Not worth doing if it aint done right.

Backspace420

New Member
Greetings from the dessert, location is Phoenix, Az. Indoor grow set up in the works. Here's the question, first of many I suppose. The wife and I are going to be using a 4x8 tent from Hydro Planet. The tent has arrived and has been set up. However no fans or filtration system as of yet, TBD after lights have been ordered. So here the question: After doing much research still am wondering which is better for a no-hassle, full spectrum light system. Here is what we are considering.
Agrobrite Fluorescent Grow Light T5 4ft./8 bulb fixture that comes with 8-6400K tubes. (5000 Lumens per tube for full daylight spectrum.) Times 2 of these fixtures in a 4x8. Is this a sufficient system for Veg and Flower without having to change bulbs, just timed light cycles going from 18-6 for Veg, then 12-12 for flower for a no-hassle Germ. to Harvest.
Have done a lot of research about HPS vs. MH and the differences each light accomplish in a grow. We know that more light, such as in HPS yield bigger harvest and flower production depending on medium and feeding for plants. The drawback is the heat that HPS generates and the need for venting and proper circulation of air in the plants environment. We also know that it is said MH is the way to go for veg. and all the scientific talk about UV light and how it's actually harmful in the grand scheme of a plants life. With the quirk that since UV light is actually harmful it's the reason why plants produce more resin glands and crystal formation to try and protect the flower. Sort of like humans putting on sun screen to protect ourselves from harmful UV rays, or at least that's my take on all this so far. So you end up with a so-so yield but the potency of the plant is much better mainly from the plant trying to protect itself.
Cost vs. Watts and needs. I've decided that I'm not so worried about the spikes in my electric bill, hell, anyone who lives in the Phoenix area is used to seeing high electric bills it's just part of life when you live in the desert. But after the monsoon season and the temps start to lower a little extra power usage to run lights and the timers is no big deal since the electric bill drops an average of 60 to 70 dollars in the winter months, basically it averages itself out in the long run cost wise as if it were summer all year long.
So all that being said here's what we are considering in the way of lights. We are thinking of going with two T5 4tf./8 bulb systems with the exact same configuration in bulb placement as follows from Eye Hortilux.
Starting from left to right:
1-FS/UV @ 54 watt HO for photosynthesis and for faster plant growth and a stronger root system.
2-Blue 420 @ 54 watt HO for veg growth, tighter intermodal space and C02 intake.
3-FS/UV @ 54 watt HO again for growth and the root system.
4-Red 633 @ 54 watt HO for vertical growth and leaf size also for fruiting and flowering.
5-FS/UV @ 54 watt HO again for growth and the root system.
6-Blue 460 @ 54 watt HO for transitioning from veg to flowering and uptake of chlorophyll B, carotenoids and stomatal C02 intake.
7-FS/UV @ 54 watt HO again for growth and the root system.
8-Red 660 @ 54 watt HO for enhanced flowering and fruiting.
This light set up would supposedly be good for a full spectrum of UV and UVB and set @ between 8" to16" above the plant canopy would produce UVA of 315nm to400nm and UVB of 280nm to315nm with a timed cycle of 18hr. on and 6hr. off for veg and 12hr on 12hr off for flowering. All that times 2 systems hanging in the tent.
The light is my actual cost vs. wants of watts. Should I plan on buying this type of set up which would run me rounded off to about $1000 for both or do I just go with all HPS, all MH or both? We will be growing mainly the Big Bud and Thai Skunk using a moderate C02 generator designed for indoor tent growing. Then after harvest switching to Amnesia Haze and Light of Jah.
All input and advice will be respected. Peace and a prosperous grow to all my fellow 420'ers out there.
 

DocktaGreenThumb

Active Member
This light set up would supposedly be good for a full spectrum of UV and UVB and set @ between 8" to16" above the plant canopy would produce UVA of 315nm to400nm and UVB of 280nm to315nm with a timed cycle of 18hr. on and 6hr. off for veg and 12hr on 12hr off for flowering. .
IMO, 24hr from start (seed or clone) to flower. You will see a significant difference when using T5HO. (1) Eight bulb fixture should suffice for VEG in a 4'x8' area. Keep them short (super crop, FIM, etc.) and keep the light close, around 4"-6" This will create very tight internode length, and create nice and tight bud sites.

Also, 1000WHPS is the way to go for flower. You're not going to get the light penetration and density without it. To be honest, if anyone tells you different, they have no F**KING:cuss: clue as to what they are talking about bongsmilie
"Not worth doing if it aint done right"
 

OldMedUser

Well-Known Member
High Backspace420

I'm a hardcore HID grower myself but I bet you can do a pretty decent job of it with those new Hortilux T-5 tubes if you stick to shorter plants or some sort of ScroG setup to keep your canopy nice and flat.

I've not been too impressed with most LED grows I've seen but these COBs seem to be working better than most and if I didn't already have more HIDs than I can use I'd get some of those.

I've recently got an 8x4 tent myself from a buddy and plan to use a 1000W HID on a light rail to do the whole thing. I find one bulb in a light-weight reflector a lot easier to deal with than a big flat panel of tubes.

