Definitions Flashcards
Group that generates voluntary product performance standards for many U.S. industries.
ANSI (American National Standards Institute)
Circuitry used to detect and limit arcing of ballast output leads.
Anti-Arc
Circuitry used to prevent striations or spiraling in energy-saving lamps due to low temperature or low current operation.
Anti-Striation
Circuitry used to restart the lamps without resetting the power to the ballast.
Auto-Restrike
Device for starting and regulating fluorescent and high intensity discharge (HID) lamps.
Ballast
Marking on ballast that shows compliance with Federal Ballast Energy Law.
Circle-E
The amount of light that the lamp produces after it has operated for approximately 40 percent of its rated life. Also called Mean Lumens.
Design Lumens
A device that produces light by using an electric arc, rather than a filament, to create illumination.
Discharge Lamp
Lumen output per unit of power supplied to the lamp, measured in lumens per watt.
Efficacy
Emission of visible light by the absorption of energy from another source.
Fluorescence
Measure of light level on a surface that is being illuminated.
Foot Candles
Emission of visible light by a heated material.
Incandenscence
Electromagnetic or electronic ballast that ignites the lamps without heating the lamp filaments.
Instant Start Ballast
Fluorescent lamp that requires no filament heating before igniting and producing light.
Instant Start Lamp
The decrease in lumen output of a light source over time. Also called Lumen Maintenance.
Lumen Depreciation