Modules are sourced from two of the world leading PV module manufacturers:-

Solar World

SolarWorld is Europe's largest manufacturer of PV modules with over 30 years experience in the industry and a reputation for quality and innovation. Modules are manufactured in Germany in fully automated ISO certified factories and independent tests have rated all sizes at the highest 'excellent' quality level. All Solarworld modules are also fully internationally certified as follows:-

Yingli

Yingli Solar is the largest  PV module manufacturer in the world and are vertically integrated from polysilcon production to module assembly to ensure consistently high quality levels. Yingli modules are recognised as quality products and  are internationally certified by TUV Rheinland to ISO, BS and UV standards.

All Dayliff modules are manufactured to the highest standards and are guaranteed to provide reliable performance over long life spans. They are quality products in terms of both technology and performance and are ideal power sources for all types of solar applications.