--- title: "DAS Solar DAS-DH120NA-490 vs DAS Solar DAS-DH120ND-515W - Solar Panel Comparison | ComparePV" description: "Compare DAS Solar DAS-DH120NA-490 vs DAS Solar DAS-DH120ND-515W side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/das-solar-das-dh120na-490/das-solar-das-dh120nd-515w" updated: 2026-09-11 --- # DAS Solar DAS-DH120NA-490 vs DAS Solar DAS-DH120ND-515W DH120ND-515W leads on the differences that matter The largest is rated power: 25 W more power. 11 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [DAS Solar DAS-DH120NA-490](https://comparepv.com/panel/das-solar-das-dh120na-490) | [DAS Solar DAS-DH120ND-515W](https://comparepv.com/panel/das-solar-das-dh120nd-515w) | | Manufacturer | DAS Solar | DAS Solar | | Power | 490 Wp | 515 Wp | | Efficiency | 22.70 % | 22.80 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | DH120NA-490 | DH120ND-515W | Difference | | --- | --- | --- | --- | | Rated power | 490 Wp | 515 Wp | +25 W for DH120ND-515W | | Temperature coefficient | -0.300 %/°C | -0.280 %/°C | +0.020 %/°C for DH120ND-515W | | Module area | 2.158 m² | 2.261 m² | 0.103 m² apart | | Weight | 26.0 kg | 27.5 kg | -1.5 kg for DH120NA-490 | | Short-circuit current | 14.01 A | 14.84 A | 0.83 A apart | | Dimensions | 1903x1134x30 mm | 1994x1134x30 mm | 1903x1134x30 mm vs 1994x1134x30 mm | | Current at max power | 13.23 A | 14.10 A | 0.87 A apart | ## Every compared parameter | Parameter | DH120NA-490 | DH120ND-515W | | --- | --- | --- | | Rated power | 490 Wp | 515 Wp | | Module efficiency | 22.70 % | 22.80 % | | Power density | 227.1 Wp/m² | 227.8 Wp/m² | | Open-circuit voltage | 43.39 V | 43.71 V | | Voltage at max power | 37.04 V | 36.53 V | | Short-circuit current | 14.01 A | 14.84 A | | Current at max power | 13.23 A | 14.10 A | | Temperature coefficient | -0.300 %/°C | -0.280 %/°C | | Dimensions | 1903x1134x30 mm | 1994x1134x30 mm | | Module area | 2.158 m² | 2.261 m² | | Weight | 26.0 kg | 27.5 kg | | Weight per kWp | 53.1 kg/kWp | 53.4 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 120 | - | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year - **Cumulative output, DH120NA-490:** 16,440 kWh - **Cumulative output, DH120ND-515W:** 17,279 kWh - **Gap:** 839 kWh ## Output when hot | Condition | Cell temperature | DH120NA-490 | DH120ND-515W | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 490 W | 515 W | 100.0% of rated power | | Cool, bright day | 40 °C | 468 W | 493 W | 95.5% of rated power | | Typical summer roof | 55 °C | 446 W | 472 W | 91.0% of rated power | | Hot roof | 70 °C | 424 W | 450 W | 86.5% of rated power | ## Against the whole database | Measure | DH120NA-490 | DH120ND-515W | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #3,307 | #2,714 | 14,005 | DH120ND-515W leads by 593 places | | Power density | #3,339 | #2,873 | 14,005 | DH120ND-515W leads by 466 places | | Heat behaviour | #6,093 | #1,309 | 14,005 | DH120ND-515W leads by 4,784 places | | Weight | #6,818 | #7,319 | 14,005 | DH120NA-490 leads by 501 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #6,727 | #5,665 | 14,005 | DH120ND-515W leads by 1,062 places | ## Questions ### Which panel is better: DAS Solar DAS-DH120NA-490 or DAS Solar DAS-DH120ND-515W? According to our database: **DAS Solar DAS-DH120ND-**515 W**** has higher module efficiency (**22.80%** vs **22.70%**); **DAS Solar DAS-DH120ND-**515 W**** tolerates heat better (temp coeff **-0.280%/°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 DAS Solar DAS-DH120NA-490 and DAS Solar DAS-DH120ND-515W? **DAS Solar DAS-DH120NA-490** has a module efficiency of **22.70%**, while **DAS Solar DAS-DH120ND-**515 W**** is **22.80%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does DAS Solar DAS-DH120NA-490 use vs DAS Solar DAS-DH120ND-515W? **DAS Solar DAS-DH120NA-490** uses **TOPCon** cells; **DAS Solar DAS-DH120ND-**515 W**** uses **TOPCon**. 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 DAS Solar DAS-DH120NA-490 and DAS Solar DAS-DH120ND-515W? **DAS Solar DAS-DH120NA-490** has a **30 years** power warranty; **DAS Solar DAS-DH120ND-**515 W**** 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 DAS Solar DAS-DH120NA-490 and DAS Solar DAS-DH120ND-515W bifacial panels? Both **DAS Solar DAS-DH120NA-490** and **DAS Solar DAS-DH120ND-**515 W**** 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 - [DAS Solar DAS-DH120NA-490 vs DAS Solar DAS-DH120ND-510W](https://comparepv.com/compare/das-solar-das-dh120na-490/das-solar-das-dh120nd-510w) - 7 differences, the largest is temperature coefficient - [DAS Solar DAS-DH120NA-490 vs DAS Solar DAS-DH120ND-505W](https://comparepv.com/compare/das-solar-das-dh120na-490/das-solar-das-dh120nd-505w) - 9 differences, the largest is temperature coefficient - [DAS Solar DAS-DH120NA-490 vs DAS Solar DAS-DH120ND-500W](https://comparepv.com/compare/das-solar-das-dh120na-490/das-solar-das-dh120nd-500w) - 10 differences, the largest is module efficiency - [DAS Solar DAS-DH120NA-490 vs DAS Solar DAS-DH120ND-495W](https://comparepv.com/compare/das-solar-das-dh120na-490/das-solar-das-dh120nd-495w) - 10 differences, the largest is module efficiency - [DAS Solar DAS-DH120NA-490 vs DAS Solar DAS-DH120ND-490W](https://comparepv.com/compare/das-solar-das-dh120na-490/das-solar-das-dh120nd-490w) - 10 differences, the largest is module efficiency - [DAS Solar DAS-DH120NA-490 vs DAS Solar DAS-DH120NA-485](https://comparepv.com/compare/das-solar-das-dh120na-490/das-solar-das-dh120na-485) - One difference: module efficiency --- Source: https://comparepv.com/compare/das-solar-das-dh120na-490/das-solar-das-dh120nd-515w 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.