We provide you only A-grade and proven modules of world leading manufacturers. All of the modules have european certificate CE. , they passed sophisticated quality tests TUV Rheiland IEC61215, IEC61730.
Standard minimum warranty is 5 years on material, 10 years of 90% power output warranty and 25 years of 80% power output warranty. Some producers offer longer warranties like linear power output warranty or 10 year product warranty. All main manufacturers are involved in PV Cycle– system for collection and recycling end-of-life PV modules http://www.pvcycle.org/
We also recommend to choose manufacturers with strong market position, appropriate tiering http://about.bnef.com and suitable bankability.
If you demand any other brand, please do not hesitate to contact us.