1. Bifacial technology enables additional energy harvesting from rear side（up to 30%） 2. Backsheet and junction box supporting 1500V system Split junction box, Cable Length can be Customized Option: full Black module with Black frame and black Backsheet 5BB reduce the current heat loss of the battery inside the module,beautiful appearance,more suitable for roof installation Certificate: TUV, CE, ETL, INMETRO, KS, COC,Saber