1. High quality 92% transparent Eva film will enhance 1-2% power efficiency. (Process includes heating, vacuuming, holding and cooling). Price from USD 0.88/Sqm.
2. Back sheet with PVDF film/PET/EVA could max the lifetime over 30 years. Price from USD 1.5/Sqm.
3. Strong adhesiveness materials with 156 solar cells will improve fast production lower than 15 mins. Wafer Price from USD 0.60/piece.