Ies test is completed with the help of distributed photometer. The measured formats mainly include North American ies, European LDT, international CIE and British CIB formats. The test items mainly include: light distribution, luminous flux, luminous efficiency, light intensity distribution, UGR glare value and bug value.
Main test standards include: lm-79, lm-63, GB 9468, en 13032, etc
