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OfflineEM455
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Registered: 02/23/09
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Last seen: 2 years, 3 months
How close is too close?
    #338848 - 01/02/10 02:56 PM (6 years, 11 months ago)

Hi there guys! This is my first post in the growery (I've been posting in the shroomery for quite a while though)....This is the most stupid question ever, and it's probably been asked, but I used the search engine and didn't find much....I just wanted to know how close is too close when it comes to lights and pot plants? a reference in inches would be very helpful.....

I'm using a 250 watt metal halide for one plant (sometimes I'll only grow one plant and sometimes I'll grow 3, 4, or 5 but never more than 5 because of space limitations and low wattage, I say this because maybe the distance changes when you have more than one plant? so I don't have to ask this again)...I will be using a 250 watt HPS for flowering....

This is my first time growing weed :smile: thanks in advance for your help


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Invisiblecoda


Registered: 04/20/08
Posts: 4,734
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Re: How close is too close? [Re: EM455]
    #338855 - 01/02/10 03:05 PM (6 years, 11 months ago)

Hold your hand under the light, if it's uncomfortably warm where you place your hand lower it until it becomes comfortable.  Where that spot lies is minimum distance your plant tops should be from the light.

That being said, if you're using an aircooled hood or cool tube, you could probably keep your plant tops 6 inches to a foot away from your light source.


--------------------


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OfflineEM455
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Re: How close is too close? [Re: coda]
    #338867 - 01/02/10 03:31 PM (6 years, 11 months ago)

Thanks a lot for your answer!
I have a normal reflective hood only....isn't a foot a bit too far?
I guess I'll just do the hand thing, sounds like a great idea :smile:


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OfflineKaptKid
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Re: How close is too close? [Re: EM455]
    #338871 - 01/02/10 03:58 PM (6 years, 11 months ago)

I've run a 1000 watt light 1 ft from my plants. No air cooled hood but a fan running right on the light.

The closer the better as long as you do not burn the plant

What coda said is the best rule of thumb.


--------------------
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InvisibleFurrowedBrowM
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Re: How close is too close? [Re: coda]
    #338882 - 01/02/10 04:45 PM (6 years, 11 months ago)

Quote:

coda said:
Hold your hand under the light, if it's uncomfortably warm where you place your hand lower it until it becomes comfortable.  Where that spot lies is minimum distance your plant tops should be from the light.

That being said, if you're using an aircooled hood or cool tube, you could probably keep your plant tops 6 inches to a foot away from your light source.




:thumbup:


--------------------





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InvisibleMagashM
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Registered: 04/21/08
Posts: 6,498
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Re: How close is too close? [Re: EM455]
    #338918 - 01/02/10 06:23 PM (6 years, 11 months ago)

Quote:

EM455 said:
Hi there guys! This is my first post in the growery (I've been posting in the shroomery for quite a while though)....This is the most stupid question ever, and it's probably been asked, but I used the search engine and didn't find much....I just wanted to know how close is too close when it comes to lights and pot plants? a reference in inches would be very helpful.....

I'm using a 250 watt metal halide for one plant (sometimes I'll only grow one plant and sometimes I'll grow 3, 4, or 5 but never more than 5 because of space limitations and low wattage, I say this because maybe the distance changes when you have more than one plant? so I don't have to ask this again)...I will be using a 250 watt HPS for flowering....

This is my first time growing weed :smile: thanks in advance for your help




If your serious about growing no question is stupid.


--------------------
All creatures tremble when faced with violence. All creatures fear death, all love life. If we can only see ourselves in others, then how could we possibly hurt another creature?


:growingweed: Join us at the Growery! :growingweed:


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OfflineEM455
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Registered: 02/23/09
Posts: 37
Last seen: 2 years, 3 months
Re: How close is too close? [Re: Magash]
    #341893 - 01/06/10 10:47 PM (6 years, 10 months ago)

Thank you guys! you are awesome! and yes I think i'm serious about growing :smile:


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