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 Trey3993
Stranger
Registered: 12/10/10
Posts: 15
Last seen: 12 years, 1 month
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 90w led vs 400w HID 
#642142 - 10/28/12 04:39 PM (12 years, 1 month ago) |
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Ok, I recently set up my first grow room. It is 3x3x5 with a single DWC hydro system. It currently has one seedling under two 43w cfls that are lowered to about 5 inches abouve the plant. Im ready to invest in a light and Ive seen on ebay that I can get a 90w LED and a 400w ballast hood combo with MH and HPS bulbs for around the same price. What do you guys think? Should I use the cfls with the new light? Please let me know what you all think.
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 Hawksresurrection
Registered: 12/04/08
Posts: 13,464
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Re: 90w led vs 400w HID [Re: Trey3993]
#642150 - 10/28/12 05:53 PM (12 years, 1 month ago) |
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400 watt FTW. The 90 watt LED wont even come close to covering the square feet of your grow area.
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Dude she isn't as young as she use to be.
-niteowl
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resincoatedlungs
Brickweed Aficionado
Registered: 09/05/12
Posts: 503
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I wanted to go the LED route, quickly realized that they've got a while before they catch up with the HIDs.
Quote:
Should I use the cfls with the new light?
I'm DEFINITELY no expert on the subject, but as long as you can keep heat down, I'd think that you should use CFLs to light the lower portions of the plants. The more light, the better. Right?
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Man Eater
12
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PoloDown
Stranger Danger
Registered: 07/13/12
Posts: 1,559
Last seen: 4 years, 1 month
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Quote:
resincoatedlungs said:
I wanted to go the LED route, quickly realized that they've got a while before they catch up with the HIDs.
Depends on what you buy... There are very expensive LED's that would exceed most HID
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Hawksresurrection
Registered: 12/04/08
Posts: 13,464
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Re: 90w led vs 400w HID [Re: PoloDown]
#644200 - 11/06/12 10:31 AM (12 years, 1 month ago) |
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Exceed, funny.
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Dude she isn't as young as she use to be.
-niteowl
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scarfaceofweed
I love weed
Registered: 10/29/12
Posts: 28
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I just read that if you are going with a HPS you have to be extra careful about burning your plant.
If it's a 400w HPS then place it at least 15 inches above the plant.
If it's 600w then 20 inches.
I also read that at beginning 15 - 24 inches is best and later on move it closer so it's 6 - 18 inches above.
I don't know if they meant the veg phase by "beginning" or if they mean beginning of flowering.. or when to move it closer "later on".
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Hawksresurrection
Registered: 12/04/08
Posts: 13,464
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They meant when it's young. For the size of your construct, I wouldn't go above a 4. Remember the heat is quite a bit for HID. You need to have appropriate ventilation, reflectors, etc.
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Dude she isn't as young as she use to be.
-niteowl
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brainsOplenty
ganja farmer
Registered: 05/14/11
Posts: 769
Loc: zion
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Quote:
scarfaceofweed said:
I just read that if you are going with a HPS you have to be extra careful about burning your plant.
If it's a 400w HPS then place it at least 15 inches above the plant.
If it's 600w then 20 inches.
I also read that at beginning 15 - 24 inches is best and later on move it closer so it's 6 - 18 inches above.
I don't know if they meant the veg phase by "beginning" or if they mean beginning of flowering.. or when to move it closer "later on".
air-cooled "cool tube" w/600w HPS, i run it about 6-8 inches above plants.
i would imagine with a larger air-cooled hood you could run em even closer than that.
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it's written right here.
it's absolutely clear.
the ganja herb is the healing of the nation.
 
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Irishdrunk
Democracy? We Deliver!
Registered: 04/15/10
Posts: 200
Last seen: 11 years, 8 months
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I like to wire my place to my neighbors house, good times.
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There's a conflict in every human heart
between the rational and the irrational,
between good and evil.
The good does not always triumph.
Sometimes the dark side overcomes
what Lincoln called the better
angels of our nature.
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GBurger717
Let me be me! I luv me some me!
Registered: 11/10/12
Posts: 505
Loc: USA, East of Mississippi 
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Re: 90w led vs 400w HID [Re: Irishdrunk]
#647330 - 11/21/12 08:23 PM (12 years, 28 days ago) |
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I am looking at the black dog led and the diamond series by advanced led's I would bet from all the reading I have been doing that they will work better then any 400 or 600 wat hps system out there
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"If only one party supports a bill, it's probably not a very good bill. If both parties support it, you can be sure that however good it seems on the surface, under the covers it's worse than you could possibly imagine" - Me myself and I 08-02-12
When the people fear their government, there is tyranny; when the government fears the people, there is liberty - Jefferson
The two enemies of the people are criminals and government, so let us tie the second down with the chains of the Constitution so the second will not become the legalized version of the first. - Jefferson
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Tank333
Psychotic Hippie
Registered: 08/19/10
Posts: 1,241
Loc: Washington
Last seen: 4 years, 11 months
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Re: 90w led vs 400w HID [Re: GBurger717]
#647535 - 11/23/12 10:17 AM (12 years, 27 days ago) |
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Quote:
GBurger717 said:
I am looking at the black dog led and the diamond series by advanced led's I would bet from all the reading I have been doing that they will work better then any 400 or 600 wat hps system out there
It won't happen, man. Just because the MANUFACTURER says that it compares to a 400 or 600 watt HID, doesn't mean it's true. Ask Psychotron. He's all sorts of up on current LED tech...
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My best run so far
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