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    Which lamp has the best Colour Rendering Index (CRI)?
    Question

    Which lamp has the best Colour Rendering Index (CRI)?

    A.

    Fluorescent

    B.

    Incandescent

    C.

    LED

    D.

    High pressure sodium vapour

    Correct option is B

    · Incandescent lap has the best color rendering index (CRI).
    · CRI is a common reference source used to measure the 'real' color of an object compared to either incandescent light or daylight.
    · A measure of the ability of a light source to reflect 'naturally'.
    · Color rendering index (CRI) is measured as a number between 0-100.
    · At 0 all colors are equal. A CRI of 100 reflects the true colors of the object.
    · Incandescent and halogen light sources have a CRI of 100.
    · A light source with a CRI above 90 is considered excellent.


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