An on-board vehicle diagnostic system includes sensors for detecting vehicle operating parameters, such as speed, wheel speed, yaw rate, transverse acceleration, andor tire operating parameters, such as the tire inflation pressure and the temperature at the belt edge. Each lighthead includes a power supply device, which includes a timing signal generator and a synchronization device. Each of the plurality of legs have a first end adjacent to the back yoke and a second end extending away from the back yoke. A redistribution layer may be formed on the contact pad and a second surface of the non-photosensitive protection layer opposite to the first surface. The coil heats the cooking utensil.