3-Vaihekiskon L-kulma - XTS34-3 VALKOINEN
L-angle piece XTS34 for 3-phase rail, White.
Note: Product on order, not in stock.
This 66 mm x 66 mm L corner piece for 3-phase rail is intended for installation on an in-ceiling rail or surface mounting. So with this piece you make a 90 degree angle for the 3-phase rail, but check the correct model of L-angle pieces as they cannot be used the wrong way round. Order the 3-phase rail and power supply separately, as well as the end plug.
- 3-phase rail
- Finnish product
- L- corner joint between two profiles
- Nordic Aluminum, NOKIA
- White
- Delivery status In Stock
- Brand Ledstore
- Breadcrumbs Home LED accessories3-Phase Track3-phase track componentsL-corner 3-Vaihekiskon L-kulma - XTS34-3 VALKOINEN
- Category L-corner
- SKU TRACK-XTS34-3-L-W
- Installation method Surface mounting
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WHAT IS CRI, THE COLOUR RENDERING INDEX
High quality LED lights also have a high colour rendering index, or CRI. A good colour rendering index (CRI) for home use is above 90, and nowadays many market lights are unfortunately closer to 80.
CRI tells you how well an LED light displays colours as they should be. For designers and architects, as well as interior designers, it should be one of the most important considerations. Make sure the lighting is perfect so that your artwork is what it is meant to be.
Colour rendering index
The colour rendering index is expressed as a number on a scale from zero to 100, where 0 = no colour rendering and 100 = full colour rendering. The colour rendering index of LED lights is also known as Ra, which is measured on a smaller scale than CRI. This Ra value does not include red tones or skin tones, for example, so it is a 'glossed' figure for the true quality of an LED light.
RA value
The Ra value measures the reproduction of colours using eight different reference colours. CRI takes into account the wider (15) wavelength range, including reds and other warm colours.
The Ra value is calculated by cutting the wavelength range, weighting the blue and violet tones, and calculating the weighted average of R numbers 1-8.
Excluded from the Ra value are, for example, the colour rendering of bright reds, yellows and greens, and shades close to skin tone. These are described by R-values between 9 and 15. The following is a picture of a measurement result that easily confuses the consumer.
This measurement is from a 9W CCT Led spot
Read more on this topic:
Colour rendering of LEDs - What is the difference between CRI and Ra-value?