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Book 4 published by Zhaga Consortium

Posted on Friday November 21 2014, by Tim Whitaker

Zhaga has published Edition 1.2 of Book 4, its specification for LED light engines (LLEs) for applications that need a high-intensity light source, such as street lighting and industrial high-bay lighting.

For the first time, the full version of Book 4 is now available for public download from the Zhaga website.

Zhaga Interface Specification Book 4 defines the interchangeability requirements for high-light-output LED light engines (LLEs), where each LLE comprises a rectangular LED module with a separate LED driver (electronic control gear).

The three LLE categories in Book 4 are defined by the size of the rectangular light-emitting surface (LES). These LES dimensions are 30 mm x 7.5 mm, 42 mm x 10.5 mm, and 60 mm x 15.0 mm.

Several companies have already achieved Zhaga certification for LED modules and LED luminaires that comply with Book 4. The Certified Product Database includes Book 4 modules from Philips and Osram, as well as Book 4 luminaires certified by Trilux.