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1 6 inch fan dont have that 6" intake hole in the cab just attach it to the carbon filter inside the cab. The location of the fan would be sitting on the exhaust port of the cab blowing up so you will be pulling your air though the carbon filter then the cool tube and out the cab. Don't need the 4"

I would put a 6" carbon filter on the intake of the duct and put a 6" fan sitting on the top of the box on the exhaust port.

What size fan for the 6" duct?

I will see you on saturday

The ELG B yes can dim to 0 but the D2 with software dimming will only dim to 10%

Nice Job so far...... Do you have the uvb on all the time?

I forgot heatsinks in the earlier post Here you go Citizen.1818C4.3000K 9 COBS @1.4A ON 5.88 PROFILE HEATSINK 16 SQ.FT. CANOPY 93% EFFICIENT DRIVER @10 CENTS PER KWH Total power watts at the wall: 704.3 Cobs power watts: 655 Total voltage forward: 468 Total lumens: 97595...

DIY I would use 9 citizen 1818 or luminus cmx22 $170 - $200 depending on the chip 3 Hlg 240-54-b drivers $210 or go with the elg series and get them for $153 Aluminum angle and wire misc $100 The prices do not include shipping but as you can see it can be done

Power going into the driver is probably 110v AC and the output of the driver is DC have you connected a multimeter to it and see if there is voltage? Multimeters are $5 at harbor freight if you dont have one its going to be really hard to find the issue

No a cmh will not work. Since you have hps and not de the base of the light fixture is a mogul socket cmh are different you will also need a different ballast. The cheapest way to get into cmh is http://growershouse.com/ceramic-science-315w-cmh-light-conversion-kit You will see the difference...

To find out if it it to much for the circuit add up the wattage for all of the items you want to use on that circuit and convert it to amps http://www.rapidtables.com/calc/electric/Watt_to_Amp_Calculator.htm then you need to know the size of breaker.

Sorry to tell you but chop it down and start over its male

If he is running 240v it would take 70A for 15 lights here is the calculator I use http://www.rapidtables.com/calc/electric/Watt_to_Amp_Calculator.htm I wouldn't think about having them on 110v If i were you call a couple of electricians in your area and get a few quotes. Tell them what you...

how many plants under it if you only have 2 or 3 then the photon but if you have 4 or 5 then timber

When I said add a 4x8 tent for veg the rest of the shed is your flower room. You cant have the light leaks thats why I said to put the veg in the tent. I had my sub panel installed at the same time I upgraded from 100A to 200A and 70A just for the flower room. to upgrade the panel and install...

You are looking at 2 different cobs yes they both are citizen but they have several different models the one from robin is the 2nd top cob from citizen 1 step up from the 1818

Citizen is what I have for my room I need 48 citizen clu048-1818 if I went with cree3590 I need 72 for the same area same wattage same ppfd Edit= I am getting quantum boards for veg robin has the 1812 cob and timber has the 1212 and 1818 depends on the setup

I would go with timber

Thats my issue I dont want to limit my use especially for pain and more. Im there with you old school started in the late 70s Here in CO the shatter is more than double the price of flower. If you are ever in CO hit me up ill donate you a dab or twobongsmilie

You can get a tuff shed 12x12 for 3k and then insulate it and have a4x8 tent inside for veg. You can rent a digger and dig the trenches yourself if not will add a few hundred just for the trench. Adding a sub panel is easy. Water line depends on your frost line here it is 3' you can insulate it...