- 行业: Energy
- Number of terms: 8202
- Number of blossaries: 3
- Company Profile:
American conglomerate currently ranked by Forbes as the world's largest company. GE has multifarious business interests including power generation and financial services.
Lamp starting method in which lamps are started by high voltage input with no preheating of lamp filaments. Some rapid start lamps are designed so that they may be instant started. (See RAPID START).
Industry:Lights & lighting
A fluorescent lamp, usually with a single pin at each end, approved to operate on instant start ballasts. The lamp is ignited by a high voltage without any filament heating.
Industry:Lights & lighting
A popular term for a compact fluorescent lamp which includes a built-in ballast (See CFL).
Industry:Lights & lighting
Formula stating that if you double the distance from the light source, the light level goes down by a factor of 4, if you triple the distance, it goes down by a factor of 9, and so on.
Industry:Lights & lighting
A plot with lines connecting points of equal luminous intensity around a source.
Industry:Lights & lighting
A line plotted to show points of equal illuminance (lux or footcandles) on a surface illuminated by a source or sources.
Industry:Lights & lighting
A unit of temperature starting from absolute zero, parallel to the Celsius (or Centigrade) scale. 0C is 273K.
Industry:Lights & lighting
The standard measure of electrical energy and the typical billing unit used by electrical utilities for electricity use. A 100-watt lamp operated for 10 hours consumes 1000 watt-hours (100 x 10) or one kilowatt-hour. If the utility charges $.10/kWh, then the electricity cost for the 10 hours of operation would be 10 cents (1 x $.10)
Industry:Lights & lighting
Layers of steel, making up the "core" that is surrounded by the coils in a core & coil ballast.
Industry:Lights & lighting
