Fluorescent tubes and halides tend to have shifts in color spectrum with age, also shifts in luminosity.
LEDs driven at 100%, tend to develop those traits after 7 or so years. If overdriven, much quicker of course. Overall, LEDs have a much sharper drop off in spectrum due to the way their designed. Not sure if you'll see much of a spectrum swing, but you will see an intensity/luminosity swing with age.