---
title: "GCL NT12R/48GDF-455W vs Q-Cells Q.TRON BLK M-G2+ 430 - Solar Panel Comparison | ComparePV"
description: "Compare GCL NT12R/48GDF-455W vs Q-Cells Q.TRON BLK M-G2+ 430 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification."
source: "https://comparepv.com/compare/gcl-nt12r-48gdf-455w/hanwha-q-cells-q-tron-blk-m-g2-430"
updated: 2026-09-11
---

# GCL NT12R/48GDF-455W vs Q-Cells Q.TRON BLK M-G2+ 430

NT12R/48GDF-455W leads on the differences that matter

The largest is module efficiency: 0.77 pp more efficient. 2 of 19 comparable parameters are identical.


## The two panels


| Attribute | A | B |
| --- | --- | --- |
| Panel | [GCL NT12R/48GDF-455W](https://comparepv.com/panel/gcl-nt12r-48gdf-455w) | [Q-Cells Q.TRON BLK M-G2+ 430](https://comparepv.com/panel/hanwha-q-cells-q-tron-blk-m-g2-430) |
| Manufacturer | GCL | Q-Cells |
| Power | 455 Wp | 430 Wp |
| Efficiency | 22.77 % | 22.00 % |
| Technology | TOPCon | N-type |


## Where they differ

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


| Parameter | NT12R/48GDF-455W | Q.TRON BLK M-G2+ 430 | Difference |
| --- | --- | --- | --- |
| Module efficiency | 22.77 % | 22.00 % | +0.77 pp for NT12R/48GDF-455W |
| Performance warranty | 30 yrs | 25 yrs | +5 yrs for NT12R/48GDF-455W |
| Product warranty | 12 yrs | 25 yrs | +13 yrs for Q.TRON BLK M-G2+ 430 |
| Power density | 227.7 Wp/m² | 220.2 Wp/m² | +7.5 Wp/m² for NT12R/48GDF-455W |
| Rated power | 455 Wp | 430 Wp | +25 W for NT12R/48GDF-455W |
| Weight | 24.5 kg | 21.2 kg | -3.3 kg for Q.TRON BLK M-G2+ 430 |
| Open-circuit voltage | 35.30 V | 39.32 V | 4.02 V apart |
| Short-circuit current | 16.00 A | 13.74 A | 2.26 A apart |
| Weight per kWp | 53.8 kg/kWp | 49.3 kg/kWp | -4.5 kg/kWp for Q.TRON BLK M-G2+ 430 |
| Annual degradation | 0.40 %/yr | 0.33 %/yr | -0.07 %/yr for Q.TRON BLK M-G2+ 430 |
| Cell technology | TOPCon | N-type | TOPCon vs N-type |
| Module area | 1.998 m² | 1.953 m² | 0.045 m² apart |
| Current at max power | 15.20 A | 13.05 A | 2.15 A apart |
| Cell count | 96 | 108 | 12 cells apart |
| Bifacial | Yes | No | Yes vs No |
| Voltage at max power | 29.94 V | 32.94 V | 3.00 V apart |
| Dimensions | 1762x1134x30 mm | 1722x1134x30 mm | 1762x1134x30 mm vs 1722x1134x30 mm |


## Every compared parameter


| Parameter | NT12R/48GDF-455W | Q.TRON BLK M-G2+ 430 |
| --- | --- | --- |
| Rated power | 455 Wp | 430 Wp |
| Module efficiency | 22.77 % | 22.00 % |
| Power density | 227.7 Wp/m² | 220.2 Wp/m² |
| Open-circuit voltage | 35.30 V | 39.32 V |
| Voltage at max power | 29.94 V | 32.94 V |
| Short-circuit current | 16.00 A | 13.74 A |
| Current at max power | 15.20 A | 13.05 A |
| Temperature coefficient | -0.290 %/°C | -0.290 %/°C |
| Dimensions | 1762x1134x30 mm | 1722x1134x30 mm |
| Module area | 1.998 m² | 1.953 m² |
| Weight | 24.5 kg | 21.2 kg |
| Weight per kWp | 53.8 kg/kWp | 49.3 kg/kWp |
| Product warranty | 12 yrs | 25 yrs |
| Performance warranty | 30 yrs | 25 yrs |
| Annual degradation | 0.40 %/yr | 0.33 %/yr |
| Cell technology | TOPCon | N-type |
| Cell type | Monocrystalline | Monocrystalline |
| Cell count | 96 | 108 |
| Bifacial | Yes | No |


