Figure 3
From: Efficacy of violet–blue light to inactive microbial growth
Schematic representation of the experimental setting. The VBL405 LED light sources are located on the top of the structure. Petri dishes are centered in three positions (red circles): (1) 2 m under one lamp; (2) 3 m under the light sources, midway between them; (3) 3 m under the other lamp.
