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Which is the best HPS DE combo?

Discussion in 'Grow Room Design & Setup' started by Sam&Max, Nov 6, 2017.

  1.  
    Sam&Max

    Sam&Max Member

    Can anybody confirm that? Hanging the lamps close to the wall sounds strange and inefficient for my situation.
     
  2.  
    bottletoke

    bottletoke Well-Known Member

    Sure, gavita can. Email them.
     
  3.  
    bottletoke

    bottletoke Well-Known Member

    Heres a layout they designed for my first floor plan Screenshot_20171121-175343.png Screenshot_20171121-175327.png
     
    Sam&Max likes this.
  4.  
    Sam&Max

    Sam&Max 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...
     
  5.  
    Sam&Max

    Sam&Max 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....
     
  6.  
    Yodaweed

    Yodaweed Well-Known Member

    12 feet is perfect for the gavita 1kw DE
     
  7.  
    Sam&Max

    Sam&Max Member

    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.
     
  8.  
    jonsnow399

    jonsnow399 Well-Known Member

    I have the Nanolux ballast , good choice.
     
    Sam&Max likes this.
  9.  
    Yodaweed

    Yodaweed Well-Known Member

    You could run a 6/750 flex in that area if you got decent cooling capabilities you could do several.
     
    Sam&Max likes this.
  10.  
    Sam&Max

    Sam&Max Member

    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).
     
    Last edited: Dec 5, 2017
  11.  
    Sam&Max

    Sam&Max Member

    I read that the ballast is not FCC compliant? Do you notice that it is disturbing the internet or something else?
     
  12.  
    jonsnow399

    jonsnow399 Well-Known Member

    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.
     
  13.  
    Sam&Max

    Sam&Max Member

    Do you run your ballasts remotely with a cable or directly at the lamp fixture?
     
  14.  
    jonsnow399

    jonsnow399 Well-Known Member

    remotely.
     
    Sam&Max likes this.
  15.  
    Sam&Max

    Sam&Max Member

    Nice! How long is the cables? I did read that it depends somehow on the length of cables?
     
  16.  
    jonsnow399

    jonsnow399 Well-Known Member

    never measured. maybe 12 ft. I like to put the ballast low in winter and mount close to ceiling in summer.
     
    Sam&Max likes this.
  17.  
    Sam&Max

    Sam&Max 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/
     
    Last edited: Dec 10, 2017
  18.  
    Sam&Max

    Sam&Max Member

  19.  
    jonsnow399

    jonsnow399 Well-Known Member

    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.
     
  20.  
    Sam&Max

    Sam&Max 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.
     

    Attached Files:

    Last edited: Dec 10, 2017

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