:peace:
 

DocktaGreenThumb

Active Member
Even the best 1200w COBs only cover a 3.75' x 3.75' area compared to a 1000WHPS 5' x 5' Depending on the reflector type, this can get even greater. That alone makes up my mind. If you can show me a side by side picture of a COB / HPS grow and show me a significant difference, I'll jump on board. I have seen no difference in resin production, density (HPS is better here imo) or overall quality. Until then, I suggest people invest their money (a lot of it) elsewhere...
 

Olive Drab Green

Well-Known Member
Even the best 1200w COBs only cover a 3.75' x 3.75' area compared to a 1000WHPS 5' x 5' Depending on the reflector type, this can get even greater. That alone makes up my mind. If you can show me a side by side picture of a COB / HPS grow and show me a significant difference, I'll jump on board. I have seen no difference in resin production, density (HPS is better here imo) or overall quality. Until then, I suggest people invest their money (a lot of it) elsewhere...
This is completely false, and actually made up. Starting with there are no single 1200w COBs and moving onto using enough COBs driven at the right amperage can cover anything, covering an 18x18 with each. My three could cover a 4.5x4.5 with 900-1000 PPFD. I cover a 4x2 with 3 overlapping strongly, increasing PPFD intensity further.
 

Yodaweed

Well-Known Member
Greetings from the dessert, location is Phoenix, Az. Indoor grow set up in the works. Here's the question, first of many I suppose. The wife and I are going to be using a 4x8 tent from Hydro Planet. The tent has arrived and has been set up. However no fans or filtration system as of yet, TBD after lights have been ordered. So here the question: After doing much research still am wondering which is better for a no-hassle, full spectrum light system. Here is what we are considering.
Agrobrite Fluorescent Grow Light T5 4ft./8 bulb fixture that comes with 8-6400K tubes. (5000 Lumens per tube for full daylight spectrum.) Times 2 of these fixtures in a 4x8. Is this a sufficient system for Veg and Flower without having to change bulbs, just timed light cycles going from 18-6 for Veg, then 12-12 for flower for a no-hassle Germ. to Harvest.
Have done a lot of research about HPS vs. MH and the differences each light accomplish in a grow. We know that more light, such as in HPS yield bigger harvest and flower production depending on medium and feeding for plants. The drawback is the heat that HPS generates and the need for venting and proper circulation of air in the plants environment. We also know that it is said MH is the way to go for veg. and all the scientific talk about UV light and how it's actually harmful in the grand scheme of a plants life. With the quirk that since UV light is actually harmful it's the reason why plants produce more resin glands and crystal formation to try and protect the flower. Sort of like humans putting on sun screen to protect ourselves from harmful UV rays, or at least that's my take on all this so far. So you end up with a so-so yield but the potency of the plant is much better mainly from the plant trying to protect itself.
Cost vs. Watts and needs. I've decided that I'm not so worried about the spikes in my electric bill, hell, anyone who lives in the Phoenix area is used to seeing high electric bills it's just part of life when you live in the desert. But after the monsoon season and the temps start to lower a little extra power usage to run lights and the timers is no big deal since the electric bill drops an average of 60 to 70 dollars in the winter months, basically it averages itself out in the long run cost wise as if it were summer all year long.
So all that being said here's what we are considering in the way of lights. We are thinking of going with two T5 4tf./8 bulb systems with the exact same configuration in bulb placement as follows from Eye Hortilux.
Starting from left to right:
1-FS/UV @ 54 watt HO for photosynthesis and for faster plant growth and a stronger root system.
2-Blue 420 @ 54 watt HO for veg growth, tighter intermodal space and C02 intake.
3-FS/UV @ 54 watt HO again for growth and the root system.
4-Red 633 @ 54 watt HO for vertical growth and leaf size also for fruiting and flowering.
5-FS/UV @ 54 watt HO again for growth and the root system.
6-Blue 460 @ 54 watt HO for transitioning from veg to flowering and uptake of chlorophyll B, carotenoids and stomatal C02 intake.
7-FS/UV @ 54 watt HO again for growth and the root system.
8-Red 660 @ 54 watt HO for enhanced flowering and fruiting.
This light set up would supposedly be good for a full spectrum of UV and UVB and set @ between 8" to16" above the plant canopy would produce UVA of 315nm to400nm and UVB of 280nm to315nm with a timed cycle of 18hr. on and 6hr. off for veg and 12hr on 12hr off for flowering. All that times 2 systems hanging in the tent.
The light is my actual cost vs. wants of watts. Should I plan on buying this type of set up which would run me rounded off to about $1000 for both or do I just go with all HPS, all MH or both? We will be growing mainly the Big Bud and Thai Skunk using a moderate C02 generator designed for indoor tent growing. Then after harvest switching to Amnesia Haze and Light of Jah.
All input and advice will be respected. Peace and a prosperous grow to all my fellow 420'ers out there.
2x 1000w hps for cheapest option, LEDs/CMH for more expensive options with less heat.

http://timbergrowlights.com/600-watt-cree-cxb3590-4x4-framework/
2 of those would cover your area wall to wall
 
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