Ok then, this is starting make sense. Large slit it is.Here is a graph showing LED emissions (blue, green, yellow, red.) As you can see, LEDs peak at a given wavelength, but the bandwidth can be rather large. It is for this reason that Forward Width Half Maximum (FWHM) is often reported - this is the bandwidth where intensity is above 50% of maximum. Ocean Optics software OceanView should allow integration times of your choosing - microseconds to seconds.
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I promise not to bug you anymore - today



