IEC PAS 63329:2020(E) This Book 14 defines three socketable LED Light Engines (with integrated Electronic Control Gears) and three socketable LED Modules (without integrated Electronic Control Gears). These LED Modules and LLEs have a rectangular shape and are typically applied in general lighting applications. These products are intended to be installed and replaced by professionals and non-professionals. This Book 1 defines the common concepts that underlie the Zhaga interface specifications. In addition, this Book 1 specifies general requirements for Zhaga compliant components of LED Luminaires.