UL (Underwriters Laboratories), a global safety science provider, has been named an authorized testing laboratory for three new Zhaga Books—Zhaga Interface Specification Book 4: High-intensity LED light engines, Zhaga Interface Specification Book 7: Indoor light engines with separate electronic control gear and Zhaga Interface Specification Book 8: Socketable LED light engine with integrated control gear (85 mm base).
Zhaga is an industry-wide cooperation aimed at enabling the interchangeability of LED light sources made by different manufacturers, as well as developing standard specifications for these sources. “UL is proud to be a trusted authorized Zhaga Test Center and member of the Consortium Steering Committee,” says Todd Straka, global director, UL Lighting. “These additional book authorizations illustrate our growing commitment to assisting in the global adoption and use of high-quality and efficient LED Lighting products.”
Zhaga standards cover the physical dimensions, as well as the photometric, electrical and thermal behavior, of LED light engines. Standardization is expected to prevent market fragmentation into incompatible products.
Book 4 defines the interfaces of a type-D LED light engine (non-socketable LED module with separate electronic control gear). This LED light engine is intended for applications that need a high-intensity light source, such as street lighting and industrial high-bay applications. Book 4 specifies a rectangular light-emitting surface in three variants, 30 mm x 7.5 mm, 42 mm x 10.5 mm, and 60 mm x 15 mm.
Book 7 defines the interfaces of a type-D LED light engine (non-socketable LED module with separate electronic control gear). Book 7 includes a range of indoor LED light engines with different form factors and is intended for applications such as indoor office lighting.
Book 8 defines a socketable light engine with integrated control gear – mainly used in downlight applications.
These three new book accreditations come in addition to the two books UL is already authorized to test for—Zhaga Interface Specification Book 2: Socketable LED light engine with integrated control gear (65-mm base) and Zhaga Interface Specification Book 3: Disc-shaped LED module with 9-23 mm light-emitting surface.