Solar Module: 1,TUV ,CE, RoHS ,ISO900. 2,10 years quality ... TEST CONDITIONS :1000w,AM1.5,25°CParameters typeBLT190M-36MonocrystallineMaximum power (watt) W190WProduction tolerance+3% /-3%Maximum power voltage V36.50±0 ... ,10years 90% and 20yesr 85% of the power 190W-36V Monocrystalline Solar panel