dog, I read a lot of your posts and I can tell that you are not very good with English. Just helpin' you out, here's what your post should have been:
"Hi to you all! Does anyone know if you can tell when an HPS bulb is near the end of its life? I'm asking because I was given two 400w bulbs that are supposedly six weeks old. How can I tell if it's true??"
I like learning new languages, and I like to learn when I'm making mistakes. If you don't care then so be it!