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Philips Lighting LED Products-Customer Service FAQ
9. White light and colour
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White light and colour
How to mix them How to use colour well
How is white light produced by LEDs?
What are tuneable white LEDs?
How is coloured light produced from LEDs?
Why do LEDs produce more vibrant and saturated colours than conventional lamps?
What does RGB LED mean?
What are the different types of RGB LEDs?
How is Amber produced?
What are AlGaAs, AlInGap and InGaN?
What does correlated colour temperature, CCT, mean?
What defines the colour temperature of a white LED?
What are the standard comparisons used to evaluate the colour quality of light sources?
In what contexts do R-9 values of CRI of LED lamps become important?
What is the SPD of a light source?
What is a MacAdam Ellipse?
What quality process guarantees the consistency of the colour appearance of LEDs?
What other parameters can be used to evaluate the colour quality of light?
Why do some white LEDs start emitting an almost bluish tone over time?
Why has the colour appearance of the LEDs changed after some period of use?
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How do LEDs produce light
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