The next generation of white light Significant upgrade opportunity over traditional HID systems;Viable alternative to fluorescent options;Excellent color quality and consistent light output from beginning to end Pairing Philips Advance e-Vision ballasts with Philips MasterColor Elite Medium Wattage lamps provides a powerful combination of sparkling, white light and energy efficiency superior to what other lighting technologies can offer. IntelliVolt 200-277V input with 92% efficiency;Dimming to 50% of lamp power;Metallic Enclosure for optimal thermal dissipation Indoor High-bay, flood and recessed fixtures in retail, institutional and industrial applications