Color Rendering of LED
The CRI of white LED is over 75, while that of well-encapsulated LED reaching 98, which makes the color of the objects lightened appear natural.
The CRI of HPS is much weaker, with a CRI less of 23, and the objects lightened appear reddish.
Color Temperature of LED & HPS
The color temperature of LED ranging from 2600k to 10000k.According to different functional lumination requirements, there are warm white, pure white and cold white for option.
The color temperature of HPS ranging from 1950k to 2250k.With a reddish light, it makes people feel warm.
Color temperature is a characteristic of visible light that has important applications in lighting, photography, videography, publishing, and other fields. The color temperature of a light source is determined by comparing its chromaticity with that of an ideal black-body radiator. The temperature (usually measured in kelvins(K) ) at which the heated black-body radiator matches the color of the light source is that source's color temperature; for a black body source, it is directly related to Planck's law and Wien's displacement law.
Counterintuitively, higher color temperatures (5000 K or more) are "cool" (green–blue) colors, and lower color temperatures (2700–3000 K) "warm" (yellow–red) colors.
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