A HID - or high-intensity discharge - ballast is a behind-the-scenes device used regulate and limit current in
fluorescent lamps and
HID (High-Intensity Discharge) Lamps. With HID ballasts, the voltage needed to start the lamp is provided, and once the lamp is on the ballast maintains a constant and safe current level. HID's method of providing current extends lamp life and is more energy-efficient, saving the user on electricity costs. Browse our extensive selection of HID ballasts, including metal halide ballasts and high pressure sodium ballasts (HPS), and take on your next lighting project with confidence.