--- title: "DAH Solar DHN-48Z16/DG(BW)-430 vs DAH Solar DHN-48Z16/DG(BW)-455 - Solar Panel Comparison | ComparePV" description: "Compare DAH Solar DHN-48Z16/DG(BW)-430 vs DAH Solar DHN-48Z16/DG(BW)-455 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-48z16-dg-bw-430/dah-dhn-48z16-dg-bw-455" updated: 2026-09-11 --- # DAH Solar DHN-48Z16/DG(BW)-430 vs DAH Solar DHN-48Z16/DG(BW)-455 455 leads on the differences that matter The largest is module efficiency: 1.25 pp more efficient. 13 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [DAH Solar DHN-48Z16/DG(BW)-430](https://comparepv.com/panel/dah-dhn-48z16-dg-bw-430) | [DAH Solar DHN-48Z16/DG(BW)-455](https://comparepv.com/panel/dah-dhn-48z16-dg-bw-455) | | Manufacturer | DAH Solar | DAH Solar | | Power | 430 Wp | 455 Wp | | Efficiency | 21.52 % | 22.77 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 430 | 455 | Difference | | --- | --- | --- | --- | | Module efficiency | 21.52 % | 22.77 % | +1.25 pp for 455 | | Power density | 215.2 Wp/m² | 227.7 Wp/m² | +12.5 Wp/m² for 455 | | Rated power | 430 Wp | 455 Wp | +25 W for 455 | | Weight per kWp | 55.6 kg/kWp | 52.5 kg/kWp | -3.1 kg/kWp for 455 | | Open-circuit voltage | 35.20 V | 36.20 V | 1.00 V apart | | Voltage at max power | 29.80 V | 30.80 V | 1.00 V apart | ## Every compared parameter | Parameter | 430 | 455 | | --- | --- | --- | | Rated power | 430 Wp | 455 Wp | | Module efficiency | 21.52 % | 22.77 % | | Power density | 215.2 Wp/m² | 227.7 Wp/m² | | Open-circuit voltage | 35.20 V | 36.20 V | | Voltage at max power | 29.80 V | 30.80 V | | Short-circuit current | 15.40 A | 15.70 A | | Current at max power | 14.43 A | 14.77 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 1762x1134x30 mm | 1762x1134x30 mm | | Module area | 1.998 m² | 1.998 m² | | Weight | 23.9 kg | 23.9 kg | | Weight per kWp | 55.6 kg/kWp | 52.5 kg/kWp | | Product warranty | 25 yrs | 25 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 | 96 | 96 | | 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, 430:** 14,427 kWh - **Cumulative output, 455:** 15,266 kWh - **Gap:** 839 kWh ## Output when hot | Condition | Cell temperature | 430 | 455 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 430 W | 455 W | 100.0% of rated power | | Cool, bright day | 40 °C | 411 W | 435 W | 95.7% of rated power | | Typical summer roof | 55 °C | 393 W | 415 W | 91.3% of rated power | | Hot roof | 70 °C | 374 W | 396 W | 87.0% of rated power | ## Against the whole database | Measure | 430 | 455 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #7,853 | #3,073 | 14,005 | 455 leads by 4,780 places | | Power density | #7,816 | #2,888 | 14,005 | 455 leads by 4,928 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #9,974 | #6,129 | 14,005 | 455 leads by 3,845 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #8,234 | #5,689 | 14,005 | 455 leads by 2,545 places | ## Questions ### Which panel is better: DAH Solar DHN-48Z16/DG(BW)-430 or DAH Solar DHN-48Z16/DG(BW)-455? According to our database: **DAH Solar DHN-48Z16/DG(BW)-455** has higher module efficiency (**22.77%** vs **21.52%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of DAH Solar DHN-48Z16/DG(BW)-430 and DAH Solar DHN-48Z16/DG(BW)-455? **DAH Solar DHN-48Z16/DG(BW)-430** has a module efficiency of **21.52%**, while **DAH Solar DHN-48Z16/DG(BW)-455** is **22.77%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does DAH Solar DHN-48Z16/DG(BW)-430 use vs DAH Solar DHN-48Z16/DG(BW)-455? **DAH Solar DHN-48Z16/DG(BW)-430** uses **TOPCon** cells; **DAH Solar DHN-48Z16/DG(BW)-455** 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-48Z16/DG(BW)-430 and DAH Solar DHN-48Z16/DG(BW)-455? **DAH Solar DHN-48Z16/DG(BW)-430** has a **30 years** power warranty; **DAH Solar DHN-48Z16/DG(BW)-455** 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-48Z16/DG(BW)-430 and DAH Solar DHN-48Z16/DG(BW)-455 bifacial panels? Both **DAH Solar DHN-48Z16/DG(BW)-430** and **DAH Solar DHN-48Z16/DG(BW)-455** 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-48Z16/DG(BW)-430 vs DAH Solar DHN-48Z16/DG(BW)-450](https://comparepv.com/compare/dah-dhn-48z16-dg-bw-430/dah-dhn-48z16-dg-bw-450) - 4 differences, the largest is module efficiency - [DAH Solar DHN-48Z16/DG(BW)-430 vs DAH Solar DHN-48Z16/DG(BW)-445](https://comparepv.com/compare/dah-dhn-48z16-dg-bw-430/dah-dhn-48z16-dg-bw-445) - 3 differences, the largest is module efficiency - [DAH Solar DHN-48Z16/DG(BW)-430 vs DAH Solar DHN-48Z16/DG(BW)-440](https://comparepv.com/compare/dah-dhn-48z16-dg-bw-430/dah-dhn-48z16-dg-bw-440) - 3 differences, the largest is module efficiency - [DAH Solar DHN-48Z16/DG(BW)-430 vs DAH Solar DHN-48Z16/DG(BW)-435](https://comparepv.com/compare/dah-dhn-48z16-dg-bw-430/dah-dhn-48z16-dg-bw-435) - One difference: module efficiency - [DAH Solar DHN-48Z16/DG(BW)-430 vs DAH Solar DHN-48Z16/DG(BW)-425](https://comparepv.com/compare/dah-dhn-48z16-dg-bw-430/dah-dhn-48z16-dg-bw-425) - One difference: module efficiency - [DAH Solar DHN-48Z16/DG(BW)-430 vs DAH Solar DHN-66Y18/DG-725](https://comparepv.com/compare/dah-dhn-48z16-dg-bw-430/dah-dhn-66y18-dg-725) - 13 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/dah-dhn-48z16-dg-bw-430/dah-dhn-48z16-dg-bw-455 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.