An integrated circuit controls a power converter that includes single stage buck-boost converter and a switching full bridge that may be used to drive an HID lamp. The first set of integer pixels is not equal to the second set of integer pixels. The receptacles have a multi-system design which uses common internal components and an external housing which has a support structure therein readily adapted to allow adaptation of the design of the housing for use with multiple power distribution systems. At least one sidewall is angled less than approximately 85 degrees from the plane of the top surface of the substrate. One of the joint parts has a cage guiding surface for axially holding the cage in a first direction.