Home / Standards / GB/T 39021-2020 GB/T 39021-2020 Active Intelligent lighting systems—General requirements 智能照明系统 通用要求 Standard Type GBT ICS 29.140.99 CCS K70 Status 现行 Issue Date 2020-07-21 Implementation 2021-02-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A