--- title: "Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W) vs Q-Cells Q.TRON BLK M-G2+ 440 - Solar Panel Comparison | ComparePV" description: "Compare Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W) vs Q-Cells Q.TRON BLK M-G2+ 440 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-america-inc-q-tron-blk-m-g2-d1-ac-power-class-435w/hanwha-q-cells-q-tron-blk-m-g2-440" updated: 2026-09-11 --- # Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W) vs Q-Cells Q.TRON BLK M-G2+ 440 G2+ 440 leads on the differences that matter The largest is weight per kwp: 4.6 kg/kWp lighter. 13 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W)](https://comparepv.com/panel/hanwha-q-cells-america-inc-q-tron-blk-m-g2-d1-ac-power-class-435w) | [Q-Cells Q.TRON BLK M-G2+ 440](https://comparepv.com/panel/hanwha-q-cells-q-tron-blk-m-g2-440) | | Manufacturer | Q-Cells | Q-Cells | | Power | 435 Wp | 440 Wp | | Efficiency | 22.30 % | 22.50 % | | Technology | N-type | N-type | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | G2.D1+/AC (Power class 435W) | G2+ 440 | Difference | | --- | --- | --- | --- | | Weight per kWp | 52.8 kg/kWp | 48.2 kg/kWp | -4.6 kg/kWp for G2+ 440 | | Weight | 22.9 kg | 21.2 kg | -1.8 kg for G2+ 440 | | Temperature coefficient | -0.300 %/°C | -0.290 %/°C | +0.010 %/°C for G2+ 440 | | Module efficiency | 22.30 % | 22.50 % | +0.20 pp for G2+ 440 | | Cell count | 216 | 108 | 108 cells apart | | Dimensions | 1722x1134x40 mm | 1722x1134x30 mm | 1722x1134x40 mm vs 1722x1134x30 mm | ## Every compared parameter | Parameter | G2.D1+/AC (Power class 435W) | G2+ 440 | | --- | --- | --- | | Rated power | 435 Wp | 440 Wp | | Module efficiency | 22.30 % | 22.50 % | | Power density | 222.8 Wp/m² | 225.3 Wp/m² | | Open-circuit voltage | 39.60 V | 39.88 V | | Voltage at max power | 33.14 V | 33.33 V | | Short-circuit current | 13.82 A | 13.90 A | | Current at max power | 13.13 A | 13.20 A | | Temperature coefficient | -0.300 %/°C | -0.290 %/°C | | Dimensions | 1722x1134x40 mm | 1722x1134x30 mm | | Module area | 1.953 m² | 1.953 m² | | Weight | 22.9 kg | 21.2 kg | | Weight per kWp | 52.8 kg/kWp | 48.2 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 | 216 | 108 | | Bifacial | No | No | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year - **Cumulative output, G2.D1+/AC (Power class 435W):** 14,676 kWh - **Cumulative output, G2+ 440:** 14,844 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | G2.D1+/AC (Power class 435W) | G2+ 440 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 435 W | 440 W | 100.0% of rated power | | Cool, bright day | 40 °C | 415 W | 421 W | 95.5% of rated power | | Typical summer roof | 55 °C | 396 W | 402 W | 91.0% of rated power | | Hot roof | 70 °C | 376 W | 383 W | 86.5% of rated power | ## Against the whole database | Measure | G2.D1+/AC (Power class 435W) | G2+ 440 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #5,100 | #4,222 | 14,005 | G2+ 440 leads by 878 places | | Power density | #5,150 | #4,099 | 14,005 | G2+ 440 leads by 1,051 places | | Heat behaviour | #6,093 | #2,165 | 14,005 | G2+ 440 leads by 3,928 places | | Weight | #6,443 | #2,087 | 14,005 | G2+ 440 leads by 4,356 places | | Warranty | #9,798 | #9,798 | 14,005 | Tied - the same position in the database | | Overall | #8,167 | #7,585 | 14,005 | G2+ 440 leads by 582 places | ## Questions ### Which panel is better: Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W) or Q-Cells Q.TRON BLK M-G2+ 440? According to our database: **Q-Cells Q.TRON BLK M-G2+ 440** has higher module efficiency (**22.50%** vs **22.30%**); **Q-Cells Q.TRON BLK M-G2+ 440** tolerates heat better (temp coeff **-0.290%/°C** vs **-0.300%/°C**). 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.D1+/AC (Power class 435W) and Q-Cells Q.TRON BLK M-G2+ 440? **Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class **435 W**)** has a module efficiency of **22.30%**, while **Q-Cells Q.TRON BLK M-G2+ 440** is **22.50%**. 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.D1+/AC (Power class 435W) use vs Q-Cells Q.TRON BLK M-G2+ 440? **Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class **435 W**)** uses **N-type** cells; **Q-Cells Q.TRON BLK M-G2+ 440** 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.D1+/AC (Power class 435W) and Q-Cells Q.TRON BLK M-G2+ 440? **Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class **435 W**)** has a **25 years** power warranty; **Q-Cells Q.TRON BLK M-G2+ 440** 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.D1+/AC (Power class 435W) vs Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)](https://comparepv.com/compare/hanwha-q-cells-america-inc-q-tron-blk-m-g2-d1-ac-power-class-435w/hanwha-q-cells-america-inc-q-tron-blk-m-g2-h1-ac-power-class-440w) - One difference: module efficiency - [Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W) vs Q-Cells Q.TRON BLK M-G2.C1+/AC (Power class 430W)](https://comparepv.com/compare/hanwha-q-cells-america-inc-q-tron-blk-m-g2-d1-ac-power-class-435w/hanwha-q-cells-america-inc-q-tron-blk-m-g2-c1-ac-power-class-430w) - One difference: module efficiency - [Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W) vs Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425W)](https://comparepv.com/compare/hanwha-q-cells-america-inc-q-tron-blk-m-g2-d1-ac-power-class-435w/hanwha-q-cells-america-inc-q-tron-blk-m-g2-e1-ac-power-class-425w) - 3 differences, the largest is module efficiency - [Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W) vs Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W)](https://comparepv.com/compare/hanwha-q-cells-america-inc-q-tron-blk-m-g2-d1-ac-power-class-435w/hanwha-q-cells-america-inc-q-tron-blk-m-g2-1-ac-power-class-420w) - 3 differences, the largest is module efficiency - [Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W) vs Q-Cells Q.TRON BLK M-G2+/AC (Power class 415W)](https://comparepv.com/compare/hanwha-q-cells-america-inc-q-tron-blk-m-g2-d1-ac-power-class-435w/hanwha-q-cells-america-inc-q-tron-blk-m-g2-ac-power-class-415w) - 5 differences, the largest is module efficiency - [Q-Cells Q.TRON BLK M-G2+ 440 vs Q-Cells Q.TRON BLK M-G2+ 435](https://comparepv.com/compare/hanwha-q-cells-q-tron-blk-m-g2-440/hanwha-q-cells-q-tron-blk-m-g2-435) - One difference: module efficiency --- Source: https://comparepv.com/compare/hanwha-q-cells-america-inc-q-tron-blk-m-g2-d1-ac-power-class-435w/hanwha-q-cells-q-tron-blk-m-g2-440 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.