DV3092 Chambers
Conviron E15s in DV3092D had programmable fluorescent and incandescent until mid-September 2023. It was then retrofitted with Fluence VYPR PhysioSpec Broad R LED lights. Fluence RAY44 Pfr was added to E15.
Current LED light fixture configuration for 3092-01GC, -02GC, -03GC and -04GC:
Spectral Composition of current light fixtures in 3092-01GC and 03GC:
Figure 1. Light Composition (%) of 3092-01GC and 3092-03GC Across Different Light Set Points. This bar graph shows the distribution of light wavelengths (ranging from 400 to 700 nm) used in the light setups for two chambers, 3092-01GC and 3092-03GC. The light was adjusted using specific combinations of white and far-red light, resulting in unique compositions. Certain wavelengths are not displayed due to their minimal contributions to the overall light spectrum. The y-axis indicates the amount of light available to plants, measured as PPFD (µmol/m²/s), which is a standard unit for assessing plant light exposure. Additionally, wavelengths at the UV and Far-Red (FR) regions were measured which range from 380 to 780nm.
Click here to see the actual PPFD values (400 to 700nm), and PFD values (380 to 780nm).You will also be able to look at the smaller PFD values that were not displayed, and their wavelength ranges (nm).
Abbreviations: W = White Light, PFD = Photo flux density, PPFD = Photosynthetic photon flux density, UV = Ultra violet, B = Blue, G = Green, R = Red, FR = Far red/ Far red Light.
Spectral Composition of current light fixtures in 3092-02GC and 04GC:
Figure 2. Light Composition (%) of 3092-02GC and 3092-04GC Across Different Light Set Points. This bar graph shows the distribution of light wavelengths (ranging from 400 to 700 nm) used in the light setups for two chambers, 3092-01GC and 3092-03GC. The light was adjusted using specific combinations of white and far-red light, resulting in unique compositions. Certain wavelengths are not displayed due to their minimal contributions to the overall light spectrum. The y-axis indicates the amount of light available to plants, measured as PPFD (µmol/m²/s), which is a standard unit for assessing plant light exposure. Additionally, wavelengths at the UV and Far-Red (FR) regions were measured which range from 380 to 780nm.
Click here to see the actual PPFD values (400 to 700nm), and PFD values (380 to 780nm).You will also be able to look at the smaller PFD values that were not displayed, and their wavelength ranges (nm).
Abbreviations: W = White Light, PFD = Photo flux density, PPFD = Photosynthetic photon flux density, UV = Ultra violet, B = Blue, G = Green, R = Red, FR = Far red/ Far red Light.
Edited on 2024-06-25
Spectrum of broad spectrum LED fitted in 2023
Figure 3. The graph above shows the new spectral composition of 3092 growth chambers from 380-780nm.
Spectrum of original incandescent and fluorescent light fixture
Figure 4. The graph above shows the old spectral composition of 3092 growth chambers from 380-780nm.