Table 2 Distances between the as-prepared LED lights and the ideal light in CIE chromaticity coordinates and photoelectric conversion efficiency.

From: Improving “color rendering” of LED lighting for the growth of lettuce

LED light

CIE (x, y)

Distances in chromaticity coordinates

Photoelectric conversion efficiency

SB

0.1548, 0.0239

0.240

0.470

BRB

0.3446, 0.1353

0.115

0.299

RYB

0.4448, 0.2967

0.179

0.273

BW

0.3814, 0.3594

0.165

0.336

SR

0.7096, 0.2787

0.433

0.399

SRB

0.2631, 0.0861

0.144

0.325

NW

0.3270, 0.3160

0.0989

0.386