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This may not matter when you have Hogdady's FAT Wallet.
no one ever mentions my fat wallet, just my fat head!
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This may not matter when you have Hogdady's FAT Wallet.
stoppin in buddy
the downside is the watts per sq foot. I have a 100 sq ft gro area. At 50 watts per sq ft, thats 5kw of light. 5kw is 125% of 4kw. So with 4kw I get 50 watts per sq ft with the mover.
IDK... I've never really looked at watts per sq ft... I've always seen watts as the measurement of use of energy... nothing helpfull to the plants... I may be wrong... IDK... anyone else have thoughts on this? I've looked at Lumens per sq. ft... Not trying to give you a hard time Hogdady I'm just wondering which way would really be better... cause that's alot of energy used and if you could grow 4lbs under 2400w instead of under 4000w that may help the wallet enough to afford the conversion bulbs... LOL... Not to mention your g/w ratio. I saw a 600w conversion online for like $84... I've always spent big money on the bulbs though so that's something I'm used to... LOL.
H2OGanjaFarmr
50 - 60 watts per foot is the rule of thumb that I am familiar with for determining the basic amount of light you need. Also, if you take the 2400w of 4-6's and multiply by 125%, you get 3kw. Using 1/2 gram per watt as a guide, that's only 1.5 kg of yield. The difference between 2400w and 4000w is 1600w. Over a 90 day gro period (30@18/6, 60@12/12), thats 1240 kwh. That will cost me $434 for a potential 1 kg of yield ($5k?). Sound about right?
I don't know... cause to me watts is a measure of electricity it seems you're using it as a measure of yield/harvest.
I can't see how if you used 600's instead of 1000's you would get 1kg less yield when the plants will be getting the same lumens cause you can put the light closer...
I guess the only way to test it is for you to use 1000's and me to use 600's and start a comparative grow using the exact same everything and see how it turns out...
If you ask around here, a 1/2g per watt (of energy) is a decent yield. That's what I am using as a guide in my formula.
It's all in the math. 1/2g per watt (again)
Although that may be interesting to some, this is an income source to me and I am soley interested in that. If I need to spend $700 (the $434 figure was incorrect) to get back (potentially) $5k, then that's what I'm going to do. I actually was considering 4-6's until I went over the numbers enough to realize that 2400w is not enough......
The only thing I would add,
The price of a 600 mh bulbs (no such thing only Conversion) hard to find and very costly.
HiLux Gro 600 watt MH Conversion Bulb [600w] - $99.95 : neHydro.com, Hydroponics and Gardening Supplies
But the 1000 mh bulbs are cheaper by $60+
Plantmax 1000 watt MH Bulb [1000w] - $39.95 : neHydro.com, Hydroponics and Gardening Supplies
So that many be a saving of $240.00
This may not matter when you have Hogdady's FAT Wallet.
I'm definitely interested in this as I expand my operation. I am thinking some similar things about the relationship between watts and square footage and yield. I think all three would have to be used to come up with a formula, but I think you would have to make one of the figures a fixed number to compare the others easily.
When talking about square footage though, assuming the same reflector, since a 1000w light is going to be higher from the plants, it will cover more area if we raise it until the lumens are the same as the 600w. There are other factors, such as 600w lights putting out the most lumens per watt (J. Cervantes Indoor/Outdoor book), and if we are talking about using the same amount of watts (like 6x1000w or 10x600w), the 600's should produce more lumens.
Maybe a couple of fat heads can figure this stuff out, I have been thinking about it a lot while I do other things, but have not had the time to sit down and think about my strategy. Maybe when I get some dry weights here, I can more-easily decide what I am going to do next.
I have come to a realization...and that is that I am starting to sound like I think I know what I am talking about. Nothing could be further from the truth. Although I have been growin for a couple of years, it wasn't until I recently decided to increase my knowledge base that I aggresively began pursuing all the info I could acquire. The formulas that I have use to calculate my lighting needs are, from what I understand, basic guidelines that growers have been using for some time. Much of my info has come from 420, but not all. So, while we could discuss this further, I have to cry "uncle", because I do not have the experiance or knowledge to continue. I feel comfortable that my numbers are sound, but they are only guidelines that I have chosen to use.
Bradah, you are doing a damn fine job. We are fortunate enough to have 420 as a stomping ground to throw ideas back and forth on. I use this site as a tool in my grows. The journaling process is part of growing ganj, thats if you choose to journal. Its not a neccessity, however it helps to take notes and post, as well as problems. So what you've drawn from it is great, and YOU DO KNOW WHAT YOU ARE TALKING ABOUT. Just look at your grow. So what, if some info is out of your reach(for the moment), when it all comes down to it, your experience says everything for you HOG. Great grow, great harvest and a great friend.
I have come to a realization...and that is that I am starting to sound like I think I know what I am talking about. Nothing could be further from the truth. Although I have been growin for a couple of years, it wasn't until I recently decided to increase my knowledge base that I aggresively began pursuing all the info I could acquire. The formulas that I have use to calculate my lighting needs are, from what I understand, basic guidelines that growers have been using for some time. Much of my info has come from 420, but not all. So, while we could discuss this further, I have to cry "uncle", because I do not have the experiance or knowledge to continue. I feel comfortable that my numbers are sound, but they are only guidelines that I have chosen to use.
I'm trying to work together with you with your current system and the system I plan to set up so I could see if the watt per square foot "formula" is accurate or if it would be more accurate as a lumen per square foot "formula".
I certainly wouldn't mind sharing info as you have described. I didn't mean it to sound like was unwilling to do that. I have decided that I am going with 4-1000s and I will definately know soon if that was the right thing to do. And technically, lumens per sq foot is not what you should be concerned with, but PAR watts.
I think with that amount of space, plants, etc the 4-1K lights will do you much better than trying to get 2K worth of lighting to do it all. depending on your layout you may even be able to ditch the mover and use 4 stationary lights. In my experience rooms this size and being on the cusp of using light movers or not can be tricky. I've seen movers and two lights do the job of 4 in the same space and vice versa. I think ultimately with that many plants you will want the extra lights and the yield will be much greater
cheers man
Cool... Cool bro... Can't wait till you start your next journal... when do you think you'll be up and running with those 4-1000's?
Now I just have to figure out a way to get the same Genetics as you're gonna be using not in this coming grow but the next one... but if you're still doing 40 GDP then I want those Gentetics as well... LOL.
H2OGanjaFarmr