Would a 400w mh/hps be enough for 4x4 open grow area 10 ak47 autoflowers?

Would a 400w mh/hps be enough for 4x4 open grow area 10 ak47 autoflowers?

Any suggestions accepted. Its in an open room about 14x10 but set to a 4x4 tarp.

sure,as long as the light is close,dont see any probs.

would a room that is 14x10 have significant heating issues with a 400watt mh/hps? I understand it will get warmer but with the AC at a steady 70 it should be ok or no?

temps should be just fine,again,provided you have the proper ventilation.Is it a Sunburst complete setup,or a hood and separate ballast?If separate,is it air cooled?If yes,then you will be just fine.

luvvin growin said:

temps should be just fine,again,provided you have the proper ventilation.Is it a Sunburst complete setup,or a hood and separate ballast?If separate,is it air cooled?If yes,then you will be just fine.

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This is the lights im about to get on friday.

http://www.hydroponicsoutlet.com/Sunleaves-Pulsar-Two-Way-Mini-400W-MH-HPS-p/sptm125.htm

do you know any better for around the same price?

Another question would be with that above light do I NEED to aircool it? like will it catch fire or get too hot if i dont?

Does anyone have any ideas on my last posT?

I have more of a question..

this is another link for a 400 watt.. what I find questionable is it shows these specs on the page.... Now 175 watt MH & 150 watt HPS. do both lights run at the same time? Or no? im confused on how the 400 w mh/hps systems work.

I have the Sunburst 400watt for my smaller plants,and found that it desperately needs to be air cooled,as the ballast and the light that close cause some major heat.I got a 4" flange,mounted it to the light above the ballast,then put that into a 6"to4" reducer to my 6" fan,and the heat was gone.Hope this helps.

Thank you for the info.. I was checking around for other lights and found this deal from HTGsupply. http://www.htgsupply.com/viewproduct.asp?productID=51374 its a huge combo deal. What do think?

too much other stuff along with it,but a good light.

I was doing the math on the 400 watt hps covering a 4x4 area and if I divide the total square ft (16) into the 55,000 lumens that the hps provides that means im only getting 3437 lumes per sq ft. I thought you needed atleast 7000 - 10000 for healthy production. Am I wrong?

So Ive decided to lower it to a 3x3 grow so I waste as little light as possible. You can check out my journal here.

Finally my seeds and lights came in.. check my journal in the sig!!