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The International Zhaga Alliance publishes the first book to be offered to non-members, Book 3, which, like Book 1, contains general information and definitions. Zhaga is the international lighting industry alliance that regulates the interface of various LED light engines.
The Book 3 available on the Zhaga website defines a spotlight LED light engine interface. The current version is 1.2 and the updated version will be released regularly. Specifically, Book 3 defines the interface between the luminaire and the non-plugged LED light engine (LLE) and a separate electronic control unit (ECG). The light engine has a disc shape with a maximum height of 7.2 mm and a typical diameter of 50 mm. An example of this is OSRAM's Prevaled Core Z2 LED module (Figure 1).
In addition to Book 3, Zhaga also publishes "Book 1: Overview and General Information", which gives an overview of the terminology. The purpose of the general information is to explain the general features of the five interfaces. The interface specification LED light source defined by Book 3 is suitable for downlights and other applications that require point light sources. The LED modules involved are screw-mounted lighting devices based on heat sinks supplied by OEM luminaire manufacturers and can be controlled with separate electronically controlled gears. The LLES covered by Book 3 is round and between 9 mm and 23 mm in diameter. The output light is essentially a Lambertian illumination that allows the luminaire's optical system to be defined into the light distribution application.
The Book 3 available on the Zhaga website defines a spotlight LED light engine interface. The current version is 1.2 and the updated version will be released regularly. Specifically, Book 3 defines the interface between the luminaire and the non-plugged LED light engine (LLE) and a separate electronic control unit (ECG). The light engine has a disc shape with a maximum height of 7.2 mm and a typical diameter of 50 mm. An example of this is OSRAM's Prevaled Core Z2 LED module (Figure 1).
figure 1
The Zhaga LED Light Engine specification has been released from Release 2 to 8, 8 and 2, all incorporating ECG and LLES for downlight applications. However, the base of the Book 2 LLE is 65 mm, while the base of the Book 8 is 85 mm (Figure 2).
figure 2
In addition to Book 3, Zhaga also publishes "Book 1: Overview and General Information", which gives an overview of the terminology. The purpose of the general information is to explain the general features of the five interfaces. The interface specification LED light source defined by Book 3 is suitable for downlights and other applications that require point light sources. The LED modules involved are screw-mounted lighting devices based on heat sinks supplied by OEM luminaire manufacturers and can be controlled with separate electronically controlled gears. The LLES covered by Book 3 is round and between 9 mm and 23 mm in diameter. The output light is essentially a Lambertian illumination that allows the luminaire's optical system to be defined into the light distribution application.
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