Abstract:
In this study, we studied a solution to improve the color quality and luminous efficiency of white LED by adding the red light composition. The effect of red light on the properties of white light at the CCT of 4500 K is investigated. Results show that the CRI value is changed depending on the added red light power. The maximum obtained CRI value is 96, which showed a significant improvement compared to the initial value of 71. The output luminous is increased which is proportional to the amount of added red light. The effect of red light on the change of CCT value, chromaticity coordinates, and Duv is also presented. The obtained result indicated that red LED mixed with pcW-LEDs is an efficient option that helps to improve the color quality and luminous efficiency of white LED.
Keywords: pcW-LEDs, Color quality, Luminous efficiency, High color rendering index
Recieved: 10.01.2025,
Revised: 15.03.2025,
Accepted: 11.04.2025
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