Description
High-pressure discharge lamps are characterized by their impressive economy and their ability to produce extremely bright light from such small dimensions. For example, a metal halide lamp in a football stadium floodlight consumes "only" 1000 W but generates as much light as a 5000 W incandescent lamp, and the light itself is produced in an area no larger than a 5 Mark coin. High-pressure discharge lamps are used mainly in shop windows and shop interiors (e.g. POWERSTAR HCI ), factories and outdoor lighting systems (e.g. VIALOX NAV 4Y). The light is generated directly by an arc discharge. A continuous electrical discharge between the two electrodes causes the various filler materials in the discharge to luminescence. High-pressure discharge lamps also need special control gear to ignite and operate them.
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Discharge lamps
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