Philips makes very good bulbs. They even make a LED replacement for HPS and MH fixtures. Just pop it in and go.
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I used to use the old Phillips 4000k Retrowhites 400w (before most knew what CMH was and growers would laugh at using "white" light for flowering...jokes on them now hugh ). They were driven in magnetic HPS ballasts.. I actually kept all of my ballasts, hoods and have 3 of the bulbs left just in case I ever expand my grow area, I would love to use them in combo with LED Phillips CMH are definitely the best out there for CMH. I personally love their spectrum