| 11. | His own arc lamps started to be used as military searchlights.
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| 12. | The spotlights used were xenon arc lamps requiring 4 kilowatts of power each.
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| 13. | Carbon arc lamps operate at high powers and produce high intensity white light.
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| 14. | All modern xenon short-arc lamps use a fused quartz envelope with thoriated tungsten electrodes.
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| 15. | Initially the company produced scientific apparatus, including microscopes, heliostats, cathetometers, theodolites and arc lamps.
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| 16. | The xenon arc lamp is used when a continuous source of radiation is needed.
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| 17. | -Light fixtures : Nontraditional chandeliers with colored glass beads, arc lamps; decorative sconces, candelabras.
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| 18. | The case contains a high-powered concentrated lamp ( such as an arc lamp ).
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| 19. | The common fluorescent lamp is a low-pressure mercury arc lamp.
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| 20. | A drawback of that technology is the warm up time required for arc lamps.
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