--- title: "DAH Solar DHM-60X10/FS(BW)-455 vs DAH Solar DHM-60X10/FS(BW)-455W - Solar Panel Comparison | ComparePV" description: "Compare DAH Solar DHM-60X10/FS(BW)-455 vs DAH Solar DHM-60X10/FS(BW)-455W side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/dah-dhm-60x10-fs-bw-455/dah-dhm-60x10-fs-bw-455w" image: "https://comparepv.com/og/compare/panels/dah-dhm-60x10-fs-bw-455/dah-dhm-60x10-fs-bw-455w.png" updated: 2026-09-11 --- # DAH Solar DHM-60X10/FS(BW)-455 vs DAH Solar DHM-60X10/FS(BW)-455W Identical on every published parameter All 18 comparable parameters agree, with 1 more left out because at least one datasheet does not publish it. 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 | [DAH Solar DHM-60X10/FS(BW)-455](https://comparepv.com/panel/dah-dhm-60x10-fs-bw-455) | [DAH Solar DHM-60X10/FS(BW)-455W](https://comparepv.com/panel/dah-dhm-60x10-fs-bw-455w) | | Manufacturer | DAH Solar | DAH Solar | | Power | 455 Wp | 455 Wp | | Efficiency | 21.08 % | 21.08 % | | Technology | PERC | PERC | ## Every compared parameter | Parameter | 455 | 455W | | --- | --- | --- | | Rated power | 455 Wp | 455 Wp | | Module efficiency | 21.08 % | 21.08 % | | Power density | 210.8 Wp/m² | 210.8 Wp/m² | | Open-circuit voltage | 41.80 V | 41.80 V | | Voltage at max power | 35.40 V | 35.40 V | | Short-circuit current | 13.72 A | 13.72 A | | Current at max power | 12.85 A | 12.85 A | | Temperature coefficient | -0.350 %/°C | -0.350 %/°C | | Dimensions | 1903x1134x32 mm | 1903x1134x32 mm | | Module area | 2.158 m² | 2.158 m² | | Weight | 23.8 kg | 23.8 kg | | Weight per kWp | 52.3 kg/kWp | 52.3 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 25 yrs | 25 yrs | | Annual degradation | 0.55 %/yr | - | | Cell technology | PERC | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 120 | 120 | | Bifacial | No | No | ## Thirty-year yield Declared first-year losses, with 0.40% a year afterwards assumed for both panels, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.350 %/°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, 455:** 15,102 kWh - **Cumulative output, 455W:** 15,102 kWh - **Gap:** No difference ## Output when hot | Condition | Cell temperature | 455 | 455W | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 455 W | 455 W | 100.0% of rated power | | Cool, bright day | 40 °C | 431 W | 431 W | 94.8% of rated power | | Typical summer roof | 55 °C | 407 W | 407 W | 89.5% of rated power | | Hot roof | 70 °C | 383 W | 383 W | 84.2% of rated power | ## Against the whole database | Measure | 455 | 455W | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #9,654 | #9,654 | 14,129 | Tied - the same position in the database | | Power density | #9,602 | #9,602 | 14,129 | Tied - the same position in the database | | Heat behaviour | #10,489 | #10,489 | 14,129 | Tied - the same position in the database | | Weight | #5,814 | #5,814 | 14,129 | Tied - the same position in the database | | Warranty | #9,912 | #9,912 | 14,129 | Tied - the same position in the database | | Overall | #10,848 | #10,848 | 14,129 | Tied - the same position in the database | ## Questions ### Which panel is better: DAH Solar DHM-60X10/FS(BW)-455 or DAH Solar DHM-60X10/FS(BW)-455W? According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of DAH Solar DHM-60X10/FS(BW)-455 and DAH Solar DHM-60X10/FS(BW)-455W? **DAH Solar DHM-60X10/FS(BW)-455** has a module efficiency of **21.08%**, while **DAH Solar DHM-60X10/FS(BW)-**455 W**** is **21.08%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does DAH Solar DHM-60X10/FS(BW)-455 use vs DAH Solar DHM-60X10/FS(BW)-455W? **DAH Solar DHM-60X10/FS(BW)-455** uses **PERC** cells; **DAH Solar DHM-60X10/FS(BW)-**455 W**** uses **PERC**. 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 DHM-60X10/FS(BW)-455 and DAH Solar DHM-60X10/FS(BW)-455W? **DAH Solar DHM-60X10/FS(BW)-455** has a **25 years** power warranty; **DAH Solar DHM-60X10/FS(BW)-**455 W**** has a **25 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 - [DAH Solar DHM-60X10/FS(BW)-455 vs DAH Solar DHM-60X10/FS(BW)-460W](https://comparepv.com/compare/dah-dhm-60x10-fs-bw-455/dah-dhm-60x10-fs-bw-460w) - One difference: module efficiency - [DAH Solar DHM-60X10/FS(BW)-455 vs DAH Solar DHM-60X10/FS(BW)-460](https://comparepv.com/compare/dah-dhm-60x10-fs-bw-455/dah-dhm-60x10-fs-bw-460) - One difference: module efficiency - [DAH Solar DHM-60X10/FS(BW)-455 vs DAH Solar DHM-60X10/FS(BW)-450W](https://comparepv.com/compare/dah-dhm-60x10-fs-bw-455/dah-dhm-60x10-fs-bw-450w) - One difference: module efficiency - [DAH Solar DHM-60X10/FS(BW)-455 vs DAH Solar DHM-60X10/FS(BW)-450](https://comparepv.com/compare/dah-dhm-60x10-fs-bw-455/dah-dhm-60x10-fs-bw-450) - One difference: module efficiency - [DAH Solar DHM-60X10/FS(BW)-455 vs DAH Solar DHM-60X10/FS(BW)-445W](https://comparepv.com/compare/dah-dhm-60x10-fs-bw-455/dah-dhm-60x10-fs-bw-445w) - 3 differences, the largest is module efficiency - [DAH Solar DHM-60X10/FS(BW)-455 vs DAH Solar DHM-60X10/FS(BW)-445](https://comparepv.com/compare/dah-dhm-60x10-fs-bw-455/dah-dhm-60x10-fs-bw-445) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/dah-dhm-60x10-fs-bw-455/dah-dhm-60x10-fs-bw-455w 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.