Fluorescent Mercury "Daylight" Now Available to Horologists

From Horology magazine, August, 1939

Fluorescent Mercury "Daylight" Now Available to Horologists

Fluorescent mercury light, which is being used more and more in institutions where exacting work is done, or where light approximating daylight is especially desirable, is now available to the horologist, who more than any other workman is in need of better light. Constantly aware of this need, he has availed himself of the many new improvements in bench lighting, but even the best lamps heretofore have produced too much heat and glare.

The fluorescent mercury tube is entirely different in principle and effect from the ordinary incandescent lamp bulb. It never becomes hot and it radiates almost no heat whatever-a factor that increases comfort considerably, helping to keep the workman and the surface of his bench cool. The mercury tube is 18" long and sheds light from its entire surface. It burns only 15 watts but produces a very powerful diffused light, almost like daylight, which illuminates the entire bench.

While it gives a far greater volume of light than ordinary lamps, the mercury tube is without dazzle or glare and one can look directly at the lighted tube without discomfort or squinting. An ideal lamp for the watchmaker because it reduces eyestrain and improves visibility.

Credit for making fluorescent mercury light available to horologists goes to Swartchild & Company. Their new improved Triumph Bench Lamp is designed and manufactured exclusively for horologists. It is solidly constructed, is statuary bronze plated, and requires only a small space for fastening it back of the bench. Naturally it can be adjusted to any position.