The Symphony series is a high efficiency heterojunction technology (HJT) photovoltaic panel.

The PhaseLux Symphony is specifically designed for situations where diffused light or shadows are more likely to strike the PV arrays. The panels have an elegant, almost black appearance . In addition, this panel is available in a narrower design, allowing for more power on smaller roofs.

In these glass-glass solar panels, the high-efficiency HJT solar cells are sandwiched between two layers of glass. The double layer of glass in glass-glass solar panels offers many advantages such as higher performance and better quality and warranty.


  • Resistant to extreme weather, such as heavy hailstorms.
  • 27% higher performance
  • Up to 300% longer warranty and the best warranty conditions
  • Certified for fire safety
  • The chance of micro cracks is almost zero
  • High-end design
  • Exceptionally long service life of many decades
  • All-risk insurance free and transferable, upon registration with PhaseLux.

Due to the special Hetero Junction Technology (HJT), this panel achieves higher performance per m2, especially at lower light levels. For example, at sunrise, sunset and under cloudy conditions.

Two different materials are used in an HJT cell: crystalline and amorphous silicon. As a result, they achieve higher performance than cells of traditional PERC technology.

HJT thin film technology has been on the market since 1980, but was initially only applied in some forms. It was not until 2010 that it began to be used in conjunction with crystalline cells. This methodology is now so refined that it can compete with technologies available on the market, reaching 210 and more Wp/m².

“Staubli Connectoren”


Dimension: 1,038 x 1,755 x 30 mm. Power 400 Wp. Efficiency per m² 219.6 Wp.

Glass-glass panel 2 x 1.6 mm, with anti-reflective and anti-soiling coating on the outside.

High quality POE films in front and behind the cells, known for their anti-reflective properties and long resistance to moisture exposure.

HJT Bi-facial cells in half-cut design to keep the voltage loss in the cells low and thus increase the performance.

Application of bypass diodes in triple design to avoid hot spots in the panels.

Stäubli MC4 connectors according to European standard.

Now technically we have the panel already functional and resistant to weather conditions, etc.

To enable mounting on the roof, the panel is still provided with a 30 mm black anodized frame all around (for a glass-foil panel this is 35 or 40 mm, so a PhaseLux also looks aesthetically nicer on your roof).