--- title: "Gokin GK-3-54HGb-470M vs Gokin GK-3-54HGb-500M - Solar Panel Comparison | ComparePV" description: "Compare Gokin GK-3-54HGb-470M vs Gokin GK-3-54HGb-500M side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/gokin-gk-3-54hgb-470m/gokin-gk-3-54hgb-500m" updated: 2026-09-11 --- # Gokin GK-3-54HGb-470M vs Gokin GK-3-54HGb-500M 500M leads on the differences that matter The largest is module efficiency: 1.50 pp more efficient. 14 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Gokin GK-3-54HGb-470M](https://comparepv.com/panel/gokin-gk-3-54hgb-470m) | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | | Manufacturer | Gokin | Gokin | | Power | 470 Wp | 500 Wp | | Efficiency | 23.00 % | 24.50 % | | Technology | Back Contact | Back Contact | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 470M | 500M | Difference | | --- | --- | --- | --- | | Module efficiency | 23.00 % | 24.50 % | +1.50 pp for 500M | | Power density | 230.3 Wp/m² | 245.0 Wp/m² | +14.7 Wp/m² for 500M | | Rated power | 470 Wp | 500 Wp | +30 W for 500M | | Weight per kWp | 45.5 kg/kWp | 42.8 kg/kWp | -2.7 kg/kWp for 500M | | Current at max power | 14.05 A | 14.68 A | 0.63 A apart | ## Every compared parameter | Parameter | 470M | 500M | | --- | --- | --- | | Rated power | 470 Wp | 500 Wp | | Module efficiency | 23.00 % | 24.50 % | | Power density | 230.3 Wp/m² | 245.0 Wp/m² | | Open-circuit voltage | 40.37 V | 41.21 V | | Voltage at max power | 33.48 V | 34.08 V | | Short-circuit current | 14.86 A | 15.28 A | | Current at max power | 14.05 A | 14.68 A | | Temperature coefficient | -0.260 %/°C | -0.260 %/°C | | Dimensions | 1800x1134x30 mm | 1800x1134x30 mm | | Module area | 2.041 m² | 2.041 m² | | Weight | 21.4 kg | 21.4 kg | | Weight per kWp | 45.5 kg/kWp | 42.8 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.35 %/yr | 0.35 %/yr | | Cell technology | Back Contact | Back Contact | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 108 | | Bifacial | No | No | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.260 %/°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, 470M:** 15,892 kWh - **Cumulative output, 500M:** 16,907 kWh - **Gap:** 1,015 kWh ## Output when hot | Condition | Cell temperature | 470M | 500M | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 470 W | 500 W | 100.0% of rated power | | Cool, bright day | 40 °C | 452 W | 481 W | 96.1% of rated power | | Typical summer roof | 55 °C | 433 W | 461 W | 92.2% of rated power | | Hot roof | 70 °C | 415 W | 442 W | 88.3% of rated power | ## Against the whole database | Measure | 470M | 500M | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #1,919 | #74 | 14,005 | 500M leads by 1,845 places | | Power density | #1,854 | #77 | 14,005 | 500M leads by 1,777 places | | Heat behaviour | #511 | #511 | 14,005 | Tied - the same position in the database | | Weight | #757 | #241 | 14,005 | 500M leads by 516 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #6,897 | #4,079 | 14,005 | 500M leads by 2,818 places | ## Questions ### Which panel is better: Gokin GK-3-54HGb-470M or Gokin GK-3-54HGb-500M? According to our database: **Gokin GK-3-54HGb-500M** has higher module efficiency (**24.50%** vs **23.00%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Gokin GK-3-54HGb-470M and Gokin GK-3-54HGb-500M? **Gokin GK-3-54HGb-470M** has a module efficiency of **23.00%**, while **Gokin GK-3-54HGb-500M** is **24.50%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Gokin GK-3-54HGb-470M use vs Gokin GK-3-54HGb-500M? **Gokin GK-3-54HGb-470M** uses **Back Contact** cells; **Gokin GK-3-54HGb-500M** uses **Back Contact**. 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 Gokin GK-3-54HGb-470M and Gokin GK-3-54HGb-500M? **Gokin GK-3-54HGb-470M** has a **30 years** power warranty; **Gokin GK-3-54HGb-500M** 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. ## Related comparisons - [Gokin GK-3-54HGb-470M vs Gokin GK-3-54HGF-500M](https://comparepv.com/compare/gokin-gk-3-54hgb-470m/gokin-gk-3-54hgf-500m) - 5 differences, the largest is module efficiency - [Gokin GK-3-54HGb-470M vs Gokin GK-3-54HGb-495M](https://comparepv.com/compare/gokin-gk-3-54hgb-470m/gokin-gk-3-54hgb-495m) - 5 differences, the largest is module efficiency - [Gokin GK-3-54HGb-470M vs Gokin GK-3-54HGF-495M](https://comparepv.com/compare/gokin-gk-3-54hgb-470m/gokin-gk-3-54hgf-495m) - 4 differences, the largest is module efficiency - [Gokin GK-3-54HGb-470M vs Gokin GK-3-54HGb-490M](https://comparepv.com/compare/gokin-gk-3-54hgb-470m/gokin-gk-3-54hgb-490m) - 3 differences, the largest is module efficiency - [Gokin GK-3-54HGb-470M vs Gokin GK-3-54HGF-490M](https://comparepv.com/compare/gokin-gk-3-54hgb-470m/gokin-gk-3-54hgf-490m) - 3 differences, the largest is module efficiency - [Gokin GK-3-54HGb-470M vs Gokin GK-3-54HGb-485M](https://comparepv.com/compare/gokin-gk-3-54hgb-470m/gokin-gk-3-54hgb-485m) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/gokin-gk-3-54hgb-470m/gokin-gk-3-54hgb-500m 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.