Carolina Dream'n
Well-Known Member
Look into 315w CMH.
Help me build 13 x 10 room
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I was checking those out at the hydro shop. That is basically all they had in stock and some gravitas. They were obviously pushing the 315s and 630s. $/watt was damn near COBs. Plus then you have way more heat issues right?
Seems more my style. I prefer to go all out. Which hydro method did you use?
Carolina Dream'n
Well-Known Member
They put out very minimal heat. Yea they are expensive but watt for watt destroy standard HID.
Don't they put out a bunch more heat than LED? Watt for watt aren't LEDs better?
SPLFreak808
Well-Known Member
A 315 lec is pretty bad ass. Id use it over MOST led's (not all) anyday, you get spectrum and penetration with 300watts lol.
It's a slightly different design then the hps/mh/blue you might be thinking about. Its about efficiency and radiant output that determines heat.
Carolina Dream'n
Well-Known Member
I know nothing about LED. People rave about COB's,
Are my COB wattage calculations correct at 35w/sqft? Also anone know why you would go with the 200w 4 COB light kit from timber over the 300w 4 COB kit? 300w kit is a much cheaper price per watt. And can I calculate the actual current draw by dividing the wattage by the voltage. One 300w kit draws 2.72A? I'm thinking 3 20A circuits will be enough. 35A in lights plus the fans etc.
Trying to find more info on this stuff. Any go to threads?
GroErr
Well-Known Member
I use both the 315 CMH and 3590 COBs, either can do 1 gpw with your eyes closed, e.g. a mix of strains/phenos in a pheno hunt. If I grew for weight I'd be doing something like Blue Dream and be pulling 1.5-2.0 gpw with either tech. Yes, they're more expensive up-front but the production/yield will pay for itself in your first full run. I've converted a couple of grows from hps to 315's and watt-for-watt they're both producing 25-30% more than they were under standard hps. More recently started running 3590 COBs in there as well, so far from what I'm seeing there's probably a 10% bump in coverage/weight over the CMH mainly due to larger coverage per watt if you buy the right design/COB fixtures.
With the right strain/pheno either of these techs will easily produce 1.5/gpw at 30w/sq. ft.
It comes down to pay me now or pay me later. With these techs you're putting more money out up-front, then either saving on hydro or producing more per watt. You can put your money into the lights and reap the extra yield per watt, or go hps and give it to the hydro company.
With the right strain/pheno either of these techs will easily produce 1.5/gpw at 30w/sq. ft.
It comes down to pay me now or pay me later. With these techs you're putting more money out up-front, then either saving on hydro or producing more per watt. You can put your money into the lights and reap the extra yield per watt, or go hps and give it to the hydro company.
I'm going with the COBS. What are you growing in to get those kind of yields?
GroErr
Well-Known Member
Just a soil blend, nothing fancy, 50% triple mix base and 50% pro-mix in fabric pots.
SPLFreak808
Well-Known Member
Probably... Just search "clone quarentine treatments" or something. You dont want spider mites ect and guess what, most commercial people ect act like they're clones dont have em!
Uberknot
Well-Known Member
If I had the ability I would make the bathroom the point of entry like fort knox and sterilize all area's.
Then anyone coming in would have to use the bathroom strip, shower, and only use garments that are designated strictly for the grow area.
I know sounds extreme.....lol!
Then anyone coming in would have to use the bathroom strip, shower, and only use garments that are designated strictly for the grow area.
I know sounds extreme.....lol!
make sure if your going to go with hydro to keep water temp in check our you are in for a rude awaking that's why people say your better off with soil you have a buffer which ever way you decide with check to make sure you have enough power in that room you don't want to over load circuit and have problems good luck
Roger A. Shrubber
Well-Known Member
i've pretty much completely switched to hempy buckets. they're the easiest, best producing thing i've tried so far.
i haven't actually tried rdwc, but i know two people that have, one figured it out after 3 or 4 disasterous runs, and gets good results now, the other guys tells me how great hydro is, and shows me scrubby plants that aren't half as healthy as my hempy buckets.
at least go read the sticky before you spend a lot of money on a rdwc setup
https://www.rollitup.org/t/world-of-hempy.546006/
no chillers, i've never gotten root rot, no airstones, water once a day, empty the catch buckets, done, 2 minutes per plant
i haven't actually tried rdwc, but i know two people that have, one figured it out after 3 or 4 disasterous runs, and gets good results now, the other guys tells me how great hydro is, and shows me scrubby plants that aren't half as healthy as my hempy buckets.
at least go read the sticky before you spend a lot of money on a rdwc setup
https://www.rollitup.org/t/world-of-hempy.546006/
no chillers, i've never gotten root rot, no airstones, water once a day, empty the catch buckets, done, 2 minutes per plant
When I started I used a PAR meter. I keep my clones and seedlings at 500 PAR using MH. I eventually created my own hardware monitoring system that can monitor every aspect of my grow. The system will be able to react to any scenario including escalating alerts via text messages and sounding alarms. I spared no expense on my grow and it has already paid dividends albeit my ROI is a lot further out, but I don't have to worry about the girls.
