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Old 03-12-2009, 06:58 PM
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Default 400 watt MH cool tube
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Ok so my bulbs came in today and I noticed that the MH bulb has a much wider diameter that the HPS.

Actually the diameter of the MH is 5"

Now I definitely plan to DIY a cool tube, because the premade ones are very expensive.

So where do you a find a glass tube with at least a 6" diameter that won't break your pocket

All the DIY cool tubes messages I have read talk about HPS.

What about MH 400 watt
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Old 03-12-2009, 07:04 PM
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ive actually found plexiglass style ones on ebay for...not too cheap -- but glass im not sure about.

and youre fine with the MH bulb -- its the concept of removing the heat, not amplifying the HPS output..you of course get into the pros and cons of MH and HPS, to which i side with HPS -- but regardless, the MH will function the same...

hope this helps
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Old 03-12-2009, 07:10 PM
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ive actually found plexiglass style ones on ebay for...not too cheap -- but glass im not sure about.

and youre fine with the MH bulb -- its the concept of removing the heat, not amplifying the HPS output..you of course get into the pros and cons of MH and HPS, to which i side with HPS -- but regardless, the MH will function the same...

hope this helps
So let me get this straight are you saying to just grow with a HPs and forget about the MH
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Old 03-12-2009, 08:28 PM
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get a hortilux blue MH and forget your other bulbs.
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Old 03-13-2009, 05:25 AM
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get a hortilux blue MH and forget your other bulbs.
Oh yeah just go out and spend more money, Why didn't I think of that
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Old 03-13-2009, 06:05 AM
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You can go to Michael's in the candle section and there is a glass tube thats pretty wide there. Maybe like 6 inches or so. Its only $7 and some change. Be careful because its not as thick as the pyrex ones and I broke one before I got it home. Than again.... I broke my first pyrex as well. lol

and check my sig for a simple cool tube design. I added an update to it a couple days ago, so you have 2 different ways to make it. Good Luck!
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Old 03-13-2009, 09:08 AM
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Oh yeah just go out and spend more money, Why didn't I think of that

That is what you are doing retard.
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Old 03-13-2009, 09:29 AM
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Yea you have to spend money to make money its all your chioce though personaly go to htgsuply.com and check out there killer deals on lights and cool tubes
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Old 03-13-2009, 10:39 AM
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cool tube for 60 shipped that will fit your bulb!!


http://cgi.ebay.com/400-Watt-HPS-Met...3%3A1|294%3A50
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Old 03-13-2009, 03:06 PM
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Originally Posted by relativeood View Post
That is what you are doing retard.
No need for name calling

I spent 30 dollars for these MH bulbs, and plan to use them

If I run out and just buy a MH bulb with a smaller diameter, then the ones I bought are wasted.

I asked for advice as to where to find a cool tube that can fit these 5" diameter bulbs
 
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400, cool, tube, watt

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