cost of light

lighting cost, cost of light

In lamp evaluation, the cost of light rather than total system cost; commonly expressed as the cost per million lumen-hours; depends on lamp cost, operating energy cost, and lamp replacement cost.
References in periodicals archive ?
The seminar will address LEDs, lighting terminology, lamp and ballast systems, an introduction to lighting controls, cost of light, photometry, optical control, traditional lighting systems and more.
In Section 3, we discuss the primary empirical trend: that consumption of light varies linearly with the ratio between gross domestic product and cost of light.
The cost of light, sweet crude for December delivery soared to $96.
The cost of light, sweet crude for November delivery jumped to nearly EUR85 a barrel in trading in New York.
The cost of light, sweet crude for November delivery jumped to nearly EUR85 a barrel - a new high - in trading in New York, building on highs seen last week on the back of disappointing inventory figures.
They are typically unaware of the cost of light and the factors that affect getting full value for their lighting dollar.
This workshop includes lighting technologies such as LEDs, lamp and ballast systems, lighting terminology, fixture types, cost of light and an introduction to lighting controls.
The cost of light, sweet crude hit a high of $84 a barrel at one point before easing back to just over $81 a barrel.
These products have been designed with the end application in mind, focusing on delivering both the quantity and quality of light required for general lighting applications together with an ability to significantly reduce the cost of light.
Focus is on Eaton's Cooper Lighting specific brand with an overview on light, sight and color, lamps and ballasts, cost of light, lighting terminology, photometry, optical control and luminaires.
The cost of light, sweet crude for November delivery jumped to nearly EUR85 a barrel in trading in New York, building on highs seen last week on the back of disappointing inventory figures.
With the rising cost of light, sweet crude oil, many refiners are turning to a lower quality heavier crude oil.