Two-sided double-glazed modules, symmetrical structural design, low risk of hidden cracks. Higher power output even under low irradiance environments like on cloudy or foggy days 3-fold IEC new standard tests passed, 15-year material warranty, and 30-year power warranty. Ideal for. In the ever-evolving world of photovoltaic technology, double glass solar modules are emerging as a game-changer. By encapsulating solar cells between two layers of glass, these modules offer unparalleled durability and efficiency. Bifacial ratio reaches 80%, 30% more power generation than conventional modules. These modules are thoughtfully designed and Cradle to Cradle certified, ensuring they meet high environmental and sustainability standards. B, C stands for October, November and December respectively). Each module has only one bar code.