I posted this on the HID old school lights board that that one is not very active any more and most people are using Autocobs it seems, for some reason, like they are great lights. I figured this question will get more notice on BigsmO's board since most of you are probably ex HPS "users".
For you ex HPS users, can you say you have replaced older bulbs in lamps say during a flowering phase and you really noticed an improvement? I have some bulbs that I'm not certain were new when I bought them and probably had been used for sure. And I've put a lot of hours on them over the last 6 months. And I'm flowering some plants now, and thinking about replacing the bulbs and wondering if I'll notice an improvement.
For you ex HPS users, can you say you have replaced older bulbs in lamps say during a flowering phase and you really noticed an improvement? I have some bulbs that I'm not certain were new when I bought them and probably had been used for sure. And I've put a lot of hours on them over the last 6 months. And I'm flowering some plants now, and thinking about replacing the bulbs and wondering if I'll notice an improvement.