--- title: "EGing PV EG-610NT60-HU/BF-DG vs EGing PV EG-685NT66-HU/BF-DG - Solar Panel Comparison | ComparePV" description: "Compare EGing PV EG-610NT60-HU/BF-DG vs EGing PV EG-685NT66-HU/BF-DG side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/eging-pv-eg-610nt60-hu-bf-dg/eging-pv-eg-685nt66-hu-bf-dg" updated: 2026-09-11 --- # EGing PV EG-610NT60-HU/BF-DG vs EGing PV EG-685NT66-HU/BF-DG 685NT66-HU/BF-DG leads on the differences that matter The largest is rated power: 75 W more power. 10 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [EGing PV EG-610NT60-HU/BF-DG](https://comparepv.com/panel/eging-pv-eg-610nt60-hu-bf-dg) | [EGing PV EG-685NT66-HU/BF-DG](https://comparepv.com/panel/eging-pv-eg-685nt66-hu-bf-dg) | | Manufacturer | EGing PV | EGing PV | | Power | 610 Wp | 685 Wp | | Efficiency | 21.55 % | 22.05 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 610NT60-HU/BF-DG | 685NT66-HU/BF-DG | Difference | | --- | --- | --- | --- | | Rated power | 610 Wp | 685 Wp | +75 W for 685NT66-HU/BF-DG | | Module efficiency | 21.55 % | 22.05 % | +0.50 pp for 685NT66-HU/BF-DG | | Weight | 35.0 kg | 38.3 kg | -3.3 kg for 610NT60-HU/BF-DG | | Open-circuit voltage | 42.83 V | 47.64 V | 4.81 V apart | | Module area | 2.830 m² | 3.106 m² | 0.276 m² apart | | Power density | 215.5 Wp/m² | 220.5 Wp/m² | +5.0 Wp/m² for 685NT66-HU/BF-DG | | Voltage at max power | 35.74 V | 39.85 V | 4.11 V apart | | Cell count | 120 | 132 | 12 cells apart | | Dimensions | 2172x1303x35 mm | 2384x1303x35 mm | 2172x1303x35 mm vs 2384x1303x35 mm | ## Every compared parameter | Parameter | 610NT60-HU/BF-DG | 685NT66-HU/BF-DG | | --- | --- | --- | | Rated power | 610 Wp | 685 Wp | | Module efficiency | 21.55 % | 22.05 % | | Power density | 215.5 Wp/m² | 220.5 Wp/m² | | Open-circuit voltage | 42.83 V | 47.64 V | | Voltage at max power | 35.74 V | 39.85 V | | Short-circuit current | 18.08 A | 18.22 A | | Current at max power | 17.07 A | 17.19 A | | Temperature coefficient | -0.300 %/°C | -0.300 %/°C | | Dimensions | 2172x1303x35 mm | 2384x1303x35 mm | | Module area | 2.830 m² | 3.106 m² | | Weight | 35.0 kg | 38.3 kg | | Weight per kWp | 57.4 kg/kWp | 55.9 kg/kWp | | Product warranty | 12 yrs | 12 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 | 132 | | 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 (-0.300 %/°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, 610NT60-HU/BF-DG:** 20,467 kWh - **Cumulative output, 685NT66-HU/BF-DG:** 22,983 kWh - **Gap:** 2,516 kWh ## Output when hot | Condition | Cell temperature | 610NT60-HU/BF-DG | 685NT66-HU/BF-DG | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 610 W | 685 W | 100.0% of rated power | | Cool, bright day | 40 °C | 583 W | 654 W | 95.5% of rated power | | Typical summer roof | 55 °C | 555 W | 623 W | 91.0% of rated power | | Hot roof | 70 °C | 528 W | 593 W | 86.5% of rated power | ## Against the whole database | Measure | 610NT60-HU/BF-DG | 685NT66-HU/BF-DG | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #7,784 | #6,233 | 14,005 | 685NT66-HU/BF-DG leads by 1,551 places | | Power density | #7,727 | #6,208 | 14,005 | 685NT66-HU/BF-DG leads by 1,519 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #11,191 | #10,276 | 14,005 | 685NT66-HU/BF-DG leads by 915 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #4,578 | #1,726 | 14,005 | 685NT66-HU/BF-DG leads by 2,852 places | ## Questions ### Which panel is better: EGing PV EG-610NT60-HU/BF-DG or EGing PV EG-685NT66-HU/BF-DG? According to our database: **EGing PV EG-685NT66-HU/BF-DG** has higher module efficiency (**22.05%** vs **21.55%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of EGing PV EG-610NT60-HU/BF-DG and EGing PV EG-685NT66-HU/BF-DG? **EGing PV EG-610NT60-HU/BF-DG** has a module efficiency of **21.55%**, while **EGing PV EG-685NT66-HU/BF-DG** is **22.05%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does EGing PV EG-610NT60-HU/BF-DG use vs EGing PV EG-685NT66-HU/BF-DG? **EGing PV EG-610NT60-HU/BF-DG** uses **TOPCon** cells; **EGing PV EG-685NT66-HU/BF-DG** 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 EGing PV EG-610NT60-HU/BF-DG and EGing PV EG-685NT66-HU/BF-DG? **EGing PV EG-610NT60-HU/BF-DG** has a **30 years** power warranty; **EGing PV EG-685NT66-HU/BF-DG** 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 EGing PV EG-610NT60-HU/BF-DG and EGing PV EG-685NT66-HU/BF-DG bifacial panels? Both **EGing PV EG-610NT60-HU/BF-DG** and **EGing PV EG-685NT66-HU/BF-DG** 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 - [EGing PV EG-610NT60-HU/BF-DG vs EGing PV EG-680NT66-HU/BF-DG](https://comparepv.com/compare/eging-pv-eg-610nt60-hu-bf-dg/eging-pv-eg-680nt66-hu-bf-dg) - 9 differences, the largest is rated power - [EGing PV EG-610NT60-HU/BF-DG vs EGing PV EG-675NT66-HU/BF-DG](https://comparepv.com/compare/eging-pv-eg-610nt60-hu-bf-dg/eging-pv-eg-675nt66-hu-bf-dg) - 7 differences, the largest is rated power - [EGing PV EG-610NT60-HU/BF-DG vs EGing PV EG-670NT66-HU/BF-DG](https://comparepv.com/compare/eging-pv-eg-610nt60-hu-bf-dg/eging-pv-eg-670nt66-hu-bf-dg) - 7 differences, the largest is rated power - [EGing PV EG-610NT60-HU/BF-DG vs EGing PV EG-665NT66-HU/BF-DG](https://comparepv.com/compare/eging-pv-eg-610nt60-hu-bf-dg/eging-pv-eg-665nt66-hu-bf-dg) - 7 differences, the largest is rated power - [EGing PV EG-610NT60-HU/BF-DG vs EGing PV EG-660NT66-HU/BF-DG](https://comparepv.com/compare/eging-pv-eg-610nt60-hu-bf-dg/eging-pv-eg-660nt66-hu-bf-dg) - 9 differences, the largest is rated power - [EGing PV EG-610NT60-HU/BF-DG vs EGing PV EG-620NT60-HU/BF-DG](https://comparepv.com/compare/eging-pv-eg-610nt60-hu-bf-dg/eging-pv-eg-620nt60-hu-bf-dg) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/eging-pv-eg-610nt60-hu-bf-dg/eging-pv-eg-685nt66-hu-bf-dg 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.