--- title: "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) - 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.H1+/AC (Power class 440W) 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-america-inc-q-tron-blk-m-g2-h1-ac-power-class-440w" updated: 2026-09-11 --- # 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) H1+/AC (Power class 440W) leads on the differences that matter The largest is module efficiency: 0.20 pp more efficient. 18 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.H1+/AC (Power class 440W)](https://comparepv.com/panel/hanwha-q-cells-america-inc-q-tron-blk-m-g2-h1-ac-power-class-440w) | | 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 | D1+/AC (Power class 435W) | H1+/AC (Power class 440W) | Difference | | --- | --- | --- | --- | | Module efficiency | 22.30 % | 22.50 % | +0.20 pp for H1+/AC (Power class 440W) | ## Every compared parameter | Parameter | D1+/AC (Power class 435W) | H1+/AC (Power class 440W) | | --- | --- | --- | | 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 | -0.300 %/°C | | Dimensions | 1722x1134x40 mm | 1722x1134x40 mm | | Module area | 1.953 m² | 1.953 m² | | Weight | 22.9 kg | 22.9 kg | | Weight per kWp | 52.8 kg/kWp | 52.2 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 | 216 | | 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 (-0.300 %/°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, D1+/AC (Power class 435W):** 14,676 kWh - **Cumulative output, H1+/AC (Power class 440W):** 14,844 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | D1+/AC (Power class 435W) | H1+/AC (Power class 440W) | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 435 W | 440 W | 100.0% of rated power | | Cool, bright day | 40 °C | 415 W | 420 W | 95.5% of rated power | | Typical summer roof | 55 °C | 396 W | 400 W | 91.0% of rated power | | Hot roof | 70 °C | 376 W | 381 W | 86.5% of rated power | ## Against the whole database | Measure | D1+/AC (Power class 435W) | H1+/AC (Power class 440W) | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #5,100 | #4,222 | 14,005 | H1+/AC (Power class 440W) leads by 878 places | | Power density | #5,150 | #4,099 | 14,005 | H1+/AC (Power class 440W) leads by 1,051 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #6,443 | #5,625 | 14,005 | H1+/AC (Power class 440W) leads by 818 places | | Warranty | #9,798 | #9,798 | 14,005 | Tied - the same position in the database | | Overall | #8,167 | #7,682 | 14,005 | H1+/AC (Power class 440W) leads by 485 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.H1+/AC (Power class 440W)? According to our database: **Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class **440 W**)** has higher module efficiency (**22.50%** vs **22.30%**). 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.H1+/AC (Power class 440W)? **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.H1+/AC (Power class **440 W**)** 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.H1+/AC (Power class 440W)? **Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class **435 W**)** uses **N-type** cells; **Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class **440 W**)** 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.H1+/AC (Power class 440W)? **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.H1+/AC (Power class **440 W**)** 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.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.D1+/AC (Power class 435W) vs Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 675](https://comparepv.com/compare/hanwha-q-cells-america-inc-q-tron-blk-m-g2-d1-ac-power-class-435w/q-cells-q-peak-duo-ml-g12s-3-bfg-675) - 17 differences, the largest is temperature coefficient - [Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W) vs Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670](https://comparepv.com/compare/hanwha-q-cells-america-inc-q-tron-blk-m-g2-d1-ac-power-class-435w/q-cells-q-peak-duo-ml-g12s-3-bfg-670) - 17 differences, the largest is temperature coefficient --- Source: 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 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.