Guangdong Provincial Standard of the People's Republic of China
Latest
DB44/T 1647-2015
Scope
This standard specifies the naming, general requirements, test methods and markings of LED lighting modules for downlights. This standard applies to interchangeable LED lighting modules without radiators and external controls for LED downlights.
DB44/T 1647-2015 history
2015DB44/T 1647-2015 LED Module Interchange Standard for Downlights