---
title: "Aptos Solar DNA-120-BF26-365W vs Aptos Solar DNA-144-BF10-550W-DG - Solar Panel Comparison | ComparePV"
description: "Compare Aptos Solar DNA-120-BF26-365W vs Aptos Solar DNA-144-BF10-550W-DG 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-bf26-365w/aptos-solar-dna-144-bf10-550w-dg"
updated: 2026-09-11
---

# Aptos Solar DNA-120-BF26-365W vs Aptos Solar DNA-144-BF10-550W-DG

144-BF10-550W-DG leads on the differences that matter

The largest is module efficiency: 1.28 pp more efficient. 6 of 19 comparable parameters are identical.


## The two panels


| Attribute | A | B |
| --- | --- | --- |
| Panel | [Aptos Solar DNA-120-BF26-365W](https://comparepv.com/panel/aptos-solar-dna-120-bf26-365w) | [Aptos Solar DNA-144-BF10-550W-DG](https://comparepv.com/panel/aptos-solar-dna-144-bf10-550w-dg) |
| Manufacturer | Aptos Solar | Aptos Solar |
| Power | 365 Wp | 550 Wp |
| Efficiency | 20.01 % | 21.29 % |
| Technology | PERC | PERC |


## Where they differ

Ranked by how much the difference matters, not by datasheet order.


| Parameter | 120-BF26-365W | 144-BF10-550W-DG | Difference |
| --- | --- | --- | --- |
| Module efficiency | 20.01 % | 21.29 % | +1.28 pp for 144-BF10-550W-DG |
| Rated power | 365 Wp | 550 Wp | +185 W for 144-BF10-550W-DG |
| Power density | 200.1 Wp/m² | 212.9 Wp/m² | +12.9 Wp/m² for 144-BF10-550W-DG |
| Temperature coefficient | -0.360 %/°C | -0.335 %/°C | +0.025 %/°C for 144-BF10-550W-DG |
| Weight | 19.5 kg | 32.3 kg | -12.8 kg for 120-BF26-365W |
| Open-circuit voltage | 41.10 V | 49.80 V | 8.70 V apart |
| Short-circuit current | 11.19 A | 13.99 A | 2.80 A apart |
| Module area | 1.824 m² | 2.583 m² | 0.759 m² apart |
| Weight per kWp | 53.4 kg/kWp | 58.7 kg/kWp | -5.3 kg/kWp for 120-BF26-365W |
| Voltage at max power | 34.30 V | 44.15 V | 9.85 V apart |
| Cell count | 120 | 144 | 24 cells apart |
| Current at max power | 10.66 A | 12.45 A | 1.79 A apart |
| Dimensions | 1756x1039x35 mm | 2278x1134x35 mm | 1756x1039x35 mm vs 2278x1134x35 mm |


## Every compared parameter


| Parameter | 120-BF26-365W | 144-BF10-550W-DG |
| --- | --- | --- |
| Rated power | 365 Wp | 550 Wp |
| Module efficiency | 20.01 % | 21.29 % |
| Power density | 200.1 Wp/m² | 212.9 Wp/m² |
| Open-circuit voltage | 41.10 V | 49.80 V |
| Voltage at max power | 34.30 V | 44.15 V |
| Short-circuit current | 11.19 A | 13.99 A |
| Current at max power | 10.66 A | 12.45 A |
| Temperature coefficient | -0.360 %/°C | -0.335 %/°C |
| Dimensions | 1756x1039x35 mm | 2278x1134x35 mm |
| Module area | 1.824 m² | 2.583 m² |
| Weight | 19.5 kg | 32.3 kg |
| Weight per kWp | 53.4 kg/kWp | 58.7 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 | 120 | 144 |
| Bifacial | Yes | Yes |


## Thirty-year yield

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

- **Cumulative output, 120-BF26-365W:** 11,848 kWh
- **Cumulative output, 144-BF10-550W-DG:** 17,859 kWh
- **Gap:** 6,011 kWh


