--- title: "Gamko New Energy GKA210N132-705W (series) vs Gamko New Energy GKA210N132-745 - Solar Panel Comparison | ComparePV" description: "Compare Gamko New Energy GKA210N132-705W (series) vs Gamko New Energy GKA210N132-745 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/gamko-new-energy-gka210n132-705w-series/gamko-new-energy-gka210n132-745" image: "https://comparepv.com/og/compare/panels/gamko-new-energy-gka210n132-705w-series/gamko-new-energy-gka210n132-745.png" updated: 2026-09-11 --- # Gamko New Energy GKA210N132-705W (series) vs Gamko New Energy GKA210N132-745 745 leads on the differences that matter The largest is module efficiency: 1.28 pp more efficient. 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 | [Gamko New Energy GKA210N132-705W (series)](https://comparepv.com/panel/gamko-new-energy-gka210n132-705w-series) | [Gamko New Energy GKA210N132-745](https://comparepv.com/panel/gamko-new-energy-gka210n132-745) | | Manufacturer | Gamko New Energy | Gamko New Energy | | Power | 705 Wp | 745 Wp | | Efficiency | 22.70 % | 23.98 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 705W (series) | 745 | Difference | | --- | --- | --- | --- | | Module efficiency | 22.70 % | 23.98 % | +1.28 pp for 745 | | Rated power | 705 Wp | 745 Wp | +40 W for 745 | | Power density | 227.0 Wp/m² | 239.8 Wp/m² | +12.9 Wp/m² for 745 | | Open-circuit voltage | 46.03 V | 48.17 V | 2.14 V apart | | Weight per kWp | 45.4 kg/kWp | 43.0 kg/kWp | -2.4 kg/kWp for 745 | | Dimensions | 2384x1303x30 mm | 2384x1303x33 mm | 2384x1303x30 mm vs 2384x1303x33 mm | | Voltage at max power | 38.36 V | 40.14 V | 1.78 V apart | ## Every compared parameter | Parameter | 705W (series) | 745 | | --- | --- | --- | | Rated power | 705 Wp | 745 Wp | | Module efficiency | 22.70 % | 23.98 % | | Power density | 227.0 Wp/m² | 239.8 Wp/m² | | Open-circuit voltage | 46.03 V | 48.17 V | | Voltage at max power | 38.36 V | 40.14 V | | Short-circuit current | 19.30 A | 19.49 A | | Current at max power | 18.38 A | 18.56 A | | Temperature coefficient | -0.340 %/°C | -0.340 %/°C | | Dimensions | 2384x1303x30 mm | 2384x1303x33 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 32.0 kg | 32.0 kg | | Weight per kWp | 45.4 kg/kWp | 43.0 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | - | 0.45 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 132 | | Bifacial | Yes | Yes | ## Thirty-year yield Declared first-year losses, with 0.40% a year afterwards assumed for both panels, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.340 %/°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, 705W (series):** 23,400 kWh - **Cumulative output, 745:** 24,728 kWh - **Gap:** 1,328 kWh ## Output when hot | Condition | Cell temperature | 705W (series) | 745 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 705 W | 745 W | 100.0% of rated power | | Cool, bright day | 40 °C | 669 W | 707 W | 94.9% of rated power | | Typical summer roof | 55 °C | 633 W | 669 W | 89.8% of rated power | | Hot roof | 70 °C | 597 W | 631 W | 84.7% of rated power | ## Against the whole database | Measure | 705W (series) | 745 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #3,364 | #376 | 14,129 | 745 leads by 2,988 places | | Power density | #3,418 | #366 | 14,129 | 745 leads by 3,052 places | | Heat behaviour | #8,846 | #8,846 | 14,129 | Tied - the same position in the database | | Weight | #718 | #257 | 14,129 | 745 leads by 461 places | | Warranty | #21 | #21 | 14,129 | Tied - the same position in the database | | Overall | #990 | #144 | 14,129 | 745 leads by 846 places | ## Questions ### Which panel is better: Gamko New Energy GKA210N132-705W (series) or Gamko New Energy GKA210N132-745? According to our database: **Gamko New Energy GKA210N132-745** has higher module efficiency (**23.98%** vs **22.70%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Gamko New Energy GKA210N132-705W (series) and Gamko New Energy GKA210N132-745? **Gamko New Energy GKA210N132-**705 W** (series)** has a module efficiency of **22.70%**, while **Gamko New Energy GKA210N132-745** is **23.98%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Gamko New Energy GKA210N132-705W (series) use vs Gamko New Energy GKA210N132-745? **Gamko New Energy GKA210N132-**705 W** (series)** uses **TOPCon** cells; **Gamko New Energy GKA210N132-745** 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 Gamko New Energy GKA210N132-705W (series) and Gamko New Energy GKA210N132-745? **Gamko New Energy GKA210N132-**705 W** (series)** has a **30 years** power warranty; **Gamko New Energy GKA210N132-745** 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 Gamko New Energy GKA210N132-705W (series) and Gamko New Energy GKA210N132-745 bifacial panels? Both **Gamko New Energy GKA210N132-**705 W** (series)** and **Gamko New Energy GKA210N132-745** 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 - [Gamko New Energy GKA210N132-705W (series) vs Gamko New Energy GKA210N132-720W (series)](https://comparepv.com/compare/gamko-new-energy-gka210n132-705w-series/gamko-new-energy-gka210n132-720w-series) - 4 differences, the largest is module efficiency - [Gamko New Energy GKA210N132-705W (series) vs Gamko New Energy GKA210N132-715W (series)](https://comparepv.com/compare/gamko-new-energy-gka210n132-705w-series/gamko-new-energy-gka210n132-715w-series) - 3 differences, the largest is module efficiency - [Gamko New Energy GKA210N132-705W (series) vs Gamko New Energy GKA210N132-710W (series)](https://comparepv.com/compare/gamko-new-energy-gka210n132-705w-series/gamko-new-energy-gka210n132-710w-series) - The same specification on paper - [Gamko New Energy GKA210N132-705W (series) vs Gamko New Energy GKA210N132-700W (series)](https://comparepv.com/compare/gamko-new-energy-gka210n132-705w-series/gamko-new-energy-gka210n132-700w-series) - The same specification on paper - [Gamko New Energy GKA210N132-745 vs Gamko New Energy GKA210N132](https://comparepv.com/compare/gamko-new-energy-gka210n132-745/gamko-new-energy-gka210n132) - The same specification on paper - [Gamko New Energy GKA210N132-745 vs Gamko New Energy GKA210N132-750](https://comparepv.com/compare/gamko-new-energy-gka210n132-745/gamko-new-energy-gka210n132-750) - The same specification on paper --- Source: https://comparepv.com/compare/gamko-new-energy-gka210n132-705w-series/gamko-new-energy-gka210n132-745 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.