Which is the best HPS DE combo?

Sam&Max

Sam&Max

Active Member
bottletoke said:
u should educate yourself on gavitas. u hang them close to the walls so you get relective overlap, thats how gavita designs grow rooms for there customers, the magic in de's is all about overlap and having even pars throughout the room....sorry, im done, email them yourself and dont base your decision on what you get from forums. there are more idiots on these boards then people that actualy know what they are talking about. sounds like u already listened to them and you already have your mind made up. im not a salesman so i dont benefit in anyway on convincing u to buy 1000's but having the ceiling height to be able to run them and choosing something with less penetrative pars is something i cant wrap my head around. i grow for high quality yield, if 750's where able to do more then a 1000 then i would have them and everybody would have them. 750's are only there for people that dont have the ceiling height to run 1000's, anybody telling you different is in denial.
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Can anybody confirm that? Hanging the lamps close to the wall sounds strange and inefficient for my situation.
 
Sam&Max

Sam&Max

Active Member
Interesting.
Actually I emailed them about a light plan before you posted. When I saw your posts now, in the first moment I thought maybe you work for Gavita and you published my light plan draft here in the forum :-D :-D

I'll see what they will send me...
 
Sam&Max

Sam&Max

Active Member
So far I didn't like what gavita was sending me. Two 1000W fixtures at each end of the table, shooting lot of light in the gaps around the tables. It took them days to send me that plan. When asking about changes it takes again days....

Because I realized that my ebb and flood tables have wide edges and I can't grow that many plants as I wanted, I added to my setup another table. So now I got four tables which in total result in an area of 4.60m x 1.05m where I can put plants into.

I reasearched a bit more and found the nanolux DE 1000W ballasts. They have 6 steps of dimming, from 600 to 1200W. I can use them remotely or put them horizintally at the fixture. I can use them with a nanolux reflector fixture or any other reflector with standard plug. That would mean, I could use now the nanolux fixtures and use the heat in winter and in summer I can use air cooled hoods with the ballasts and direct the heat outside. The fixtures and the lamps are pretty cheap compared to other fixtures. Also they offer different reflectors for different setups. And they have developed a software where you can controll your ballast over the internet.

I guess I will go with them. I will probably run them at something like 850 Watts (with maybe a slight spectrum change) and then when I swap bulbs after some time, I will decide again which bulb I will put in.

I am still not sure which reflectors and how many fixtures I need....
 
Yodaweed

Yodaweed

Well-Known Member
Sam&Max said:
@Colo MMJ the ceiling is 11.5 feet. I think the room is a bit too high like that. Also I need two rooms in this room, for mothers, clones ... If I can make a lower ceiling, I can seal the rooms and I have to manage a smaller amount of air. If I run in trouble in summer, I still can remove the selfmade ceiling I guess. Also I am using only 600/750 lamps. Can't imagine there will be so much trouble with proper ventilation...

@fn217 What would be a realistic prize difference to get the same with LEDs what I would get with three 600/750 Gavitas. The gavitas will cost me around 1500 Dollar in total.
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12 feet is perfect for the gavita 1kw DE
 
Sam&Max

Sam&Max

Active Member
Yodaweed said:
12 feet is perfect for the gavita 1kw DE
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Yeah but I decided to reduce the ceiling to 8.5 feet (260cm) because I don't want to heat with electricity now in the winter.

My ebb and flood tables are at 60 cm height. I will have no veg phase. Just switch them to flower after rooting.
 
jonsnow399

jonsnow399

Well-Known Member
Sam&Max said:
So far I didn't like what gavita was sending me. Two 1000W fixtures at each end of the table, shooting lot of light in the gaps around the tables. It took them days to send me that plan. When asking about changes it takes again days....

Because I realized that my ebb and flood tables have wide edges and I can't grow that many plants as I wanted, I added to my setup another table. So now I got four tables which in total result in an area of 4.60m x 1.05m where I can put plants into.

I reasearched a bit more and found the nanolux DE 1000W ballasts. They have 6 steps of dimming, from 600 to 1200W. I can use them remotely or put them horizintally at the fixture. I can use them with a nanolux reflector fixture or any other reflector with standard plug. That would mean, I could use now the nanolux fixtures and use the heat in winter and in summer I can use air cooled hoods with the ballasts and direct the heat outside. The fixtures and the lamps are pretty cheap compared to other fixtures. Also they offer different reflectors for different setups. And they have developed a software where you can controll your ballast over the internet.

I guess I will go with them. I will probably run them at something like 850 Watts (with maybe a slight spectrum change) and then when I swap bulbs after some time, I will decide again which bulb I will put in.

