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Thread: Metal halide

  1. #1
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    I got the metal halide fixture yesturday for $400. It's suspended 6' above my plants within a 6' by 6' growing area. I hope they'll grow better now [img]http://www.**********.com/iB_html/non-cgi/emoticons/smile.gif[/img] .

  2. #2
    swords's Avatar
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    What kind of MH did you get? How many watts, bulb color temp, etc?

  3. #3
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    I got a "Hydro Farm" 1000 watt metal halide fixture (with a heavy a** ballast) that came with a bulb that combines metal halide and hps spectrums. It's from "AGROSUN" and it puts out 118,500 lumens, and a lot of heat. I needed to get another humidifier just to keep the room in the 50% humidity range [img]http://www.**********.com/iB_html/non-cgi/emoticons/confused.gif[/img] . Seems to work really well though [img]http://www.**********.com/iB_html/non-cgi/emoticons/smile.gif[/img] . If it only had less yellow in the light though...

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    swords's Avatar
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    I just got the new Marine Depot catalog and it has some good looking MH bulbs. None are "cheap" though, as you already know but if you would like a different color check out their online selection! I'm going to be using an 250W Iwasaki 6500K MH bulb over my lowland grow chamber. This bulb has a rather decent color but when I need to buy a replacement I might go for a 10,000K to get a crisper/whiter slightly bluish color.

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    I think you might find the 10k just slightly too blue for plant growth swords. I really only like them for my reef acounts.
    Id say stick with the 6500k.
    Say Ragnarok Id suggest you look into an air cooled hood for that. If Im not mistaken is there not a 4" hole you can punch out on either side of the Hydrofarm hoods?
    Then all youd need would be a blower and a peice of glass. And some flexible ducting and appropriately sized hose clamps.
    Running an air cooled lamp will give you a much greater ability to control the humidity with less effort.

    Peace
    Peace

  6. #6
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    Thanks khai, I'll look into that. As it stands, I'm trying to keep the temps 80F and bellow during the day, but the darn light is just so hot [img]http://www.**********.com/iB_html/non-cgi/emoticons/mad.gif[/img] . So, I open my windows here in Alaska (20F outside), and that helps a little, but it's still too hot, and is assisting in draining the humidity, so I can't open it too far. With TWO cool mist humidifiers running in a 12' square room, I'm barely retaining 50% humidity. It can't go on like this....

  7. #7
    Nepenthes Specialist nepenthes gracilis's Avatar
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    I'd say go spend $40.00 for an ultrasonic humidifier. That should clear up ALL humidity issues.

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    Wow. Talk about bringing the sun up to Alaska with you... Can you tan in that room?

    Um, Seriously now though... How much will that bring your hydro bill up? How many plants are you using this light for? I assume it covers the entire room...

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