The Zahner CIMPS systems have several sources of light, one of which is a tuneable light source where the wavelength can be selected and scanned.
The other way is the use of the lamp. In the video below we show how the LEDs are readily changed. Please note that over 50 light sources are available for the lamp, operating 265 nm to 1550 nm. A full list of modular light-sources that fit into the lamp can be found by clicking the button.