480 volt in addition to quad tap. Universal Lighting’s Multi-5® is the industry's first five-voltages-in-one, high intensity discharge (HID) magnetic ballast family. The Multi-5® line takes the popular quad ballast design (120, 208, 240 and 277 volts) and adds 480-volt capability. That ensures you always have the right voltage HID ballast for every metal halide and high pressure sodium application.