| My spectrometer arrived today. I only had time for a quick look though. Since I work all this week and the weekend I may not be able to do much more than that for the next week to 10 days.
Currently the 1 new bulb does appear slightly bluer than the old bulbs. All I can say about the spectra is that it appears that all spectral lines are still present, but until I can photo them and compare side-by-side it will be tough to tell if there has been a noticeable decrease in the intensity of any of the spectral lines.
Allen | 
