This International Standard specifies the performance requirements for LED modules, together with the test methods and conditions, required to show compliance with this standard. The following types of LED modules are distinguished: Type 1: integrated LED modules for use on d.c. supplies up to 250 V or on a.c. supplies up to 1000 V at 50 Hz or 60 Hz. Type 2: LED modules operating with part of separate controlgear connected to the mains voltage, and having further control means inside ("semi-integrated") for operation under constant voltage, constant current or constant power. Type 3: LED modules where the complete controlgear is separate from the module (nonintegrated) for operation under constant voltage, constant current or constant power.