- 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.
Nelle lampade ad alta intensità di scarico, questa è la distanza tra le punte dell'elettrodo, che rappresenta la lunghezza fisica della scarica elettrica.
Industry:Lights & lighting
Defined as ballast factor divided by input watts. The value is used to evaluate various lighting systems based on light output and power input. The BEF can only be used to compare systems operating the same type and quantity of lamps.
Industry:Lights & lighting
This is the percentage of a lamp's rated lumen output that can be expected when operated on a specific, commercially available ballast. Note that the "rated output" is sometimes measured on a reference ballast unlike ones that actually operate the lamp in the field. For example, a ballast with a ballast factor of 0.93 will result in the lamp's emitting 93% of its rated lumen output. A ballast with a lower BF results in less light output and also generally consumes less power.
Industry:Lights & lighting
Power or energy dissipated in the ballast as heat and not converted to lamp energy.
Industry:Lights & lighting
La temperatura massima di esercizio consentita per la base in gradi Celsius. Staffaggio produttori devono garantire che tali condizioni sono soddisfatte nel loro apparecchio.
Industry:Lights & lighting
The angular dimension of the cone of light from reflectorized lamps (such as R and PAR types) encompassing the central part of the beam out to the angle where the intensity is 50% of maximum. The beam angle sometimes called "beam spread" is often part of the ordering code for the reflectorized lamps. Example: The 50PAR30/HIR/NFL25 is a 50 watt PAR30 narrow flood lamp with a beam angle of 25 degrees (See FIELD ANGLE).
Industry:Lights & lighting
Un termine popolare che fa riferimento a una fonte di luce che emettono principalmente vicino UV (320-400 nm) e pochissima luce visibile.
Industry:Lights & lighting
Il tipo di vetro o quarzo utilizzato nella busta del vetro che circonda la sorgente di luce. Il materiale può anche avere rivestimenti applicati per ottenere particolari prestazioni.
Industry:Lights & lighting
Bulb shape followed by its size (the maximum diameter of the bulb expressed in eighths of an inch). For Compact Fluorescent products, "S", "D", "T", and "Q" are used to represent Single, Double, Triple and Quad Biax® sizes. The code also includes a reference such as T4 to represent the size of the tube. Rectangular headlamps are designated as "Rect" and the number of millimeters horizontally.
Industry:Lights & lighting
Candele sferiche medio iniziale della tensione di progettazione. Dire candele sferiche è il metodo generalmente accettato di valutazione la totale potenza luminosa di lampade in miniatura. Per convertire questo rating lumen, moltiplicarlo per 12.57 (4 pi).
Industry:Lights & lighting
