JungleSlut
Well-Known Member
That's a double ended air cooled hood. Cool tube is no hood just a tube
QAUNTUM BOARD vs HID heat difference
- Thread starter JungleSlut
- Start date
That's a double ended air cooled hood. Cool tube is no hood just a tube
JungleSlut
Well-Known Member
Cool tube de.
That gavita you showed cant be cool tubed with the ballast attached I'm almost positive
That gavita you showed cant be cool tubed with the ballast attached I'm almost positive
ChiefRunningPhist
Well-Known Member
Haha no sweat man. You'd need a different fixture/light.Chief,
thanks for letting me pick your brain and for spoon feeding me!
Last question if you don't mind: Was doing the research on cooltubes and i can't seem to find any grows with cooltubes being used with Gavita DE lights. Would it work? I've never used HID lighting only LED so I'm not sure if the ballast has to be mounted directly to the light.. would you happen to know if cooltubes will work with these lights/reflector?:
You'd want something like this...
https://www.homedepot.com/p/Hydro-Crunch-42-in-Double-Ended-DE-Cool-Tube-XXL-Wing-with-8-in-Duct-Grow-Light-Reflector-for-up-to-1000-Watt-B379900300/302868986
How many ft2 is your room?
JungleSlut
Well-Known Member
For anyone going with gavita i bet I can save you thousand of dollars with a company called universelite their chinese.
But their a MASSIVE COMPANY. Like 500 employees. Revenue of 100million usd or more a year.
They do commercial lighting.
But also got into horticulture lighting.
They got 16 years on alibaba as trusted seller.
Heres some of their products.
Oh and these are Canadian prices. USD would be even cheaper
They have a professional website (Google universelite). All their lights come rnd testing and graphs
But their a MASSIVE COMPANY. Like 500 employees. Revenue of 100million usd or more a year.
They do commercial lighting.
But also got into horticulture lighting.
They got 16 years on alibaba as trusted seller.
Heres some of their products.
Oh and these are Canadian prices. USD would be even cheaper
They have a professional website (Google universelite). All their lights come rnd testing and graphs
Attachments
newguy41410
Well-Known Member
damn, i think my roommate already has gavitas on the way...
so that home depot hood wouldnt work on the gavitas?the room is 150-ish sq ft i believe
newguy41410
Well-Known Member
would be very hard for me to pull the trigger on some uiniverselite lights without at least seeing/hearing anecdotal evidence of them working great
JungleSlut
Well-Known Member
Yeah gavitas are a solid light tried and tested
As far as universelite they have 5 year warranties on their lights. And have been doing lighting for 16 years or more. That's a solid foundation to take a chance on in my honest opinion. And for the price.......you couldnt go wrong to grab one and test It.
As far as I've seen balast and fixture is concerned I'd say their pretty generic.
Could always buy one of those and then get.a hortilux bulb or something.
I would of tried universelite cmh fixture but I like the idea of the vertical bulb instead of the horizontal.
So I bought a vivosun 315 cmh.
Its like 24x24" dimensions so it would provide perfectly even coverage.
Those universelite cmhs are like 24"x16" or something.
One thing I did do tho.
I have the sunsystem 315 watt cmh with a Phillip's 4100k
In that vivosun I ordered one of universelite cmh bulbs 3100k
(On amazon universelite is known as the seller "XAMT")
Universe lite cmh, 60 dollars cdn
Phillip's cmh 110 dollars cdn
So at the end of this grow I will be able to tell you how their light compares to the best of the best
JungleSlut
Well-Known Member
The universelite cmh looks comparable spectrum wise. I guess well.see.how they perform
Renfro
Well-Known Member
As to the plants / heat matter @growingforfun and @ChiefRunningPhist were "discussing" here is my take. Some plants are thermogenic, cannabis is not one of them.
Thermogenic plants have the ability to raise their temperature above that of the surrounding air. Heat is generated in the mitochondria, as a secondary process of cellular respiration called thermogenesis. Alternative oxidase and uncoupling proteins similar to those found in mammals enable the process, which is still poorly understood.
Cannabis plants do seem to cool the room, they adsorb light and do photosynthesis. We all know that planting plants in cities reduces the thermal effect caused by concrete adsorbing solar energy. So cannabis plants do indeed "cool" a room in my opinion.
Thermogenic plants have the ability to raise their temperature above that of the surrounding air. Heat is generated in the mitochondria, as a secondary process of cellular respiration called thermogenesis. Alternative oxidase and uncoupling proteins similar to those found in mammals enable the process, which is still poorly understood.
Cannabis plants do seem to cool the room, they adsorb light and do photosynthesis. We all know that planting plants in cities reduces the thermal effect caused by concrete adsorbing solar energy. So cannabis plants do indeed "cool" a room in my opinion.
ChiefRunningPhist
Well-Known Member
You'd have to do some DIY, it doesn't look like the de hoods will fit on the gavitas without modifying them. If you understand that the gravitas operate on the same principle, ie a ballast driving a bulb, then you'd just have to attach a power cord between the gavita ballast output and the de fixture input. You'd want to use some thick gauge wire, probably 12ga.damn, i think my roommate already has gavitas on the way...
the room is 150-ish sq ft i believe
Renfro
Well-Known Member
Know that extending the wire from the ballast to the lamp on high frequency ballasts is likely to cause RF interference. The wire acts like an antenna. When the ballast is connected directly to the lamp the connection is shielded (faraday cage) so the RF emission isn't an issue.
ChiefRunningPhist
Well-Known Member
Good catch.
@newguy41410
12/2 shielded is going to be spendy. Here's 250' for $170...
https://www.ebay.com/itm/250-12-2-VNTC-TRAY-CABLE-TC-ER-Shielded-PVC-Jacket-Copper-Wire/161584217081?
Renfro
Well-Known Member
I did shielded cable with the old school lumatek ballasts (1st gen silver). Needed to relocate them about 20 feet on the longer runs. I don't know how effective it was but there were no complaints from neighbors. Not sure what frequency they drive the lamp at but it would be interesting to experiment with a broadband RF receiver and various lengths of different cords on different ballasts. I actually have a broadband bug detector but I am not sure if it would detect the frequency used as it's more in the gigahertz range I think.
OneHitDone
Well-Known Member
I thought they (gavita) got in some RF trouble with their remote ballasts?
I know the Hydrofarm remote DE High Freq ballasts have filters on the power and lamp cords
ChiefRunningPhist
Well-Known Member
I have no clue, I ran seperated ballasts and was in a place that rf wasn't a consideration. I'm pretty sure I had lumateks too but can't remember its been awhile.
This would be interesting!
Renfro
Well-Known Member
yeah the old ferrite bead.
Rocket Soul
Well-Known Member
On more plantmatter, cooler room: its down to transpiration; more plants, more transpiration, more humidity and temps drop. I sincerely doubt any other explanation.
JungleSlut
Well-Known Member
Quick question in somewhat relation (sorry but while I have all the legends In the same thread
why not right) Is it pointless getting a humidifier to raise humidity if your exhaust is running almost 24\7 when lights on can a humidifier even keep up? Or would it just sit there spinning its wheels?
Renfro
Well-Known Member
this