Quote Originally Posted by dakar View Post
I've found that the length of time a halide runs has very little effect on its life expectancy; instead the number of times it's actually fired will have a more dramtic effect.


I have been thinking about this statement this afternoon and have another question.

How is it possible that "run time" is less of an issue than the number of "starts"? As I understand it, after about a year or so, the light output shifts towards the red zone and requires bulb replacement. It would seem to me that the more TIME the bulb is ON, the sooner the "red shift" will hit. Correct?