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    are those bridgelux strips?

  thats awesome when compared to CFL! from what I've read you need about 50-60 watts of CFL per square foot. 

  same diodes as the folux boards! :D

I can help you out with the LED. 

  actual CREE 3590 are great! and those look to be the right dimensions! These chips are also comparable @150lm/w https://cobkits.com/product/citizen-clu058-1825-80cri/

Welcome! Stop down here in Pueblo and visit us!

  California Lightworks has a good version of that but it uses a t5 or t8 UV bulb to achieve it. Theres another one but I can't remember the name of it.

  see all the wired together SMD chips on that COB? same thing that's in any other blurple light. 

  I'll take pics later tonight, but yes they are SERIOUSLY bright.

here ya go. I have a 185 watt driver to go with it too if you want all 4.   http://www.ebay.com/itm/192453889098?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649

6000 lumens at 50 watts? thats on the low side for COBs @ 120lm/w compared to 150Lm/W for HPS (600 watt), so even less efficient than HID lighting. but with those folux boards you're getting 198+ Lm/W AND emitting less heat.

I'm upgrading to these: http://foluxsolutions.com/#!/Helios-FH-350S-LED-Grow-Board/p/100252521/category=0

If anybody wants it, I am selling that light setup (the 6x Citizen chips)

  This is the square LED panel. http://foluxsolutions.com/#!/Helios-FH-120-LED-Grow-Kit/p/100331163/category=0

  good for vegging all around, I do plan on replacing them with 3500K. I got my hands on some of those Folux Boards in one of the threads. 80-90 CRI with choice of 3000K or 3500K or 4000K. 

I use COB lights. I use 6x Citizen CLU-048 1212 chips at 33 watts each.  Here are two threads on the subject.   http://thehotpepper.com/topic/66746-pexiepoos-18-glog-now-with-more-quantum-board-cob-led/   http://thehotpepper.com/topic/67253-caution-to-anyone-switching-to-cheap-bluered-only-leds/

  a 2x4 area would easily be covered by that configuration. You dont have to build a case for them. they are boards mounted onto heatsinks with waterproof power supplies that you set on top of the heatsinks or remotely mount

  If it's a 6 ft table you could get away with 2 of those folux FH-120 kits with a 240 watt power supply

  You change the wattage by soldering on a potentiometer to the dimmer leads on the LED power supply and it changes the current output. These are constant voltage power supplies. I am currently using 3000K but I am definitely going to get a 3500K as they are great for all around (Veg and...

how big of an area are you working with