Gavita lights

sixstring2112

sixstring2112

Well-Known Member
JorgeGonzales said:

Does anybody else think Tom Hanks is a true American treasure? I simply can't wait to see his brilliant portrayal of "Sully", the captain who risked it all and saved everyone, only to be put on trial for making a choice no man should ever be asked to make.
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Cant wait to see that flick
 
CobKits

CobKits

Well-Known Member
Yodaweed said:
This is misinformed and wrong, just google AC/DC reflector, it's directly air cooled.
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no its not, its indirectly aircooled from behind the reflective insert

there is not airflow over the bulb

airflow over the bulb takes DE out of its optimum temp range and drops lumen output
 
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sgrowdum

Well-Known Member
CobKits said:
no its not, its indirectly aircooled from behind the reflective insert

there is not airflow over the bulb

airflow over the bulb takes DE out of its optimum temp range and drops lumen output
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Not with the SE/DE bulbs. Well according to the Rep anyways.
 
CobKits

CobKits

Well-Known Member
yeah that bulb is its own animal the arctube is obv shielded more so than the usual DE. youd really have to get a par meter and put it in a cool tube and rip air over it to see if it drops in output. there may be a point where a ton of air actually drops it and you can figure it out and dial it in
 
Stephenj37826

Stephenj37826

Well-Known Member
PSUAGRO. said:
I can't find any info if it's universal position? don't think it matters with sodium arcs though, more of a mh/cmh issue,idk..........also I think that DE needs to be run horizontal/in a reflector to keep the arc at optimum temp(600c+), hence no direct cooled hoods. Vert/bare bulb might just negate the efficiency bump and the OP should just stick to a quality 1000w SE bulb/2 600w SE...........
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The temps has more to do with the quartz jacket of the DE and how close in proximity it is to the arc tube. Ultra Sun has an 1850umol bulb now as well that can run on standard 1000 watt digital (below 100 mhz) and it will even run on a mag. Also look into Genisis new hps it's higher output than hortilux as well.
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
sgrowdum said:
So I've been out of the loop for the last 6 years and these Gavita lights keep coming up in conversation between some experienced growers I know. Anyone care to shed some light on them? I am setting up a bare bulb vertical grow and I was considering 3 (600)'s or two (1000) HPS in my coliseum. I have also been seeing a lot of these dual filament bulbs with HPS and MH.

It's probably note worthy that I have quite a few 600 watt ballasts lying around some are purple digital (I think) and some are the old school big ass white ones (hydro farm.) I also have an old school (white finned hydro farm I think) 1000 lying around.

growing vertical obviously means I am trying to maximize yield and wattage so the best lighting is important to me. In the same token I would like to use what I already have and where I am growing it is very difficult and expensive to get equipment so longevity might need to be considered.

Also I'm not interested in running LED lights. It would not work for my style growing.
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https://www.rollitup.org/t/another-side-by-side-by-side-hps-vs-de-hps-vs-cob-led.920305/#post-12941976
 
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sgrowdum

Well-Known Member
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MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
sgrowdum said:
Strongest argument I've seen for LED's yet. Maybe these cobs are just that much better that what I've seen before but every LED grow I've seen the buds just lacked something. They were either scraggly or soft looking.. What would it cost to properly fill say an 8X8X8 tent with them as apposed to 2 DE 1000 watters?
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Its not the first time this question has come up, but I defer you to the last one I had on the topic.
https://www.rollitup.org/t/gavitas-are-they-really-worth-the-price.886492/page-12
 
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sgrowdum

Well-Known Member

Also look at this video. Sounds like a good idea until the end where you see all the larf.. Look at the bottom of those plants. Total shit.
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
sgrowdum said:

Also look at this video. Sounds like a good idea until the end where you see all the larf.. Look at the bottom of those plants. Total shit.
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1.5G/W isnt shit, and neither is his 1.9G/W run Unless you can get better I would love to see it completely documented.

Edit that was his first two grows.
 
Stephenj37826

Stephenj37826

Well-Known Member
sgrowdum said:
Strongest argument I've seen for LED's yet. Maybe these cobs are just that much better that what I've seen before but every LED grow I've seen the buds just lacked something. They were either scraggly or soft looking.. What would it cost to properly fill say an 8X8X8 tent with them as apposed to 2 DE 1000 watters?
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2 DEs will be lacking in 64 sq ft. If you are solely looking for 2DEs worth of lighting 600-750 per DE of high efficiency cobs (cxb3590 or better) will do the trick with the right optics.
 
CobKits

CobKits

Well-Known Member
sgrowdum said:

Also look at this video. Sounds like a good idea until the end where you see all the larf.. Look at the bottom of those plants. Total shit.
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so trim the bottoms and yield the same? even if 20% of his weight is in bottoms (it isnt- as you know, bottoms weigh nothing) - hes well over 1.5GPW with (by this point) outdated led tech
 
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sgrowdum

Well-Known Member
MeGaKiLlErMaN said:
1.5G/W isnt shit, and neither is his 1.9G/W run Unless you can get better I would love to see it completely documented.

Edit that was his first two grows.
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I'm not commenting on his GPW. That is obviously impressive. The quality of half of that plant is shit. It would literally be thrown away in my garden. When I see that it just turns me off. Trust me, I want to like LED's it just makes sense and solves almost all the problems indoors growers face.
 
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sgrowdum

Well-Known Member
CobKits said:
so trim the bottoms and yield the same? even if 20% of his weight is in bottoms (it isnt- as you know, bottoms weigh nothing) - hes well over 1.5GPW with (by this point) outdated led tech
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Fair argument. Now what is the quality of his tops or new COB lighting vs. a DE or newer technology HID light.
 
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sgrowdum

Well-Known Member
Stephenj37826 said:
2 DEs will be lacking in 64 sq ft. If you are solely looking for 2DEs worth of lighting 600-750 per DE of high efficiency cobs (cxb3590 or better) will do the trick with the right optics.
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My new grow "room" will be confined to a 8X8X8 tent unfortunately. I think I am going to run two 3X6 tables (aero) to beat utilize this space so I am open to options.

Being able to yield 4lbs from a tent that size of PREMIUM quality bud is the goal. The part of the world I'm in the customers pay A LOT of money for good herb and my customers are picky. Sub par or even mediocre herb will not do. So I'm skeptical. I can't afford not to be. However unlike before I am now listening.
 
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