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View Full Version : Mh conervsion bulb runnin on hps ballast



bluecraze08
03-30-2006, 05:32 AM
so if im correct you can run a 400w mh conversion bulb on a 400w hps grow light system with a ballast??? this is what im thinkin about buying...will it work ok??? http://cgi.ebay.com/400W-HPS-MH-CONVERSION-Bat-Wing-Grow-Light_W0QQitemZ7755230101QQcategoryZ42225QQrdZ1QQc mdZViewItem

Zandor
03-30-2006, 04:53 PM
That will work but if you can afford it try to find an air-cooled hood. It would save you heat and for most growers that is an issue.

Easy Roller
03-31-2006, 11:56 PM
Are you saying you can put a conversion bulb [MH] into an ordinary HPS ballast??

I thought it was the Ballast that needed to be the special conversion type .i.e..A Conversion ballast that can take either an MH or HPS bulb?

???

Please can someone clear this up for me coz it could be dangerous !

busteruk7
04-01-2006, 01:30 AM
got me there i thought ya needed a difrent balasts for the mh and hps
wouldent it blow the bulb or fuck the ballast

Zandor
04-01-2006, 05:55 PM
They make switchable ballast yes. They also make conversion bulbs so you can run a MH light in a HPS ballast. As well as the other way around. They have been on the market for years, it's nothing new.

busteruk7
04-01-2006, 06:02 PM
ah right i dident know i was wanting to try something with a bit more power im only using a 200w envirolite at the moment:)

betterhomesandgarden
04-01-2006, 07:32 PM
Thats not a bad deal. I would go with a Hortilux bulb (430w or 400w hps) though, one bulb is all you need. Best of both worlds IMO.

Easy Roller
04-01-2006, 08:45 PM
They make switchable ballast yes. They also make conversion bulbs so you can run a MH light in a HPS ballast. As well as the other way around. They have been on the market for years, it's nothing new.


Wow!

That's good news....I'm thinking of having two rooms...each with interchangable [MH to HPS] lights....So I won't have to move the plants and thus ...won't have to disturb the roots too much and can veg for longer [ebb/flow you see]

Anyway that is news to me..thanks:thumbsup: