Zhaga Interface Specification Book 8 defines the interfaces of a socketable, circular LED light engine (LLE) with an integrated LED driver (electronic control gear).
The LLE has a round drum shape with maximum dimensions of 95 mm diameter and 45 mm height. It has a circular light-emitting surface (LES) with a diameter in the range of 59 mm to 71 mm, and a PHJ85d base.
Book 8 is similar to Book 2, except that the LLEs described in Book 8 have larger dimensions.
Book 8 LLEs are intended primarily (but not exclusively) for use in LED luminaires for downlighting applications.
Public downloads are available (Edition 1.1, June 2013):
The Zhaga Consortium will review and update this specification from time to time. To ensure you are aware of any updates to the Zhaga specifications, please subscribe to the Zhaga newsletter.
Zhaga members can certify products according to this Book, using various Authorized Test Labs.
Products that are certified according to each Book are listed in the Certified Products database.
Please download the following PDF file for an overview of Book 8:
This Book must be read together with Zhaga Interface Specification Book 1.