public function getValidValues() { return [['01-2d-4c-ef-89-ab'], ['01-2D-4C-EF-89-AB'], ['01:2d:4c:ef:89:ab'], ['01:2D:4C:EF:89:AB'], ['01-2d-4c-ef-89-59'], ['ff-2d-4c-ef-89-59']]; }