A LED1 high-intensity light source in one of three colours is supplied with the Chlorolab 2+ system. The different light sources that can be supplied are as follows:
- LED1/R: red LED with a peak wavelength of 627nm
- LED1/B: blue LED with a peak wavelength of 470nm
- LED1/W: white LED with a colour temperature of 4100K
The graph below shows the spectral output of each colour of the LED1 light source.
Light intensity adjustments are made automatically based on user-defined PFD tables within OxyTrace+ software. PFD tables consist of up to 20 individual steps allowing complex light response assays to be configured for automatic execution during a measurement.
Each of the LED1 light sources provide a maximum intensity of up to 2,000 µmol m-2 s-1 in DW2/2. Greater intensities are achievable by purchasing additional LED1 housings and an adapter which allows simultaneous automatic control of up to 3 LED1 light units.