What is the TommaTech 620Wp 108TN M12 TopCon Diamond Plus Solar Panel?
TommaTech 620Wp 108TN M12 TopCon Diamond Plus Solar Panel, in TommaTech's Diamond Plus series, is a solar panel delivering 12 Wp with M620 cell size N-type TOPCon technology. The 108TN construction combines a high power class with a module size that is practical on roofs.
In this panel, which shares the same body as its sibling models, the only difference is the 620 Wp nominal power; on projects with limited roof area, the higher power class increases installed capacity. For a system of about 10 kWp, 17 of these panels are needed (arithmetic; varies with roof layout).
Key technical specifications
- Model: 108TN, M12 cell size, TOPCon N-type, Diamond Plus series
- Power class: 620 Wp
- Glass surface: special coating that reduces reflection and dust build-up
- Low light: targets high efficiency in the morning and in cloudy weather
- Warranty: 15-year product, 30-year performance warranty
Which projects is it suitable for?
It is a suitable power class for residential roofs, villas, commercial buildings and small-scale agricultural energy systems. The 15-year product warranty can be a deciding factor for homeowners and businesses planning a long-term investment; it adapts to both grid-tied and hybrid systems.
Use in Antalya and Solar Nexo support
By theoretical calculation (PVGIS: 1 kWp produces about 1,656 kWh/year in Antalya), this 620 Wp module produces about 1,027 kWh per year. The figure varies with roof orientation, tilt and shading; salt and humidity in coastal areas and dust inland affect how often the panel needs washing.
The document list includes the panel datasheet, two separate Diamond Plus CE certificates and the TommaTech CE certificate; it is advisable to review the technical records of a panel that will operate in Antalya's hot summers before installation.
With its Kepez-based team, Solar Nexo supplies the panel, designs it for the roof or land, installs and commissions it; technical support follows. The datasheet and test certificates can be downloaded from the product page.







