Home / Standards / GB 37478-2019 GB 37478-2019 Active Minimum allowable values of energy efficiency and energy efficiency grades of LED luminaires for road and tunnel lighting 道路和隧道照明用LED灯具能效限定值及能效等级 Standard Type GB ICS 27.010 CCS F01 Status 现行 Issue Date 2019-04-04 Implementation 2020-11-01 Responsible Dept 国家标准委 Drafting Unit N/A