The IES test is completely tested by means of a distributed photometer, and the measured formats mainly include North American IES, European ldt, international cie, and British cib formats. The main test items are: 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.