Glossary | Alza.de

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Catalogue

Glossary

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Energy class

Energy class of an appliance determines the amount of energy consumed by the electric appliance used within the European Union. Energy classes are defined by the EU and individual members of countries incorporate them into their legislation. From September 21, 2021, a new energy class ranging from A to G is applicable.

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Energy consumption

The energy consumption of light fittings. The consumption of modern energy-efficient lights are measured in watts.

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Impedance

Bei den Parametern von Kopfhörern stoßen wir auf den Begriff Impedanz. Dies ist ein nicht zu unterschätzender Parameter. Er drückt im Grunde aus, wie gut - oder wie schlecht - sich Ihre Kopfhörer mit der Tonquelle, dem Handy, Player oder dem Empfänger verstehen werden.

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Base

Bases are the part of lamp bulbs allowing the mechanical fixing and electrical connection with the light source. Based on the type of attachment, there are screw, bayonet, and bi-pin bases, all of which are available in various sizes. Different base types are not compatible with each other.

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Recommended viewing distance for Widescreen TVs

Recommended TV viewing distance is an important, yet often overlooked parameter when choosing a new TV. Optimum diagonal size ensures that you will enjoy full visual immersion and perfect details when watching your Ultra HD TV. Check out our chart to choose the right TV size for your room and budget.

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CMOS Sensor

Camera sensors (Chips) record image information and send it to the processor. Camera-sensor technology is divided into two types: CMOS and CCD.

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Memory Cards

Memory cards are the medium on which images and videos are stored. Cards can be chosen by type, capacity, writing speed and brand.

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Camera Sensors

Located behind the lens, the sensor (sensor chip) captures the image and is one of the most important elements of a camera. You can imagine it as a removable plate with millions of points (pixels), which records light intensity and other image information (such as colour), before sending it to the processor for further processing.

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