LED R7s bulb, 118mm, high CRI93, 10W, 3000K
R7s LED lamp 3000K, dimmable
LedStore's high quality R7s LED lamp with 3000K warm colour temperature. Colour rendering index (CRI) of over 93!
Energy savings are to be expected as one 10W bulb is equivalent to 50W halogen with the same light output.
R7s LED 3000K light output is 982 lumens.
This dimmable R7s led bulb has 360 degree light opening. The bulb is 118 mm long and 15 mm in diameter.
- 15mm wide
- Dimmable
- Excellent light quality CRI93!
- Replaces old halogens
- Warm 3000K
- Delivery status In Stock
- Brand Ledstore
- Breadcrumbs Home LED bulbsR7s bulbsR7s warm 3000K LED R7s bulb, 118mm, high CRI93, 10W, 3000K
- Category R7s warm 3000K
- SKU R7s-10W-3000
- Lumen 985
- Change Dimmable, light angle 360
- Wattage 10
- Colour rendering (CRI ±3) 93
- IP class IP21
- Colour White
- 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?