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depends on the cob and driver for 2 meter is 6.5 feet so 42 sq feet you can do 24 cobs @1.4A will give you a ppfd of 890 You can run them harder and use less cobs or softer and use more cobs,

Wait until I had a little more for the light and Diy I would do 9 citizen 1818 or luminus cxm22 3 240-54 drivers 9 heatsinks holders and reflectors

Yes it will work but i would recommend https://www.metals4uonline.com/aluminum-angle-6061-3_4thsx3_4thsx1_8th cant beat the price of the value packs

I would say double scrogging the area out would be ideal

Upfront cost maybe a little more but you save over the long run not replacing bulbs every year the less ac needed to cool the room not to mention less electricity to turn the lights on. Im switching from hps to cobs and if the yield is the same I come out ahead because for me to turn the lights...

with the light you linked to yes. If you want to beat a hps with leds you should look into cobs.

Are you wanting a pre built unit or diy? You can save a little going the diy route. I would look into cob lighting.

you can run one but need 3 foot of clearance to the canopy. also you will need to add 6k btu of ac cooling per DE Cob leds run cooler more efficient and you dont need so much clearence.

Leds are not 3x the cost of hps A decent 1000w ballast is $200 a hood is $150 and $100 per DE bulb one for veg and flower $200 You can build a led light for almost the same price. citizen 9 1818 3000k $22 3 elg 240-54 $50 heatsinks holders and reflectors $20 each all you need is aluminum frame...

You can build a cob led for a 4x4 for about $500 each that will out perform a 1000 de here is how 9 citizen clu-048 1818 3000k $22 each 3 driver's elg-340-54-d2 $50 each 12 heatsinks cob holders and reflectors $15 Now all you need is 3/4 aluminum and wire $30 max

Yes there is always a trade off but also starting price @ $10 per cob cheaper For the smaller growers there is not a lot of difference but with the larger growers that need 50-100 cobs thats a good bit of savings.

This is what i did. I put the cob in the holder applied tim lined up the holder with 2 holes screwed it down https://www.dropbox.com/s/2ej77ezt27onos5/20161219_172414.jpg?dl=0 You can see the 2 holes you will use for the reflector holder then got the holder and used the other 2 holes and screwed...

But compared to citizen at $22 or luminus at$19 if you're running them @1.4A or lower yes if your buying 100 they would knock a couple bucks off each

I dont have a pic of the cob holder but here is the completed light https://www.dropbox.com/s/2ej77ezt27onos5/20161219_172414.jpg?dl=0

There is 2 holes for the cob holder and 2 different holes for the reflector holders

To know what driver to recommend what is your target ppfd? Also do you want to dim the lights or do you want sunrise and sunset effect? Cree was the standard until the newer cobs came out The vero citizen and luminus they are all cheaper than cree. By$10-12 a cob You also need less cobs for the...

Getting a pound per plant is feasible with the right setup and grower. Instead of 1 plant per 5x5 have 4-6 plants When you say a 4 month cycle you are talking 2 month veg time? Yes you will need climate control mainly dehumidifier and mini split ac Going cob led I would suggest citizen or...

You will not be able to move them at all once they are filled Are you really saving when you can get fabric pots a 5 pack for $12 https://www.amazon.com/Fabric-Pots-Gallon-Sizes-Round/dp/B00J1BYTD8?th=1 Have had some that are going on 2 years

Each room and light will be different if you are 18" from the canopy in veg and it's not bleaching or burning the tops then I dont see why you should raise it. The numbers I gave are a general starting point you can go up or down from there depending what you are trying to do.

No you gave the answer in your driver selection the hlg 185-36a are ran in parallel. You can have 4 cobs on the driver each cob will be running 1.3A @36V divide the number of cobs by output current so for that driver its 5.2A / 4