Is all LED the same in terms of Color Quality?
The short answer is no!
There are a couple of metrics that can provide you with data on how good your LED's are.
There are a couple of metrics that can provide you with data on how good your LED's are.
To determine the color quality of an LED, several key terms and metrics are used to evaluate its performance. These include Color Rendering Index (CRI), Correlated Color Temperature (CCT), chromaticity coordinates, and other advanced measures like TM-30. Here’s a breakdown of each:
Color Rendering Index (CRI) (Basic level)
CRI measures how accurately a light source renders colors of objects compared to a reference source, such as daylight or an incandescent bulb. The CRI scale ranges from 0 to 100, where a higher value indicates better color rendering. A CRI of 80 or above is generally recommended for indoor lighting to ensure colors appear natural and true to life.
PS : In todays market, you can get CRI80 for basic quality, all the way up to CRI98, which CRI to get depends on how much you place importances on the colors projecting onto your laminates,floorings,furniture etc.
PS : In todays market, you can get CRI80 for basic quality, all the way up to CRI98, which CRI to get depends on how much you place importances on the colors projecting onto your laminates,floorings,furniture etc.
- R9 Value: Within CRI, R9 specifically measures how accurately a light source renders saturated red colors. A high R9 value is crucial in applications where accurate red tones are important, such as in retail, healthcare, and art galleries.
TM-30 (Advanced level)
TM-30 is a more comprehensive method for evaluating color rendering, offering two key metrics:
- Fidelity Index (Rf): Measures the similarity of a test light source to a reference source in terms of color accuracy.
- Gamut Index (Rg): Specifies the color range, indicating whether the light source emphasizes or deemphasizes certain hues compared to the reference.
Correlated Color Temperature (CCT)
CCT specifies the perceived color of light emitted by an LED, described in Kelvin (K). It indicates whether the light appears warm (yellowish) or cool (bluish). Common CCT values include:
- 3000K (Warm White): Creates a cozy and inviting atmosphere.
- 4000K (Cool White): Suitable for general-purpose lighting.
- 6000K (Cool Daylight): Provides a bright, daylight-like appearance, often used in task lighting.
PS : We carry some very specialized CCT like 3500K, or even 2800K, we can specially arrange for the factory to produce it for you! if you are pairing your lights with a dimmer switch, or even smart, you can even consider the use of Dim-To-Warm (1800K-3000K) or Tunable White(2800K-6500K) options to allow yourself the ultimate control in your lighting needs!
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Color Consistency
Color consistency refers to the uniformity of color output among different LED products or over time for a single product. It is measured using Standard Deviation of Color Matching (SDCM), also known as MacAdam ellipses. A lower SDCM value indicates better color consistency, with SDCM 3 or less generally considered acceptable for most applications
Summary
Base on the above knowledge, you will want to seriously consider getting a high CRI lamp, for a very accurate, true to color shine to bring out the "color" from every single object in the house.
You probably will have a understanding that a 3000K lighting fixtures from different source will most likely result in a inconsistent color tone and that is something we definitely will want to avoid in a single space.