--- title: "Q-Cells Q.TRON BLK M-G2+ 425 vs Q-Cells Q.TRON BLK M-G2+ 435 - Solar Panel Comparison | ComparePV" description: "Compare Q-Cells Q.TRON BLK M-G2+ 425 vs Q-Cells Q.TRON BLK M-G2+ 435 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/hanwha-q-cells-q-tron-blk-m-g2-425/hanwha-q-cells-q-tron-blk-m-g2-435" updated: 2026-09-11 --- # Q-Cells Q.TRON BLK M-G2+ 425 vs Q-Cells Q.TRON BLK M-G2+ 435 435 leads on the differences that matter The largest is module efficiency: 0.50 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Q-Cells Q.TRON BLK M-G2+ 425](https://comparepv.com/panel/hanwha-q-cells-q-tron-blk-m-g2-425) | [Q-Cells Q.TRON BLK M-G2+ 435](https://comparepv.com/panel/hanwha-q-cells-q-tron-blk-m-g2-435) | | Manufacturer | Q-Cells | Q-Cells | | Power | 425 Wp | 435 Wp | | Efficiency | 21.80 % | 22.30 % | | Technology | N-type | N-type | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 425 | 435 | Difference | | --- | --- | --- | --- | | Module efficiency | 21.80 % | 22.30 % | +0.50 pp for 435 | | Power density | 217.6 Wp/m² | 222.8 Wp/m² | +5.1 Wp/m² for 435 | | Rated power | 425 Wp | 435 Wp | +10 W for 435 | ## Every compared parameter | Parameter | 425 | 435 | | --- | --- | --- | | Rated power | 425 Wp | 435 Wp | | Module efficiency | 21.80 % | 22.30 % | | Power density | 217.6 Wp/m² | 222.8 Wp/m² | | Open-circuit voltage | 39.03 V | 39.60 V | | Voltage at max power | 32.74 V | 33.14 V | | Short-circuit current | 13.66 A | 13.82 A | | Current at max power | 12.98 A | 13.13 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 1722x1134x30 mm | 1722x1134x30 mm | | Module area | 1.953 m² | 1.953 m² | | Weight | 21.2 kg | 21.2 kg | | Weight per kWp | 49.9 kg/kWp | 48.7 kg/kWp | | Product warranty | 25 yrs | 25 yrs | | Performance warranty | 25 yrs | 25 yrs | | Annual degradation | 0.33 %/yr | 0.33 %/yr | | Cell technology | N-type | N-type | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 108 | | 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 (-0.290 %/°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, 425:** 14,338 kWh - **Cumulative output, 435:** 14,676 kWh - **Gap:** 338 kWh ## Output when hot | Condition | Cell temperature | 425 | 435 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 425 W | 435 W | 100.0% of rated power | | Cool, bright day | 40 °C | 407 W | 416 W | 95.7% of rated power | | Typical summer roof | 55 °C | 388 W | 397 W | 91.3% of rated power | | Hot roof | 70 °C | 370 W | 378 W | 87.0% of rated power | ## Against the whole database | Measure | 425 | 435 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #7,022 | #5,100 | 14,005 | 435 leads by 1,922 places | | Power density | #7,172 | #5,150 | 14,005 | 435 leads by 2,022 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #3,266 | #2,435 | 14,005 | 435 leads by 831 places | | Warranty | #9,798 | #9,798 | 14,005 | Tied - the same position in the database | | Overall | #9,034 | #8,076 | 14,005 | 435 leads by 958 places | ## Questions ### Which panel is better: Q-Cells Q.TRON BLK M-G2+ 425 or Q-Cells Q.TRON BLK M-G2+ 435? According to our database: **Q-Cells Q.TRON BLK M-G2+ 435** has higher module efficiency (**22.30%** vs **21.80%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Q-Cells Q.TRON BLK M-G2+ 425 and Q-Cells Q.TRON BLK M-G2+ 435? **Q-Cells Q.TRON BLK M-G2+ 425** has a module efficiency of **21.80%**, while **Q-Cells Q.TRON BLK M-G2+ 435** is **22.30%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Q-Cells Q.TRON BLK M-G2+ 425 use vs Q-Cells Q.TRON BLK M-G2+ 435? **Q-Cells Q.TRON BLK M-G2+ 425** uses **N-type** cells; **Q-Cells Q.TRON BLK M-G2+ 435** 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 Q-Cells Q.TRON BLK M-G2+ 425 and Q-Cells Q.TRON BLK M-G2+ 435? **Q-Cells Q.TRON BLK M-G2+ 425** has a **25 years** power warranty; **Q-Cells Q.TRON BLK M-G2+ 435** 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 - [Q-Cells Q.TRON BLK M-G2+ 425 vs Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)](https://comparepv.com/compare/hanwha-q-cells-q-tron-blk-m-g2-425/hanwha-q-cells-america-inc-q-tron-blk-m-g2-h1-ac-power-class-440w) - 8 differences, the largest is module efficiency - [Q-Cells Q.TRON BLK M-G2+ 425 vs Q-Cells Q.TRON BLK M-G2+ 440](https://comparepv.com/compare/hanwha-q-cells-q-tron-blk-m-g2-425/hanwha-q-cells-q-tron-blk-m-g2-440) - 3 differences, the largest is module efficiency - [Q-Cells Q.TRON BLK M-G2+ 425 vs Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W)](https://comparepv.com/compare/hanwha-q-cells-q-tron-blk-m-g2-425/hanwha-q-cells-america-inc-q-tron-blk-m-g2-d1-ac-power-class-435w) - 8 differences, the largest is module efficiency - [Q-Cells Q.TRON BLK M-G2+ 425 vs Q-Cells Q.TRON BLK M-G2.C1+/AC (Power class 430W)](https://comparepv.com/compare/hanwha-q-cells-q-tron-blk-m-g2-425/hanwha-q-cells-america-inc-q-tron-blk-m-g2-c1-ac-power-class-430w) - 6 differences, the largest is weight - [Q-Cells Q.TRON BLK M-G2+ 425 vs Q-Cells Q.TRON BLK M-G2+ 430](https://comparepv.com/compare/hanwha-q-cells-q-tron-blk-m-g2-425/hanwha-q-cells-q-tron-blk-m-g2-430) - One difference: module efficiency - [Q-Cells Q.TRON BLK M-G2+ 425 vs Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425W)](https://comparepv.com/compare/hanwha-q-cells-q-tron-blk-m-g2-425/hanwha-q-cells-america-inc-q-tron-blk-m-g2-e1-ac-power-class-425w) - 5 differences, the largest is weight per kwp --- Source: https://comparepv.com/compare/hanwha-q-cells-q-tron-blk-m-g2-425/hanwha-q-cells-q-tron-blk-m-g2-435 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.