## Thirty-year yield

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

Same temp coeff. for both panels (-0.290 %/°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, NT12R/48GDF-455W:** 15,266 kWh
- **Cumulative output, Q.TRON BLK M-G2+ 430:** 14,507 kWh
- **Gap:** 759 kWh


## Output when hot


| Condition | Cell temperature | NT12R/48GDF-455W | Q.TRON BLK M-G2+ 430 | Retained |
| --- | --- | --- | --- | --- |
| Standard test conditions | 25 °C | 455 W | 430 W | 100.0% of rated power |
| Cool, bright day | 40 °C | 435 W | 411 W | 95.7% of rated power |
| Typical summer roof | 55 °C | 415 W | 393 W | 91.3% of rated power |
| Hot roof | 70 °C | 396 W | 374 W | 87.0% of rated power |


## Against the whole database


| Measure | NT12R/48GDF-455W | Q.TRON BLK M-G2+ 430 | Out of | Note |
| --- | --- | --- | --- | --- |
| Efficiency | #3,073 | #6,517 | 14,005 | NT12R/48GDF-455W leads by 3,444 places |
| Power density | #2,888 | #6,481 | 14,005 | NT12R/48GDF-455W leads by 3,593 places |
| Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database |
| Weight | #7,897 | #2,855 | 14,005 | Q.TRON BLK M-G2+ 430 leads by 5,042 places |
| Warranty | #21 | #9,798 | 14,005 | NT12R/48GDF-455W leads by 9,777 places |
| Overall | #8,644 | #8,637 | 14,005 | Q.TRON BLK M-G2+ 430 leads by 7 places |


## Questions


### Which panel is better: GCL NT12R/48GDF-455W or Q-Cells Q.TRON BLK M-G2+ 430?

According to our database: **GCL NT12R/48GDF-**455 W**** has higher module efficiency (**22.77%** vs **22.00%**). See the full spec comparison and 30-year energy simulation above for a complete picture.


### What is the efficiency of GCL NT12R/48GDF-455W and Q-Cells Q.TRON BLK M-G2+ 430?

**GCL NT12R/48GDF-**455 W**** has a module efficiency of **22.77%**, while **Q-Cells Q.TRON BLK M-G2+ 430** is **22.00%**. Higher efficiency means more electricity from the same roof area - useful when space is limited.


### What cell technology does GCL NT12R/48GDF-455W use vs Q-Cells Q.TRON BLK M-G2+ 430?

**GCL NT12R/48GDF-**455 W**** uses **TOPCon** cells; **Q-Cells Q.TRON BLK M-G2+ 430** uses **N-type**. 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 GCL NT12R/48GDF-455W and Q-Cells Q.TRON BLK M-G2+ 430?

**GCL NT12R/48GDF-**455 W**** has a **30 years** power warranty; **Q-Cells Q.TRON BLK M-G2+ 430** 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.


### Are GCL NT12R/48GDF-455W and Q-Cells Q.TRON BLK M-G2+ 430 bifacial panels?

**GCL NT12R/48GDF-**455 W**** is bifacial (captures light from both faces); **Q-Cells Q.TRON BLK M-G2+ 430** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.


## Related comparisons

- [GCL NT12R/48GDF-455W vs GCL GCL-NT12R/54GDF-530](https://comparepv.com/compare/gcl-nt12r-48gdf-455w/gcl-gcl-nt12r-54gdf-530) - 10 differences, the largest is module efficiency
- [GCL NT12R/48GDF-455W vs GCL NT12R/54GDF-525W](https://comparepv.com/compare/gcl-nt12r-48gdf-455w/gcl-nt12r-54gdf-525w) - 9 differences, the largest is module efficiency
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- [GCL NT12R/48GDF-455W vs GCL NT12R/54GDF-520W](https://comparepv.com/compare/gcl-nt12r-48gdf-455w/gcl-nt12r-54gdf-520w) - 9 differences, the largest is rated power
- [GCL NT12R/48GDF-455W vs GCL GCL-NT12R/54GDF-520](https://comparepv.com/compare/gcl-nt12r-48gdf-455w/gcl-gcl-nt12r-54gdf-520) - 9 differences, the largest is rated power


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Source: https://comparepv.com/compare/gcl-nt12r-48gdf-455w/hanwha-q-cells-q-tron-blk-m-g2-430

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.