Bifacial module Bifacial modules not only generate electricity from sunlight on their front sides but also from reflected light on their rear sides, increasing overall energy yield. Ultra Black The Black cells, Black frame, Black spacings and matt finish make this panel a true aesthetic enhancement for your roof. Only the darkest cells are selected to use in our panels. Glass-Glass Glass at the front and at the rear for a longer longevity, lower degradation and less chance of micro-cracks. They are also more weather-, water- and fire-resistant and contain no PFAS. Belgian quality Designed and engineered in the heart of Europe using only parts that meet the highest European requirements for quality and safety.