I decided to stop using my 1st mh bulb. It's seen over a year of use and that's what I estimated it's effective lifetime was.
I read this info on longevity of the bulb. From the manufacturers specs.
Look specifically at the starting process of hid lamps.
How it says the electrodes have a small amount that gets vaporized every time it starts.
Well I compared the electrodes of the new mh bulb to the old one.
The new one had electrodes of a good length.
But the old mh bulb electrodes were short and almost down to the base .
This is where you find the electrodes.
And here is a closeup of each side.
So if you want to identify the life left on your bulbs.
Checking those electrodes is kind of like checking the electrodes on your vehicles spark plugs.
Sorry I don't have pics of the new one.
It was installed before I thought to take pics. Now it's installed and the tent is closed. I doubt I'll get a picture.
But if any of you all get new bulbs compare the electrodes to the old ones. You'll see what I'm talking about.