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Current recommendations for fully enclosed, unventilated light fixtures (such as those recessed into insulated ceilings), are either to use "reflector CFLs" (R-CFL), [22] [23] cold-cathode CFLs or to replace such fixtures with those designed for CFLs. [22] A CFL will thrive in areas that have good airflow, such as in a table lamp. [24]
Like other gas-discharge lamps such as the very-similar mercury-vapor lamps, metal-halide lamps produce light by ionizing a mixture of gases in an electric arc.In a metal-halide lamp, the compact arc tube contains a mixture of argon or xenon, mercury, and a variety of metal halides, such as sodium iodide and scandium iodide. [7]
Dropped ceiling featuring ceiling tiles, lights, air diffusers, smoke detector, and more Dropped ceiling with ceiling tile light fixture. A dropped ceiling is a secondary ceiling, hung below the main (structural) ceiling. It may also be referred to as a drop ceiling, T-bar ceiling, false ceiling, suspended ceiling, grid ceiling, drop in ceiling ...
The spectrum of light emitted from a fluorescent lamp is the combination of light directly emitted by the mercury vapor, and light emitted by the phosphorescent coating. The spectral lines from the mercury emission and the phosphorescence effect give a combined spectral distribution of light that is different from those produced by incandescent ...
Architectural lighting design is a field of work or study that is concerned with the design of lighting systems within the built environment, both interior and exterior. It can include manipulation and design of both daylight and electric light or both, to serve human needs. [1] [2] Lighting design is based in both science and the visual arts.
The University of Colorado has arranged to obtain a record amount of insurance coverage for Heisman Trophy winner Travis Hunter and quarterback Shedeur Sanders to protect them in case they are ...
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