400 or 600 or 1000?

luvchilln

New Member
Getting ready to buy new lights... I was going to jump right into a 1000w, then started think about 2 600w, or maybe 3 400w.... room is 7' by 7' and stays pretty cool... What do you think???
 
Re: 400 or 600 or 1000????

Depends how much area you are going to use for plants. Every inch of a 7x7 a single 1000 isn't enough. I have a 4x4 area in a 4x8 tray that I grow in with 1000 watt and its barely enough.
Actually prolly isn't enough. Checkout the footprint of light from each one and go from there.
2 600 for sure if you plan on coming close to filing that room.

Disclaimer:I am not an expert,on my first 2 grows myself.
 
Getting ready to buy new lights... I was going to jump right into a 1000w, then started think about 2 600w, or maybe 3 400w.... room is 7' by 7' and stays pretty cool... What do you think???

Four 600-watt HPS and a centered 600-watt MH. 61.2 watts per square foot with a decent spectral mix for flowering.

A 600-watt MH between two 1000-watt HPS on a HD linear light rail traveling across the room. 53.1 watts per square foot and a decent spectral mix for flowering.

The first would be better. And a space that size would support more light than either as far as that goes.
 
2 x 600W with a large reflector will cover the 7x7 area nicely, 1 x 1000W is not enough to cover.

Two 600 Watt lights is roughly half of the light you would need unless you are not filling the room. EI your grow area (the area your plants actually cover) is say 5 x 5 with 2 foot around the garden to move around it.

TS is right! 50 watts per sq ft min.
 
The guys option was 1 x 1000W and 2 x 600W

Of course indefinite having 4 x 600W is better coverage, but from the option he threw out(limited by budget), 2 x 600W is obvious the better choice.
 
The guys option was 1 x 1000W and 2 x 600W

Also three 400-watt lights. And "..." which I took to mean "et cetera."

Of course indefinite having 4 x 600W is better coverage, but from the option he threw out(limited by budget), 2 x 600W is obvious the better choice.

I didn't see the member mention budgetary constraints as being a consideration. I suppose it is, lol, since none of us have a magic wallet, but since he didn't mention it I took it to mean that he was open to considering other setups than those he specifically mentioned.

If I was mistaken and the choices that he did specifically mention are the only ones... Put up a wall in the middle of the grow room and only use half of it.
 
Also three 400-watt lights. And "..." which I took to mean "et cetera."



I didn't see the member mention budgetary constraints as being a consideration. I suppose it is, lol, since none of us have a magic wallet, but since he didn't mention it I took it to mean that he was open to considering other setups than those he specifically mentioned.

If I was mistaken and the choices that he did specifically mention are the only ones... Put up a wall in the middle of the grow room and only use half of it.

I agree with you, however, correct me if I am wrong, with 3 x 400W wouldn't the yield be captive comparing with 2 x 600W
 
I know this is my first post, isn't the general rule (loosely I might add) 30-40 watts per sq ft? that would put 90% of us (whom have posted) even my own grow room well below the optimum lighting? A room at 7x7x6(the X in it) would require close to 9k! I'm only intending on running 4 plants in my 6x6x6 with the rest of the room taken up by equipment and supplies. hence the more direct focus of a 1k MH/HPS system.

He didn't make mention of the floor plan so to speak. Hopefully I'm not all wrong here...
 
I know this is my first post, isn't the general rule (loosely I might add) 30-40 watts per sq ft?
Generally speaking it is at least 50 watts per sq ft of grow area. (the area actually taken up by the plant)

A room at 7x7x6(the X in it) would require close to 9k! I'm only intending on running 4 plants in my 6x6x6 with the rest of the room taken up by equipment and supplies. hence the more direct focus of a 1k MH/HPS system.
You only need 2 numbers to figure out how much lighting you need. Length and width. Measurements are generally give length x width x height. In your example, 7x7x6 would be 49 square feet and need roughly 2450 watts of HID lighting to grow good solid buds if the entire 7x7 grow area was covered in canopy. For your 6x6 grow (if you are covering the full 6x6 area), you would want at least 1800 watts. With it being only 4 plants, (not using scrog, lst, or some other training method) you will likely cover a 4x4 area with the plany canopy. Thus, you would need at least 800 watts.

Hope that answers your questions.
 
Thanks for all the info everybody!!! i know i didnt mention a set $ amount because im willing to pay for what will give a good set-up with the space i have
 
so heres a question for me, im using 1000wt in my 2*4*5 tent, is that tooooo much then or will my yield be even bigger with the added light.. and electric cost is not a prob
 
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