The right fit for your high-output applications Programmed Start Operation - Helps to extend lamp life in frequent switching applications such as occupancy sensors or daylight harvesting;Starting Capability at -20F - Suited for cold temperature applications (54W models only);High-Low Switching - One ballast can easily switch from 4-lamp to 2-lamp fixtures No matter what the conditions require, operating at a variety of line voltages between 120V to 480V, whether located in high ambient temperature environments (requiring a 90 C rating) or not, our family of Philips Advance Centium ballasts are ideal for a wide variety of applications. IntelliVolt Technology (120-277V);Lamp EOL Protection;UL Type CC rated - Anti-arcing circuitry provides greater flexibility to meet end-user application requirements Retail, commercial, institutional and industrial applications including; schools, offices, specialty & department stores, warehouses and manufacturing