG-725** 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 DAH Solar DHN-66Y18/DG-710 and DAH Solar DHN-66Y18/DG-725? **DAH Solar DHN-66Y18/DG-710** has a **30 years** power warranty; **DAH Solar DHN-66Y18/DG-725** 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 DAH Solar DHN-66Y18/DG-710 and DAH Solar DHN-66Y18/DG-725 bifacial panels? Both **DAH Solar DHN-66Y18/DG-710** and **DAH Solar DHN-66Y18/DG-725** 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 - [DAH Solar DHN-66Y18/DG-710 vs DAH Solar DHN-66Y18/DG-720](https://comparepv.com/compare/dah-dhn-66y18-dg-710/dah-dhn-66y18-dg-720) - 3 differences, the largest is module efficiency - [DAH Solar DHN-66Y18/DG-710 vs DAH Solar DHN-66Y18/DG-715](https://comparepv.com/compare/dah-dhn-66y18-dg-710/dah-dhn-66y18-dg-715) - The same specification on paper - [DAH Solar DHN-66Y18/DG-710 vs DAH Solar DHN-66Y18/DG-705](https://comparepv.com/compare/dah-dhn-66y18-dg-710/dah-dhn-66y18-dg-705) - The same specification on paper - [DAH Solar DHN-66Y18/DG-710 vs DAH Solar DHN-66Y18/DG-700](https://comparepv.com/compare/dah-dhn-66y18-dg-710/dah-dhn-66y18-dg-700) - 3 differences, the largest is module efficiency - [DAH Solar DHN-66Y18/DG-710 vs DAH Solar DAS-DH132NC-715](https://comparepv.com/compare/dah-dhn-66y18-dg-710/dah-solar-das-dh132nc-715) - 3 differences, the largest is temperature coefficient - [DAH Solar DHN-66Y18/DG-710 vs DAH Solar DAS-DH132NC-710](https://comparepv.com/compare/dah-dhn-66y18-dg-710/dah-solar-das-dh132nc-710) - 3 differences, the largest is temperature coefficient --- Source: https://comparepv.com/compare/dah-dhn-66y18-dg-710/dah-dhn-66y18-dg-725 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.