I am still not sure which reflectors and how many fixtures I need....
Click to expand...
I have the Nanolux ballast , good choice.
 
Sam&Max

Sam&Max

Active Member
Yodaweed said:
You could run a 6/750 flex in that area if you got decent cooling capabilities you could do several.
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Right now the temperature is just a bit higher than freezing point. I hope when I make the chambers and insulate them, then I can run three or four fixtures at something around 700 - 800 Watts with CO2 without the need of heating or cooling.

Actually I will distribute heat in another room too which is for mother plants, cloning and drying harvest. That room will be a bit smaller. I guess total amount of room (flower + mother room) which I will have to control the climate be like 16.7 x 12.2 x 8.5 feet (5.10m x 3.70m x 2.6m).
 
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jonsnow399

jonsnow399

Well-Known Member
Sam&Max said:
I read that the ballast is not FCC compliant? Do you notice that it is disturbing the internet or something else?
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I haven't noticed any interference. On the subject of heat, people say the DE is way hotter than SE but I haven't noticed much difference.
 
Sam&Max

Sam&Max

Active Member
I investigated a bit more and it seems like I will not go with the nanolux. My reasoning about that subject:

The standard reflector of nanolux is like the gavitas made for overlapping the light footprint with other fixtures to create uniformity. Also it has a very wide footprint. Here a video about that...

If using these fixtures I probably will need to work with wall reflectivity and waste a lot of light. Also I wouldn't create good uniformity in my SOG grow.

Then I looked into swapping the standard reflector into the 4x4 reflector of nanolux. It says that it is created for sending all the available light to a 4x4 area without creating much stray light. http://nanoluxtech.com/de-4x4-fixture/

When searching for information about the uniformity levels this reflector creates, I couldn't find much. But I found a light footprint diagram in this document... http://nanoluxtech.com/wp-content/uploads/2017/04/DEFNC-4x4-tech-sheet.pdf
To me it seems like this reflector is not creating a uniform light footprint. I asked the tech support several times this question, but they only answered the other questions which weren't about uniformity.

Also I think using a double ended 1200Watt bulb with a 4x4 reflector will create too much light and maybe be harmful for the plants.

I researched a bit more and came back to the Hellion adjustAWing. I had contact with the inventor of the adjustawings and it seems like the adjustawings were created for smaller grows not like the greenhouse style fixtures like gavita. Seems like the light footprints which the adjustawings create, would work great with my four 4x4 ebb and flow tables in a row. Also it seems like it has the philosophy of not to send huge amounts of light to the plants.

I saw a video where uniformity values were tested:

It had good uniformity values, but I was wondering if the μmol amount would be enough...

I then looked a bit into the discussion which amount of μmol is whishable:

https://loudbank.com/maximize-cannabis-growth-700-1500-or-2000-µmolm2s/

https://www.icmag.com/ic/showthread.php?t=311713

But I realized that these PAR meters are not very accurate with angular light even if they have cosine correction.

On the website of the adjustAWing I found some info about the spectral data of the lamp...
http://www.adjustawings.com/articles/spectral_data/
 
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jonsnow399

jonsnow399

Well-Known Member
Sam&Max said:
Also very interesting I found this grow room light planning tool:

SunLightSupply Lightning tool
https://www.sunlightsupply.com/content/lightingtool/lightingtool.html

Help for the tool:
https://www.sunlightsupply.com/page/lighting-layout-tool-help/
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I only use the ballast not the reflector. I was going to say that anyone using the nanolux should make sure not to touch the wattage selector. It will change too easily. I found my 750 bulb runnin at 1000 watt. I tape it now. never heard of a 1200 watt bulb.
 
Sam&Max

Sam&Max

Active Member
I don't know maybe it is a misunderstanding but here they write:

'We’ve pushed the newest & hottest technology in lighting to the next level. We’ve increased the standard 1150W output to 1200W, now producing a class leading luminous flux of 160,300 lm.'

http://nanoluxtech.com/super-de-double-ended-fixture/

Attached you find a picture of the spectrum at different watt settings from Nanolux.

I was told by them the following:

With regular incandescent lighting (black body) you have a spectral shift --- a shift to red.

With Plasma technology (High Intensity Lighting) you do not have a Shift. You only experience a reduction equal to it’s dimming all across the spectrum.

Basically, the spikes and curves on the spectral power distribution remain fixed to their wavelength.


The reduction is pretty equal across the board.


The minimal <5% change over a 50% reduction is literally nothing.
 

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