IES testing is complete with the help of distributed photometers. The measurement formats mainly include North American IES, European ldt, international cie, and British cib formats. The main test items include: light distribution, luminous flux, luminous efficiency, light intensity distribution, UGR glare value and BUG value.
The main test standards are: LM-79, LM-63, GB 9468, EN 13032, etc.
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