I guess befor people get the wrong Idea I better mention this.. this is a electronic ballast not a tar (people are probably going "Duhhh tell us something I don't know now") I say this because that just by virtue of switching to a electronic ballast from a tar ballast your bulb life will be lengthened..
so when people say VHO bulbs only last 6 months on a TAR ballast on a WH (or other quality electronic ballast, they could last 1 year or more.
I have been testing the light output of T8 24" hagen power glows over the l;ast two years and they have only lost 15% of there intensity in 2 years.. I atribute this to useing a electronic ballast. the bonus was that I also got 10% more light by switching to the electronic ballast over the tar one.. so if you realy read into this on a set of two year old bulbs I am only getting 5% lower output that a brand new set on a tar ballast.
now will the VHO last to this extream? I am not sure but I have been doing measurments on my two bulbs and I am going to plot them untill they need to be changed..
Steve
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 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*
Some strive to be perfect.... I just strive.
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