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when you want to test led distribution intensity curve and IES files, we will be talk this kind of equipment which is goniophotometer. This device is an automatic light distribution intensity 3D curve testing system. It can test many Optical parameters, like total luminous flux, zonal luminous flux etc. According to IESNA-LM-79-08, we will talk the rotating mirror goniophotometer, like LSG-2000 Goniophotometer with Rotating Mirror, this kind of goniophotometer can fully meet demand, it combined all advantages of goniophotometer, the test result have high accuracy.

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