## Output when hot


| Condition | Cell temperature | 120-BF26-365W | 144-BF10-550W-DG | Retained |
| --- | --- | --- | --- | --- |
| Standard test conditions | 25 °C | 365 W | 550 W | 100.0% of rated power |
| Cool, bright day | 40 °C | 345 W | 522 W | 94.6% of rated power |
| Typical summer roof | 55 °C | 326 W | 495 W | 89.2% of rated power |
| Hot roof | 70 °C | 306 W | 467 W | 83.8% of rated power |


## Against the whole database


| Measure | 120-BF26-365W | 144-BF10-550W-DG | Out of | Note |
| --- | --- | --- | --- | --- |
| Efficiency | #12,197 | #8,708 | 14,005 | 144-BF10-550W-DG leads by 3,489 places |
| Power density | #12,214 | #8,497 | 14,005 | 144-BF10-550W-DG leads by 3,717 places |
| Heat behaviour | #12,345 | #8,753 | 14,005 | 144-BF10-550W-DG leads by 3,592 places |
| Weight | #7,348 | #11,864 | 14,005 | 120-BF26-365W leads by 4,516 places |
| Warranty | #21 | #21 | 14,005 | Tied - the same position in the database |
| Overall | #10,495 | #3,247 | 14,005 | 144-BF10-550W-DG leads by 7,248 places |


## Questions


### Which panel is better: Aptos Solar DNA-120-BF26-365W or Aptos Solar DNA-144-BF10-550W-DG?

According to our database: **Aptos Solar DNA-144-BF10-**550 W**-DG** has higher module efficiency (**21.29%** vs **20.01%**); **Aptos Solar DNA-144-BF10-**550 W**-DG** tolerates heat better (temp coeff **-0.335%/°C** vs **-0.360%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture.


### What is the efficiency of Aptos Solar DNA-120-BF26-365W and Aptos Solar DNA-144-BF10-550W-DG?

**Aptos Solar DNA-120-BF26-**365 W**** has a module efficiency of **20.01%**, while **Aptos Solar DNA-144-BF10-**550 W**-DG** is **21.29%**. Higher efficiency means more electricity from the same roof area - useful when space is limited.


### What cell technology does Aptos Solar DNA-120-BF26-365W use vs Aptos Solar DNA-144-BF10-550W-DG?

**Aptos Solar DNA-120-BF26-**365 W**** uses **PERC** cells; **Aptos Solar DNA-144-BF10-**550 W**-DG** 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-BF26-365W and Aptos Solar DNA-144-BF10-550W-DG?

**Aptos Solar DNA-120-BF26-**365 W**** has a **30 years** power warranty; **Aptos Solar DNA-144-BF10-**550 W**-DG** 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 Aptos Solar DNA-120-BF26-365W and Aptos Solar DNA-144-BF10-550W-DG bifacial panels?

Both **Aptos Solar DNA-120-BF26-**365 W**** and **Aptos Solar DNA-144-BF10-**550 W**-DG** 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

- [Aptos Solar DNA-120-BF26-365W vs Aptos Solar DNA-120-BF10-460W](https://comparepv.com/compare/aptos-solar-dna-120-bf26-365w/aptos-solar-dna-120-bf10-460w) - 11 differences, the largest is module efficiency
- [Aptos Solar DNA-120-BF26-365W vs Aptos Solar DNA-120-BF10-455W](https://comparepv.com/compare/aptos-solar-dna-120-bf26-365w/aptos-solar-dna-120-bf10-455w) - 10 differences, the largest is module efficiency
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- [Aptos Solar DNA-120-BF26-365W vs Aptos Solar DNA-120-BF26-370W](https://comparepv.com/compare/aptos-solar-dna-120-bf26-365w/aptos-solar-dna-120-bf26-370w) - One difference: module efficiency
- [Aptos Solar DNA-120-BF26-365W vs Aptos Solar DNA-120-BF26-360W](https://comparepv.com/compare/aptos-solar-dna-120-bf26-365w/aptos-solar-dna-120-bf26-360w) - One difference: module efficiency


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Source: https://comparepv.com/compare/aptos-solar-dna-120-bf26-365w/aptos-solar-dna-144-bf10-550w-dg

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.