--- title: "DAS Solar DAS-DH108ND-440 vs DAS Solar DAS-DH108ND-445 - Solar Panel Comparison | ComparePV" description: "Compare DAS Solar DAS-DH108ND-440 vs DAS Solar DAS-DH108ND-445 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-dh108nd-440/das-solar-das-dh108nd-445" updated: 2026-09-11 --- # DAS Solar DAS-DH108ND-440 vs DAS Solar DAS-DH108ND-445 445 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 | [DAS Solar DAS-DH108ND-440](https://comparepv.com/panel/das-solar-das-dh108nd-440) | [DAS Solar DAS-DH108ND-445](https://comparepv.com/panel/das-solar-das-dh108nd-445) | | Manufacturer | DAS Solar | DAS Solar | | Power | 440 Wp | 445 Wp | | Efficiency | 21.60 % | 21.80 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 440 | 445 | Difference | | --- | --- | --- | --- | | Module efficiency | 21.60 % | 21.80 % | +0.20 pp for 445 | ## Every compared parameter | Parameter | 440 | 445 | | --- | --- | --- | | Rated power | 440 Wp | 445 Wp | | Module efficiency | 21.60 % | 21.80 % | | Power density | 215.6 Wp/m² | 218.0 Wp/m² | | Open-circuit voltage | 38.82 V | 39.00 V | | Voltage at max power | 32.10 V | 32.28 V | | Short-circuit current | 14.58 A | 14.63 A | | Current at max power | 13.71 A | 13.79 A | | Temperature coefficient | -0.280 %/°C | -0.280 %/°C | | Dimensions | 1800x1134x30 mm | 1800x1134x30 mm | | Module area | 2.041 m² | 2.041 m² | | Weight | 21.7 kg | 21.7 kg | | Weight per kWp | 49.3 kg/kWp | 48.8 kg/kWp | | Product warranty | 25 yrs | 25 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 | 108 | 108 | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.280 %/°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, 440:** 14,763 kWh - **Cumulative output, 445:** 14,931 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | 440 | 445 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 440 W | 445 W | 100.0% of rated power | | Cool, bright day | 40 °C | 422 W | 426 W | 95.8% of rated power | | Typical summer roof | 55 °C | 403 W | 408 W | 91.6% of rated power | | Hot roof | 70 °C | 385 W | 389 W | 87.4% of rated power | ## Against the whole database | Measure | 440 | 445 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #7,652 | #7,022 | 14,005 | 445 leads by 630 places | | Power density | #7,721 | #7,007 | 14,005 | 445 leads by 714 places | | Heat behaviour | #1,309 | #1,309 | 14,005 | Tied - the same position in the database | | Weight | #2,864 | #2,451 | 14,005 | 445 leads by 413 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #7,621 | #7,173 | 14,005 | 445 leads by 448 places | ## Questions ### Which panel is better: DAS Solar DAS-DH108ND-440 or DAS Solar DAS-DH108ND-445? According to our database: **DAS Solar DAS-DH108ND-445** has higher module efficiency (**21.80%** vs **21.60%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of DAS Solar DAS-DH108ND-440 and DAS Solar DAS-DH108ND-445? **DAS Solar DAS-DH108ND-440** has a module efficiency of **21.60%**, while **DAS Solar DAS-DH108ND-445** is **21.80%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does DAS Solar DAS-DH108ND-440 use vs DAS Solar DAS-DH108ND-445? **DAS Solar DAS-DH108ND-440** uses **TOPCon** cells; **DAS Solar DAS-DH108ND-445** 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-DH108ND-440 and DAS Solar DAS-DH108ND-445? **DAS Solar DAS-DH108ND-440** has a **30 years** power warranty; **DAS Solar DAS-DH108ND-445** 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-DH108ND-440 and DAS Solar DAS-DH108ND-445 bifacial panels? Both **DAS Solar DAS-DH108ND-440** and **DAS Solar DAS-DH108ND-445** 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-DH108ND-440 vs DAS Solar DAS-DH108ND-460](https://comparepv.com/compare/das-solar-das-dh108nd-440/das-solar-das-dh108nd-460) - 4 differences, the largest is module efficiency - [DAS Solar DAS-DH108ND-440 vs DAS Solar DAS-DH108ND-455](https://comparepv.com/compare/das-solar-das-dh108nd-440/das-solar-das-dh108nd-455) - 3 differences, the largest is module efficiency - [DAS Solar DAS-DH108ND-440 vs DAS Solar DAS-DH108ND-450](https://comparepv.com/compare/das-solar-das-dh108nd-440/das-solar-das-dh108nd-450) - 3 differences, the largest is module efficiency - [DAS Solar DAS-DH108ND-440 vs DAS Solar DAS-DH108NA-445W](https://comparepv.com/compare/das-solar-das-dh108nd-440/das-solar-das-dh108na-445w) - 10 differences, the largest is module efficiency - [DAS Solar DAS-DH108ND-440 vs DAS Solar DAS-DH108NA-440W](https://comparepv.com/compare/das-solar-das-dh108nd-440/das-solar-das-dh108na-440w) - 10 differences, the largest is module efficiency - [DAS Solar DAS-DH108ND-440 vs DAS Solar DAS-DH108NA-435](https://comparepv.com/compare/das-solar-das-dh108nd-440/das-solar-das-dh108na-435) - 9 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/das-solar-das-dh108nd-440/das-solar-das-dh108nd-445 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.