This practice is relatively expensive and the most common lighting systems (high pressure sodium – HPS lamps) seem to be neither spectrally nor energetically optimal (Heuvelink et al., 2006; Marcelis et al., 2006).
This practice is relatively expensive and the most commonlighting systems (high pressure sodium – HPS lamps) seem to beneither spectrally nor energetically optimal (Heuvelink et al., 2006;Marcelis et al., 2006).