Herbert Bernstädt

Herbert Bernstädt

Author
Dipl.-Ing. (FH) Herbert Bernstädt works for Adam Hall in the development department as a lighting specialist. He began in 1987 as a technician in the theater followed by other experiences chief electrician, technical director, development engineer for stage machinery and product managers in various companies. Incidentally, he enjoys reputation through his articles in the Production Partner, as a lecturer or with his knowledge transfer page www.hbernstaedt.de.
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DTW spotlights from Cameo

A new spotlight range has the suffix DTW. But what do these initials mean? DTW stands for dim-to-warm. This technology is used with LED lamps to simulate the characteristics of halogen lamps, whereby the light emitted becomes increasingly warm as they are dimmed. But why do we need a change of colour temperature when dimming?

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What is the Significance of CRI?

Amongst the technical data for Cameo spotlights you can find values such as “CRI >90”. But what does CRI actually mean? – And what does the value >90 tell us? Definition CRI is the abbreviation for “Colour Rendering Index”. This is used to describe how well a spotlight illuminates the colours on a flat surface.