High Intensity Discharge Ballasts – Millennium Scoop Canada
Auto Parts Class Action

High Intensity Discharge Ballasts

This class action alleges that the defendants unlawfully conspired to rig bids for and artificially inflate the prices of High Intensity Discharge Ballasts (“HID Ballasts”) used in Automobiles and other light-duty Vehicles and sold to dealers and consumers across Canada from July 1, 1998 to March 1, 2010.

A HID Ballast is an electrical device that limits the amount of electrical current flowing to a high intensity discharge headlamp, which would otherwise rise to destructive levels due to the high intensity discharge headlamp’s negative resistance.


  • January 24, 2020 – The Denso defendants have agreed to settle this action for $678,000.00 . A Court hearing is scheduled for February 28, 2020 to approve this settlement. Click here to read the Notice.
  • August 13, 2018 – Justice Belobaba certified the action for settlement purposes and approved the notice to the class
  • March 2, 2018 – the plaintiffs entered into a settlement agreement with Mitsubishi

Settlement Agreements

Mitsubishi Settlement Agreement dated March 2, 2018

Orders and Decisions

Order of Justice Belobaba dated August 13, 2018 re: Notice Approval and Certification

Notices to the Class

Notice of Hearing – April 2021 (EN, FR)
Notice of Hearing (EN, FR)