FIELD: electricity.
SUBSTANCE: invention relates to the field of lighting engineering. A light-emitting diode light source (100) consists of an array (110) of red LEDs, an array (120) of blue LEDs covered with a luminophor, a colour point from mixed light coming from the array (120) of blue LEDs covered with the luminophor is within the limit range of a quadrangle of CIE chromaticity diagram, where coordinates of the quadrangle apexes are (0.375, 0.427), (0.390, 0.456), (0.366, 0.430), (0.38, 0.46) respectively, at that LEDs transient temperature for the array (120) of blue LEDs covered with the luminophor and array (110) of red LEDs is practically equal to room temperature and the ratio of lumen output of the array (120) of blue LEDs covered with the luminophor in regard to lumen output of the array (110) of red LEDs varies within the range of 4:1 up to 1.5:1.
EFFECT: increased efficiency of emitted warm white light.
10 cl, 4 dwg
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