... 2. ISO9001:2008, ISO14001:2004, TUV, CE, UL certified Monocrystalline solar panel 200W, 205W, 210W, 215W, 220W, 225W, 230W, 235W, 240W --Performance ... 80% power output over 25 Years Free from defects in materials and workmanship for 5 years--Qualification testTemperature cycling range: -40 ...