ALTHOUGH tubular fluorescent lamps have been used very extensively in industry since their introduction in March, 1940, there is still doubt in many minds as to why they should be preferred to older and more conventional forms of light sources. There is a general tendency to think of them only as sources similar to natural daylight in their colour rendering properties, and to overlook their other exceptional properties. To the lighting engineer daylight rendering is only one, and probably not the most important, of their qualifications. In an attempt to demonstrate the part which these lamps can play in industry, especially at the present time, this article has been written.
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