Cited sources
Last verified 2026-09-25.
- Legal manufacturer as printed: Gokin Solar Co., Ltd.
- Gokin prints the cell type as GBC, with 120 cells (6x20) and 3.2 mm tempered glass in a single glass module, and its own news page says GBC uses back-contact cells that remove front-side gridline shading.
- The datasheet is marked for the AU market only, with product data updated as of July 2025, and Gokin lists it in its Australian download centre.
- The 23.9% efficiency headline applies to the 530 W code only; the datasheet prints 23.7% for the 525 W code.
- It is not scored yet because Gokin's AU warranty names the family only as the power template GK-5-60HG-xxxM rather than the exact printed codes, and no certification listing is cited for this record.
- This record covers the single glass GK-5-60HG only and is not joined to the GK-5-60HGb, GK-5-60HGBD or GK-5-60HGDb families.
- Gokin GK-5-60HG 525-530W datasheet (AU)https://www.gokinsolar.com/upload/download/GK-5-60HG%20525-530%20AU-202511-V02.pdf
Prints the product as a GBC module with single glass, GK-5-60HG, with codes GK-5-60HG-525M and GK-5-60HG-530M, 120 GBC cells, 23.7% and 23.9% efficiency, AU market only, and the legal name Gokin Solar Co., Ltd.
- Gokin AU download centre, module datasheetshttps://www.gokinsolar.com/au/download/4
Lists the GK-5-60HG 525-530W datasheet in Gokin's Australian download centre, separately from the GK-5-60HGb 520W datasheet.
- Gokin news: GBC modules in winter (7 Nov 2025)https://www.gokinsolar.com/en/news/339
States that Gokin GBC uses back-contact cell technology that removes front-side gridline shading.
- Gokin AU limited warranty for solar modules (effective 1 July 2025)https://www.gokinsolar.com/upload/download/GKM%C2%B7TN-SW-P001-F003%20A3%20Limited%20Warranty%20for%20Solar%20Modules%202507AU.pdf
Covers the family only as the template GK-5-60HG-xxxM, where xxx means nominal power, and lists GK-5-60HGb, GK-5-60HGBD and GK-5-60HGDb as separate types.