Table 1 Characteristics of organic light-emitting diode (OLED) lights used in this study

Illuminance, lx

13

91

158

Irradiance, W/m²

0.08

0.18

0.54

Chromaticity (x, y)

0.14, 0.16

0.33, 0.62

0.44, 0.41

Weighted mean wavelength, nm

483

555

594

PFD, μmol/m²/s

0.32

0.83

2.62

MSPFD, μmol/m²/s^a

0.23

0.14

0.38

Relative MSPFD, %

72

17

14