Color Temperature Tunable White-Light LED Cluster with Extrahigh Color Rendering Index

Figure 3

Predicted and measured SPDs of the white light-LED cluster at different CCTs: (a) CCT = 2719 K; (b) CCT = 3028 K; (c) CCT = 3458 K; (d) CCT = 3983 K; (e) CCT = 4537 K; (f) CCT = 5012 K; (g) CCT = 5723 K; (h) CCT = 6497 K.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)