well I belive that you can get more useable light to your plants when you grow vertically vs trying to direct the light down to the plant canopy. so i am putting my plants around the light and let my plants grow to the light that way my buds aren't being shaded by neighboring plants.HippyInEngland said:A Cannabis leaf is this shape for a reason.
It likes light from above, not from the side.
Why are you lighting it vertically?
eace:
PencilHead said:Heat, heat, heat. That's going to be your problem. None of us have any idea how much heat these HID lights put out until we actually are responsible for one.
Yea i had origionaly planned on useing 2 600 but when I saw water cooled lights I thought that since I could keep the heat down I could get way more light to my plants. just like the cage witch uses 4 400's and claims 6lbs off 72 clones or colisume witch uses 3 1000's and houses 300 clones. And I read the sun puts out 10,000 watts per square foot in direct sunlight and 500 in deep shade. so I just assumed that they should be able to take it since they get way more light from the sunNYC_Diesel x Jack_Herer said:yes there are examples of light burn here, just search for "light burn". That is an LOT of light for that space. I understand the concept though, basically you are describing a collesium. I would use 600 watt lights if it was me. You would not need to use water housing and could just use a cool tube design. You would still get more than enough light and generate a lot less heat. Vertical light installation is not all that uncommon anymore.
Your closet is less than 100 cubic feet. Putting two 1,000 watts in there is going to be like standing an inch from the sun and would provide 3,000 lumens per CUBIC foot, WAAAAAAAAAAAAAAAAAY overkill.
No. I wish this was my IdeaHippyInEngland said:Are you selling these?
P. BLAZUH said:Yea i had origionaly planned on useing 2 600 but when I saw water cooled lights I thought that since I could keep the heat down I could get way more light to my plants. just like the cage witch uses 4 400's and claims 6lbs off 72 clones or colisume witch uses 3 1000's and houses 300 clones. And I read the sun puts out 10,000 watts per square foot in direct sunlight and 500 in deep shade. so I just assumed that they should be able to take it since they get way more light from the sun
so I can get away with 2 600 watters you thinkNYC_Diesel x Jack_Herer said:yea the sun puts out 10,000 lumens per square foot, but I was saying you would have 3,000 lumens per CUBIC foot in your grow space. To figure out how many lumens you would be using per square foot it is a little tougher but here.....
Circumference of a circle or cylinder is Pi(x)diameter. In a closet that is 3.5 feet on one side you can only have a circle that is a maximum radius of 1.75 or a circumference of 3.5 feet. So this means your plants would have to be AT THEIR FURTHEST 1.75 feet from your light. If you were able to build the plants vertically up to a height of 5 feet, your garden surface area would then be AT MAXIMUM (edited for poor math) 55 feet. This would still give you roughly 5,500 lumens per square foot. This is a great number to have, but in a circle that is that size, you are not going to be able to keep all the plants on the outer edge of that cylinder. you need a closet that or vertical grow space that enable you to keep the plants at least 1.75 feet away from the light at all times. In other words, your circle just isn't large enough. The plants directly around the lights would grow right into them, burning themselves and shading the others.
At 3.5 x 4.5, growing with a flat canopy directly below the lights, you can have more than enough light using two 400 watt lights with reflectors.P. BLAZUH said:so I can get away with 2 600 watters you think
so even though the lights won't burn the plants you think the light intensity would be to much for the plants to handle?NYC_Diesel x Jack_Herer said:I would not use 400 watt lights ever just because you get screwed in the watt to lumen ratio.
400 watt @ 50,000 lumens=125 lumens per watt
600 watt @ 95,000 lumens=158.3 lumens per watt
1,000 watt @ 145,000 lumens=145 lumens per watt
this is why I prefer 600 watt lights. That being said no, I do not think you can get away with 600 watters. I was saying if you could keep the plant canopy as far away as decribed above you could use 600 watt lights. The fact of the matter is it is just not going to be possible to do a vertical grow well in that size closet. I would just use one 600 watt light. Your closet is roughly 16 square feet, the one 600 watt light would give you over 5,000 lumens per square foot.
So all considered, exactly how much is the dollar difference in monthly operation? Just guessing, I figure it would be about $1.50 more.NYC_Diesel x Jack_Herer said:I would not use 400 watt lights ever just because you get screwed in the watt to lumen ratio.
400 watt @ 50,000 lumens=125 lumens per watt
600 watt @ 95,000 lumens=158.3 lumens per watt
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