€ 10.97 VAT. 25.5%
€ 12.90
LED bulb E27 — CLASSIC, clear, high CRI94, dimmable 6W, 4000K
In stock at 580 pcs
SKU#: E27-classic-HIGH-CRI-4000
4.7 / 5 (4)
Dimmable, real-looking incandescent LED E27 bulb 6W, easily equivalent to a 60W incandescent bulb with 500 lumens. The bulb has a stunning colour rendering index (CRI) of 94! The light has 3000K (2700K), 3500K and 4000K colour tones. The light is of very high quality thanks to the high colour rendering index!
- 4000K neutral white
- 6W clear glass dome
- Great light quality CRI94!
- Long life 35 000 hours, dimmable
- Replaces old E27 60W round incandescent bulbs
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€ 13.10
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Right of return for 14 days
- Delivery status In Stock
- Brand Ledstore
- Breadcrumbs Home By featuresKelvin4000K - 6000K LED bulb E27 — CLASSIC, clear, high CRI94, dimmable 6W, 4000K
- Category 4000K - 6000K
- SKU E27-classic-HIGH-CRI-4000
- Lumen 500
- Change Dimmable
- Wattage 6
- Colour temperature (K) 4000
- Colour rendering (CRI ±3) 94
- IP class IP21
- Immennys Dimmable
- Guarantee (year) 3 years
- Life span 35000
- Approval CE, RoHS
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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?