--- title: "DAH Solar DHM-60X10/FS(BW)-450 vs DAH Solar DHM-60X10/FS(BW)-455 - Solar Panel Comparison | ComparePV" description: "Compare DAH Solar DHM-60X10/FS(BW)-450 vs DAH Solar DHM-60X10/FS(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-dhm-60x10-fs-bw-450/dah-dhm-60x10-fs-bw-455" image: "https://comparepv.com/og/compare/panels/dah-dhm-60x10-fs-bw-450/dah-dhm-60x10-fs-bw-455.png" updated: 2026-09-11 --- # DAH Solar DHM-60X10/FS(BW)-450 vs DAH Solar DHM-60X10/FS(BW)-455 455 leads on the differences that matter The largest is module efficiency: 0.23 pp more efficient. 18 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [DAH Solar DHM-60X10/FS(BW)-450](https://comparepv.com/panel/dah-dhm-60x10-fs-bw-450) | [DAH Solar DHM-60X10/FS(BW)-455](https://comparepv.com/panel/dah-dhm-60x10-fs-bw-455) | | Manufacturer | DAH Solar | DAH Solar | | Power | 450 Wp | 455 Wp | | Efficiency | 20.85 % | 21.08 % | | Technology | PERC | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 450 | 455 | Difference | | --- | --- | --- | --- | | Module efficiency | 20.85 % | 21.08 % | +0.23 pp for 455 | ## Every compared parameter | Parameter | 450 | 455 | | --- | --- | --- | | Rated power | 450 Wp | 455 Wp | | Module efficiency | 20.85 % | 21.08 % | | Power density | 208.5 Wp/m² | 210.8 Wp/m² | | Open-circuit voltage | 41.60 V | 41.80 V | | Voltage at max power | 35.20 V | 35.40 V | | Short-circuit current | 13.66 A | 13.72 A | | Current at max power | 12.78 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 | 52.9 kg/kWp | 52.3 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 25 yrs | 25 yrs | | Annual degradation | 0.55 %/yr | 0.55 %/yr | | Cell technology | PERC | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 120 | 120 | | Bifacial | No | No | ## Thirty-year yield Each panel's own declared degradation curve, 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, 450:** 14,584 kWh - **Cumulative output, 455:** 14,746 kWh - **Gap:** 162 kWh ## Output when hot | Condition | Cell temperature | 450 | 455 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 450 W | 455 W | 100.0% of rated power | | Cool, bright day | 40 °C | 426 W | 431 W | 94.8% of rated power | | Typical summer roof | 55 °C | 403 W | 407 W | 89.5% of rated power | | Hot roof | 70 °C | 379 W | 383 W | 84.2% of rated power | ## Against the whole database | Measure | 450 | 455 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #10,438 | #9,654 | 14,129 | 455 leads by 784 places | | Power density | #10,415 | #9,602 | 14,129 | 455 leads by 813 places | | Heat behaviour | #10,489 | #10,489 | 14,129 | Tied - the same position in the database | | Weight | #6,656 | #5,814 | 14,129 | 455 leads by 842 places | | Warranty | #9,912 | #9,912 | 14,129 | Tied - the same position in the database | | Overall | #11,109 | #10,848 | 14,129 | 455 leads by 261 places | ## Questions ### Which panel is better: DAH Solar DHM-60X10/FS(BW)-450 or DAH Solar DHM-60X10/FS(BW)-455? According to our database: **DAH Solar DHM-60X10/FS(BW)-455** has higher module efficiency (**21.08%** vs **20.85%**). 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)-450 and DAH Solar DHM-60X10/FS(BW)-455? **DAH Solar DHM-60X10/FS(BW)-450** has a module efficiency of **20.85%**, while **DAH Solar DHM-60X10/FS(BW)-455** 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)-450 use vs DAH Solar DHM-60X10/FS(BW)-455? **DAH Solar DHM-60X10/FS(BW)-450** uses **PERC** cells; **DAH Solar DHM-60X10/FS(BW)-455** 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)-450 and DAH Solar DHM-60X10/FS(BW)-455? **DAH Solar DHM-60X10/FS(BW)-450** has a **25 years** power warranty; **DAH Solar DHM-60X10/FS(BW)-455** 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)-450 vs DAH Solar DHM-60X10/FS(BW)-460W](https://comparepv.com/compare/dah-dhm-60x10-fs-bw-450/dah-dhm-60x10-fs-bw-460w) - 3 differences, the largest is module efficiency - [DAH Solar DHM-60X10/FS(BW)-450 vs DAH Solar DHM-60X10/FS(BW)-460](https://comparepv.com/compare/dah-dhm-60x10-fs-bw-450/dah-dhm-60x10-fs-bw-460) - 3 differences, the largest is module efficiency - [DAH Solar DHM-60X10/FS(BW)-450 vs DAH Solar DHM-60X10/FS(BW)-455W](https://comparepv.com/compare/dah-dhm-60x10-fs-bw-450/dah-dhm-60x10-fs-bw-455w) - One difference: module efficiency - [DAH Solar DHM-60X10/FS(BW)-450 vs DAH Solar DHM-60X10/FS(BW)-450W](https://comparepv.com/compare/dah-dhm-60x10-fs-bw-450/dah-dhm-60x10-fs-bw-450w) - The same specification on paper - [DAH Solar DHM-60X10/FS(BW)-450 vs DAH Solar DHM-60X10/FS(BW)-445W](https://comparepv.com/compare/dah-dhm-60x10-fs-bw-450/dah-dhm-60x10-fs-bw-445w) - One difference: module efficiency - [DAH Solar DHM-60X10/FS(BW)-450 vs DAH Solar DHM-60X10/FS(BW)-445](https://comparepv.com/compare/dah-dhm-60x10-fs-bw-450/dah-dhm-60x10-fs-bw-445) - One difference: module efficiency --- Source: https://comparepv.com/compare/dah-dhm-60x10-fs-bw-450/dah-dhm-60x10-fs-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.