IEC 62868-2-1:2020 specifies safety requirements for semi-integrated organic light emitting diode modules operating with an external controlgear connected to the mains voltage, and which, in addition, have a control means inside (" semi-integrated" ) for operation under constant voltage, constant current or constant power and have a rated voltage up to 120 V ripple free DC or 50 V AC RMS at 50 Hz or 60 Hz.