--- title: "Mysolar USA MS685N-DHBG vs Mysolar USA MS720N-HJTGB - Solar Panel Comparison | ComparePV" description: "Compare Mysolar USA MS685N-DHBG vs Mysolar USA MS720N-HJTGB side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/mysolar-usa-ms685n-dhbg/mysolar-usa-ms720n-hjtgb" updated: 2026-09-11 --- # Mysolar USA MS685N-DHBG vs Mysolar USA MS720N-HJTGB MS720N-HJTGB leads on the differences that matter The largest is module efficiency: 1.12 pp more efficient. 8 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 | [Mysolar USA MS685N-DHBG](https://comparepv.com/panel/mysolar-usa-ms685n-dhbg) | [Mysolar USA MS720N-HJTGB](https://comparepv.com/panel/mysolar-usa-ms720n-hjtgb) | | Manufacturer | Mysolar USA | Mysolar USA | | Power | 685 Wp | 720 Wp | | Efficiency | 22.05 % | 23.17 % | | Technology | TOPCon | HJT | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | MS685N-DHBG | MS720N-HJTGB | Difference | | --- | --- | --- | --- | | Module efficiency | 22.05 % | 23.17 % | +1.12 pp for MS720N-HJTGB | | Temperature coefficient | -0.300 %/°C | -0.260 %/°C | +0.040 %/°C for MS720N-HJTGB | | Power density | 220.5 Wp/m² | 231.8 Wp/m² | +11.3 Wp/m² for MS720N-HJTGB | | Rated power | 685 Wp | 720 Wp | +35 W for MS720N-HJTGB | | Product warranty | 25 yrs | 30 yrs | +5 yrs for MS720N-HJTGB | | Open-circuit voltage | 48.13 V | 50.75 V | 2.62 V apart | | Cell technology | TOPCon | HJT | TOPCon vs HJT | | Weight per kWp | 56.2 kg/kWp | 53.9 kg/kWp | -2.3 kg/kWp for MS720N-HJTGB | | Voltage at max power | 40.12 V | 42.70 V | 2.58 V apart | | Dimensions | 2384x1303x33 mm | 2384x1303x35 mm | 2384x1303x33 mm vs 2384x1303x35 mm | ## Every compared parameter | Parameter | MS685N-DHBG | MS720N-HJTGB | | --- | --- | --- | | Rated power | 685 Wp | 720 Wp | | Module efficiency | 22.05 % | 23.17 % | | Power density | 220.5 Wp/m² | 231.8 Wp/m² | | Open-circuit voltage | 48.13 V | 50.75 V | | Voltage at max power | 40.12 V | 42.70 V | | Short-circuit current | 17.84 A | 17.67 A | | Current at max power | 17.09 A | 16.87 A | | Temperature coefficient | -0.300 %/°C | -0.260 %/°C | | Dimensions | 2384x1303x33 mm | 2384x1303x35 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 38.5 kg | 38.8 kg | | Weight per kWp | 56.2 kg/kWp | 53.9 kg/kWp | | Product warranty | 25 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | - | 0.25 %/yr | | Cell technology | TOPCon | HJT | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 132 | | Bifacial | Yes | Yes | ## Thirty-year yield A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year - **Cumulative output, MS685N-DHBG:** 22,983 kWh - **Cumulative output, MS720N-HJTGB:** 24,157 kWh - **Gap:** 1,174 kWh ## Output when hot | Condition | Cell temperature | MS685N-DHBG | MS720N-HJTGB | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 685 W | 720 W | 100.0% of rated power | | Cool, bright day | 40 °C | 654 W | 692 W | 95.5% of rated power | | Typical summer roof | 55 °C | 623 W | 664 W | 91.0% of rated power | | Hot roof | 70 °C | 593 W | 636 W | 86.5% of rated power | ## Against the whole database | Measure | MS685N-DHBG | MS720N-HJTGB | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #6,233 | #1,473 | 14,005 | MS720N-HJTGB leads by 4,760 places | | Power density | #6,208 | #1,347 | 14,005 | MS720N-HJTGB leads by 4,861 places | | Heat behaviour | #6,093 | #511 | 14,005 | MS720N-HJTGB leads by 5,582 places | | Weight | #10,487 | #8,017 | 14,005 | MS720N-HJTGB leads by 2,470 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #497 | #27 | 14,005 | MS720N-HJTGB leads by 470 places | ## Questions ### Which panel is better: Mysolar USA MS685N-DHBG or Mysolar USA MS720N-HJTGB? According to our database: **Mysolar USA MS720N-HJTGB** has higher module efficiency (**23.17%** vs **22.05%**); **Mysolar USA MS720N-HJTGB** tolerates heat better (temp coeff **-0.260%/°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 Mysolar USA MS685N-DHBG and Mysolar USA MS720N-HJTGB? **Mysolar USA MS685N-DHBG** has a module efficiency of **22.05%**, while **Mysolar USA MS720N-HJTGB** is **23.17%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Mysolar USA MS685N-DHBG use vs Mysolar USA MS720N-HJTGB? **Mysolar USA MS685N-DHBG** uses **TOPCon** cells; **Mysolar USA MS720N-HJTGB** uses **HJT**. 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 Mysolar USA MS685N-DHBG and Mysolar USA MS720N-HJTGB? **Mysolar USA MS685N-DHBG** has a **30 years** power warranty; **Mysolar USA MS720N-HJTGB** 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 Mysolar USA MS685N-DHBG and Mysolar USA MS720N-HJTGB bifacial panels? Both **Mysolar USA MS685N-DHBG** and **Mysolar USA MS720N-HJTGB** 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 - [Mysolar USA MS685N-DHBG vs Mysolar USA MS700N-DHBG](https://comparepv.com/compare/mysolar-usa-ms685n-dhbg/mysolar-usa-ms700n-dhbg) - 3 differences, the largest is module efficiency - [Mysolar USA MS685N-DHBG vs Mysolar USA MS695N-DHBG](https://comparepv.com/compare/mysolar-usa-ms685n-dhbg/mysolar-usa-ms695n-dhbg) - 3 differences, the largest is module efficiency - [Mysolar USA MS685N-DHBG vs Mysolar USA MS690N-DHBG](https://comparepv.com/compare/mysolar-usa-ms685n-dhbg/mysolar-usa-ms690n-dhbg) - The same specification on paper - [Mysolar USA MS685N-DHBG vs Mysolar USA MS680N-DHBG](https://comparepv.com/compare/mysolar-usa-ms685n-dhbg/mysolar-usa-ms680n-dhbg) - The same specification on paper - [Mysolar USA MS720N-HJTGB vs Mysolar USA MS715N-HJTGB](https://comparepv.com/compare/mysolar-usa-ms720n-hjtgb/mysolar-usa-ms715n-hjtgb) - The same specification on paper - [Mysolar USA MS720N-HJTGB vs Mysolar USA MS710N-HJTGB](https://comparepv.com/compare/mysolar-usa-ms720n-hjtgb/mysolar-usa-ms710n-hjtgb) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/mysolar-usa-ms685n-dhbg/mysolar-usa-ms720n-hjtgb 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.