three days later and they are still closed. I noticed that they close even more by the end of the day after the MHs have been on for about 6 hrs. Today, I'm not turning on the MHs all togather, just the actenics, to see if they look better when I get back home. I might but back the one old bulb that was still working with one of the new ones to see if that helps with the reansition. Any Ideas?