10 C.F.R. § 431.282 Definitions concerning mercury vapor lamp ballasts.
Title 10 - Energy
High intensity discharge lamp means an electric-discharge lamp in which— (1) The light-producing arc is stabilized by bulb wall temperature; and (2) The arc tube has a bulb wall loading in excess of 3 Watts/cm2 , including such lamps that are mercury vapor, metal halide, and high-pressure sodium lamps. Mercury vapor lamp means a high intensity discharge lamp in which the major portion of the light is produced by radiation from mercury operating at a partial pressure in excess of 100,000 PA (approximately 1 atm), including such lamps that are clear, phosphor-coated, and self-ballasted. Mercury vapor lamp ballast means a device that is designed and marketed to start and operate mercury vapor lamps by providing the necessary voltage and current.
Title 10: Energy
PART 431—ENERGY EFFICIENCY PROGRAM FOR CERTAIN COMMERCIAL AND INDUSTRIAL EQUIPMENT
Subpart P—Mercury Vapor Lamp Ballasts
§ 431.282 Definitions concerning mercury vapor lamp ballasts.
