convert hps to cfl

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Posted by mrkyle (My Page) on

Fri, Jun 26, 09 at 14:10

Can a cfl grow bulb fit in a hps fixture, and will it work? For instance, I have a 400 watt ballast, can I put a 200 or 300 watt cfl grow light in the socket and have it work normally? If not, what alternatives are there (besides buying a new ballast).

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RE: convert hps to cfl

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Posted by klinko16 4a (My Page) on
Fri, Jun 26, 09 at 19:20

You have a perfect set up. Now buy yourself a ceramic metal halide lamp (you will have to search the internet for an online supplier). A 400w CERAMIC METAL HALIDE, (not any other kind of metal halide) will put out a spectrum that is just like the sun, and your plants will not only look fantastic, they will grow fantastic because this lamp has an extremely high PAR rating, and plants grow beautifully with it. Mainly pot growers use it, because we insist on only the best weed, to satisfy our stringent requirements. However, all plants grow equally well with CMH. Look up lermer, he is a member here, and is happy to communicate with members to let them in on the benefits of CMH. This lamp has not been promoted very heavily, because there is no huge profit margin in selling it, compared to the profits of some of the other regular MH lamps.

RE: convert hps to cfl

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Posted by wordwiz (My Page) on
Sat, Jun 27, 09 at 14:41

Every CFL bulb I've seen fits in a regular light socket, no special ballast needed.

Mike

RE: convert hps to cfl

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Posted by nygardener z6 New York (My Page) on
Tue, Jun 30, 09 at 22:36

NO. HPS fixtures are for HPS bulbs of the correct wattage only. They are NOT for metal halide bulbs, and they are NOT for compact fluorescents. They are also not for HPS bulbs of a different wattage!

Here is a link that might be useful: Grow-Light Primer

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