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Interior Lamps

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Technical Information<br />

Xenon technology - The new standard for deck lamps<br />

Xenon technology represents the present peak in lamp system<br />

development. The advantage of xenon lamps in comparison<br />

with halogen lamps lies in their light flux, which is 2.5 times<br />

higher (with 35% lower energy consumption). This leads to very<br />

high luminance and therefore brighter and wider illumination of<br />

the deck. The colour of the light is similar to that of daylight. A<br />

considerable increase in comfort and active safety. The<br />

triumphant march of this new light is unstoppable. Whilst only<br />

expensive luxury cars were equipped with xenon light a few<br />

years ago, this technology is now also available in Hella Marine<br />

deck lamps.<br />

What is xenon light really?<br />

Instead of a coiled filament, a light arc is the light source in<br />

xenon lamps. The bulb, which is only the size of a cherry stone,<br />

is filled with xenon gas and metal salts. In order to ignite the<br />

xenon bulb, an extremely high voltage of approximately 20,000<br />

volts is required. This is provided by an electronic ballast: 12 or<br />

24 volt direct current is transformed into 20,000 volt alternating<br />

current. A light arc is created at temperatures of around 5000°<br />

C. With a power consumption of a mere 35 watts, this<br />

generates 2.5 times the light flux of a halogen bulb with 35 W<br />

output. The current generation of control units is only half the<br />

size of, and approximately one third lighter than, the first and<br />

second generation. The ignition electronics can now be<br />

completely integrated into the control unit. As a result of these<br />

control units, the lamp’s light is almost independent of voltage<br />

fluctuations in the ship’s electrical system, as the electronics<br />

operate the xenon bulbs at constant output.<br />

Xenon Lamp D2S<br />

Halogen bulb H3<br />

29

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