C-tick is an EMC (electromagnetic compatibility) certification required for electrical products exported to Australia to protect telecommunication frequencies. It is similar to the EMC certification required in Europe. To obtain C-tick, a product must be tested according to CISPR standards and the test report submitted by an Australian importer to the Australian Communications Authority, who will review the application and provide a registration number if approved. Getting C-tick certification adds complexity for exporting LED lights to Australia but is important for product safety.