1.using high quality motecsolar cells 2.competitive price 3.ISO,YUV,ROHS,IEC,SGS and Chinese Golden Sun certification 1.Monocrystalline silicone cell2.Model HTB5W HTB4W VOC:21.6V 21.4V VMP:17.2V 17.2V ISC:0.33A 0.23A IMP:0.29A 0.23A PM:5W 4WSTC:Irradiance 1000W/m2,Module temperature 250C AM=1.5