Gokin 475W GBC Dual Glass (Transparent Back) (GK-3-54HGBD-475M)
475W back-contact panel with a transparent dual-glass back sheet, 23.3% efficient with no front-side busbars.
- 23.3% module efficiency
- GBC back-contact cells, no front busbars
- Transparent dual glass, 2.0mm both sides
- 108 half-cells in a 1800 x 1134 mm frame
- CEC-accredited installers
- Brisbane, Ipswich, Gold Coast and Sunshine Coast
- Workmanship warranty included
What makes the Gokin 475W GBC Dual Glass (Transparent Back) a strong choice for your roof?
The Gokin 475W GBC is a back-contact panel, which makes it unusual in this range. Moving the cell interconnections to the rear removes the busbar lines from the front face, lifting the active area to 23.3% module efficiency and leaving a uniform surface with no visible gridlines.
The transparent version of the dual-glass build is what sets this variant apart from its full-black sibling. The rear glass is clear, so light passes through the gaps between cells. On a pergola, carport or patio cover that turns the array into a roof that still lets daylight down.
Construction is 2.0mm coated semi-tempered glass on both faces rather than a polymer backsheet. Glass does not yellow, crack or delaminate, which is the failure mode that ends a backsheet panel early.
At 1800 x 1134 mm and 24.8 kg it is a larger and heavier module than a 96-cell 475W panel, so allow for the extra rail span and handling weight when planning the mount.
Back-contact cells, no shading on the front
GBC puts the cell interconnections on the rear. The front face has no busbar lines across it, which lifts the active area and gives the panel a clean, uniform look from the ground.
Transparent back sheet
The rear glass is clear rather than opaque. On a pergola, carport or patio cover it lets filtered light through, which makes this the panel to choose when the array doubles as a roof you sit under.
23.3% efficiency from 108 cells
Efficiency sits in the upper band for a 475W module. In practice that means more watts from the same roof area than most 475W panels in this catalogue.
Dual glass on both faces
2.0mm coated semi-tempered glass front and back replaces the usual polymer backsheet. Glass does not yellow, crack or delaminate the way backsheets can over a 25-year life.
What are the technical specifications of the Gokin 475W GBC Dual Glass (Transparent Back)?
Full electrical and mechanical data is in the manufacturer datasheet. The key figures are below.
| Model | GK-3-54HGBD-475M (IEC 61215-2021) |
|---|---|
| Rated power | 475 W |
| Module efficiency | 23.3% (calculated) |
| Cell type | N-Type |
| Cell technology | IBC |
| Number of cells | 108 half-cell |
| Frame colour | Black |
| Frame thickness | 30 mm |
| Connector | MC4-EVo2 |
| Dimensions (L x W x H) | 1800 x 1134 x 30 mm |
| Weight | 24.80 kg |
| Product warranty | 25 years |
| Performance warranty | 25 years |
| Certifications | IEC 61215:2021, IEC 61730 |
| Units per pallet | 37 |
Variant datasheet not published by Gokin. Specs below are from the OSW-supplied datasheet and the source data sheet.
Download the full Gokin 475W GBC Dual Glass (Transparent Back) datasheet (PDF) Manufacturer product page
Can SolarThoughts install the Gokin 475W GBC Dual Glass (Transparent Back) at my home?
Yes. Our CEC-accredited team supplies and installs this panel across Brisbane, Ipswich, the Gold Coast and the Sunshine Coast. We size every array around your roof, its orientation and shading, and your actual power use rather than a standard package.
Not sure how many panels you need? Try our solar calculator or read our solar buying guides.
Frequently asked questions
How many of these panels do I need for a 6.6kW system?
About 14 panels at 475W each gives you a 6.6kW array. We confirm the final count after checking your roof space, orientation and shading, and matching the array to your inverter.
How much roof space and weight will they add?
Each panel measures 1800 x 1134 x 30 mm and weighs 24.8 kg, so a 6.6kW system of about 14 panels needs roughly 29 square metres of clear roof and adds around 347 kg spread across it. We check both the layout and the roof structure during the site assessment.
How efficient is this panel?
Module efficiency is 23.3%. Higher efficiency means more watts from the same roof area, which matters most when roof space rather than budget is the limiting factor.
What warranty comes with it?
The manufacturer offers 25 years product warranty and 25 years performance warranty. SolarThoughts also provides a separate workmanship warranty on the installation itself.
Is this panel approved for installation in Australia?
This panel is certified to IEC 61215 and IEC 61730, the international standards behind CEC listing. The CEC approved modules list is republished regularly, so we confirm the current listing for every panel at the time we quote it. Ask us and we will send you the entry for the exact model going on your roof.
