Property:Description

This is a property of type Text.

Usage1338

Filter<p>The <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Property_page/Filter">search filter</a> allows the inclusion of <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Query_expressions">query expressions</a> such as <code>~</code> or <code>!</code>. The selected <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Query_engine">query engine</a> might also support case insensitive matching or other short expressions like:</p><ul><li><code>in:</code> result should include the term, e.g. '<code>in:Foo</code>'</li></ul><ul><li><code>not:</code> result should to not include the term, e.g. '<code>not:Bar</code>'</li></ul>

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L

Light-emitting diode +

A '''light-emitting diode''' (LED) is a light source (semiconductor), used in many every-day applications and specifically in [[fluorometry]]. LEDs are available for specific spectral ranges across wavelengths in the [http://en.wikipedia.org/wiki/Light-emitting_diode#Colors_and_materials visible, ultraviolet, and infrared range]. +