We have a few local references located in Hoppers Crossing (VIC) that we generally recommend for installation of driving lights that include:
Trax Industries - 419/425 Old Geelong Rd, Hoppers Crossing
Hoppers Crossing Automotive - 2/12 Hammer Court, Hoppers Crossing
Almost all auto electricians are able to install driving lights. Always call to confirm with you local auto electrician.