Universal Lighting Technologies ("Universal") offers a wide array of ballasts for High Intensity Discharge (HID) lamps. Applications include Metal Halide (MH), Pulse Start Metal Halide (PSMH) and high pressure Sodium (HPS) lamps ranging from 35 to 1500 watts. We're the technology leader in every category of HID ballasts. Our Universal Precise line is the latest innovation in magnetic core & coil technology in years. These ballasts are used primarily for indoor down lighting applications where quiet operation is essential. All the components of these ballasts are enclosed in a fluorescent-style ballast can and are thermally protected.