--- title: "Aptos Solar DNA-120-MF10-445W vs Aptos Solar DNA-120-MF10-455W - Solar Panel Comparison | ComparePV" description: "Compare Aptos Solar DNA-120-MF10-445W vs Aptos Solar DNA-120-MF10-455W side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/aptos-solar-dna-120-mf10-445w/aptos-solar-dna-120-mf10-455w" updated: 2026-09-11 --- # Aptos Solar DNA-120-MF10-445W vs Aptos Solar DNA-120-MF10-455W 455W leads on the differences that matter The largest is module efficiency: 0.46 pp more efficient. 15 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Aptos Solar DNA-120-MF10-445W](https://comparepv.com/panel/aptos-solar-dna-120-mf10-445w) | [Aptos Solar DNA-120-MF10-455W](https://comparepv.com/panel/aptos-solar-dna-120-mf10-455w) | | Manufacturer | Aptos Solar | Aptos Solar | | Power | 445 Wp | 455 Wp | | Efficiency | 20.57 % | 21.03 % | | Technology | PERC | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 445W | 455W | Difference | | --- | --- | --- | --- | | Module efficiency | 20.57 % | 21.03 % | +0.46 pp for 455W | | Power density | 205.7 Wp/m² | 210.3 Wp/m² | +4.6 Wp/m² for 455W | | Rated power | 445 Wp | 455 Wp | +10 W for 455W | ## Every compared parameter | Parameter | 445W | 455W | | --- | --- | --- | | Rated power | 445 Wp | 455 Wp | | Module efficiency | 20.57 % | 21.03 % | | Power density | 205.7 Wp/m² | 210.3 Wp/m² | | Open-circuit voltage | 41.79 V | 41.88 V | | Voltage at max power | 35.03 V | 35.27 V | | Short-circuit current | 13.36 A | 13.63 A | | Current at max power | 12.70 A | 12.90 A | | Temperature coefficient | -0.350 %/°C | -0.350 %/°C | | Dimensions | 1908x1134x35 mm | 1908x1134x35 mm | | Module area | 2.164 m² | 2.164 m² | | Weight | 24.2 kg | 24.2 kg | | Weight per kWp | 54.4 kg/kWp | 53.2 kg/kWp | | Product warranty | 30 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.54 %/yr | 0.54 %/yr | | Cell technology | PERC | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | - | - | | 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, 445W:** 14,445 kWh - **Cumulative output, 455W:** 14,770 kWh - **Gap:** 325 kWh ## Output when hot | Condition | Cell temperature | 445W | 455W | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 445 W | 455 W | 100.0% of rated power | | Cool, bright day | 40 °C | 422 W | 431 W | 94.8% of rated power | | Typical summer roof | 55 °C | 398 W | 407 W | 89.5% of rated power | | Hot roof | 70 °C | 375 W | 383 W | 84.2% of rated power | ## Against the whole database | Measure | 445W | 455W | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #11,187 | #9,671 | 14,005 | 455W leads by 1,516 places | | Power density | #11,154 | #9,646 | 14,005 | 455W leads by 1,508 places | | Heat behaviour | #10,419 | #10,419 | 14,005 | Tied - the same position in the database | | Weight | #8,683 | #7,011 | 14,005 | 455W leads by 1,672 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #7,700 | #6,750 | 14,005 | 455W leads by 950 places | ## Questions ### Which panel is better: Aptos Solar DNA-120-MF10-445W or Aptos Solar DNA-120-MF10-455W? According to our database: **Aptos Solar DNA-120-MF10-**455 W**** has higher module efficiency (**21.03%** vs **20.57%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Aptos Solar DNA-120-MF10-445W and Aptos Solar DNA-120-MF10-455W? **Aptos Solar DNA-120-MF10-**445 W**** has a module efficiency of **20.57%**, while **Aptos Solar DNA-120-MF10-**455 W**** is **21.03%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Aptos Solar DNA-120-MF10-445W use vs Aptos Solar DNA-120-MF10-455W? **Aptos Solar DNA-120-MF10-**445 W**** uses **PERC** cells; **Aptos Solar DNA-120-MF10-**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 Aptos Solar DNA-120-MF10-445W and Aptos Solar DNA-120-MF10-455W? **Aptos Solar DNA-120-MF10-**445 W**** has a **30 years** power warranty; **Aptos Solar DNA-120-MF10-**455 W**** 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. ## Related comparisons - [Aptos Solar DNA-120-MF10-445W vs Aptos Solar DNA-120-MF10-460W](https://comparepv.com/compare/aptos-solar-dna-120-mf10-445w/aptos-solar-dna-120-mf10-460w) - 3 differences, the largest is module efficiency - [Aptos Solar DNA-120-MF10-445W vs Aptos Solar DNA-120-MF10-450W](https://comparepv.com/compare/aptos-solar-dna-120-mf10-445w/aptos-solar-dna-120-mf10-450w) - One difference: module efficiency - [Aptos Solar DNA-120-MF10-445W vs Aptos Solar DNA-144-BF10-550W-DG](https://comparepv.com/compare/aptos-solar-dna-120-mf10-445w/aptos-solar-dna-144-bf10-550w-dg) - 12 differences, the largest is module efficiency - [Aptos Solar DNA-120-MF10-445W vs Aptos Solar DNA-144-BF10-545W-DG](https://comparepv.com/compare/aptos-solar-dna-120-mf10-445w/aptos-solar-dna-144-bf10-545w-dg) - 12 differences, the largest is rated power - [Aptos Solar DNA-120-MF10-445W vs Aptos Solar DNA-144-BF10-540W-DG](https://comparepv.com/compare/aptos-solar-dna-120-mf10-445w/aptos-solar-dna-144-bf10-540w-dg) - 11 differences, the largest is rated power - [Aptos Solar DNA-120-MF10-445W vs Aptos Solar DNA-120-BF10-460W](https://comparepv.com/compare/aptos-solar-dna-120-mf10-445w/aptos-solar-dna-120-bf10-460w) - 7 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/aptos-solar-dna-120-mf10-445w/aptos-solar-dna-120-mf10-455w 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.