LED Sources
Modern LEDs are ideal sources for flash photolysis and luminescence excitation.
We computer-control their on-off activity with sub-microsecond precision with nearly limitless scripted options possible.
The bandpass of an LED can be refined by adding a filter.
Exchanging one LED with a second takes moments and no tools. A given laboratory might own two, three, or more LED tubes to support an array of experiments.
Is a scanning monochromator better than an LED? Yes for scanning. No for stability, speed, intensity, and economy.