OK, just thinking here. I changed my 400w DE bulbs for Hamilton 14Ks about 6 months ago. The bulbs are already "yellowing", and when I asked Hamilton about it, they indicated that 9 months is typical... It seems like maybe the DE technology for 400w just isn't there?

That got me thinking (uh oh). I have Coralvue pendants that are so-so. If I'm going to have to change out bulbs, and the bulbs are $100 a pop (X3...), would I be better, in the long run, to replace the reflectors with Luminarc reflectors and go to a Mogul/SE bulb? Would I expect a bit longer life out of the mogul bulbs?

TIA