What to do with old MH fixtures...

So I acquired 3 - 400w MH fixtures. The ones you see in a warehouse. I paid nothing for them, but they all work and have bulbs in them. I'm sure they ran the bulbs in them to death, these bulbs look pretty old and don't produce much light anymore.

They have the old magnetic ballasts in them. I was thinking/hoping I could run some CMH bulbs in them. Can this be done? If so, can someone send me a link to some bulbs that would work for this? They have the twist sockets in them.

Thanks

That's not a problem at all, cmh bulbs will work fine off them and they should be using the standard E40 socket

I use to run 330 watt Philips master color cdm's in my 400 watt high bays, but it's getting harder to find those bulbs, also those are mogul base not twist. Pull one of the bulbs out and see if you can read the bulb type off of one of them.

There is a enclosed reflector type 400w cmh at HTG supply that runs off the mag ballast.

http://www.htgsupply.com/products/ge-400-watt-ceramic-light-bulb-cmh-lamp

MichiganMedGrower said:

There is a enclosed reflector type 400w cmh at HTG supply that runs off the mag ballast.

http://www.htgsupply.com/products/ge-400-watt-ceramic-light-bulb-cmh-lamp

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that only runs on a hps ballast. But good link, there is lots of goodies on their website.

muleface said:

that only runs on a hps ballast. But good link, there is lots of goodies on their website.

Click to expand...

Sorry. I missed that.