Cutter Electronics: Complete DIY COB kits

fanleaves said:
So was thinking of swapping out my lighting in a 4x8' tent. Would 3x5 cob kits do the trick?
Click to expand...
Three (5) cob kits would be a good starting point for you. Approx 750w after driver losses. (813 watts at the wall)
750 watts x 56% eff = 415 PARwatts for approx 650 ppfd . good starting point for the first couple runs, if you like what you are seeing, you could bump up a little with another kit.
PPFDvs-growth.png
 
I have 2 10cob units ordered. If i mount the ballast remotely i will be using a little more than 10ft total of wire. The first cob will be less than 10ft but after wiring the cobs it will probably be over 10ft total. Do i need to go to 16awg and if so will 16awg fit into cob holder, or can i go 16awg from drivers to first cob and then switch over to the 18awg supplied with the kit?
 
Roguedawg said:
I have 2 10cob units ordered. If i mount the ballast remotely i will be using a little more than 10ft total of wire. The first cob will be less than 10ft but after wiring the cobs it will probably be over 10ft total. Do i need to go to 16awg and if so will 16awg fit into cob holder, or can i go 16awg from drivers to first cob and then switch over to the 18awg supplied with the kit?
Click to expand...
For my setup, I am using 14 gauge wire that was recommended by SupraSPL years ago. my runs are 18ft long from driver to first cob. using a mulimeter, I have no significant voltage drop.
http://www.amazon.com/Listed-Cable-...&redirect=true&ref_=oh_aui_detailpage_o06_s00
 
Thanks Gromau5. Did you use the 14 gauge between the cobs also, will the 14 gauge wire fit into the cob holders? and thanks for the videos, they convinced a 25yr HID user to switch.
 
Roguedawg said:
Thanks Gromau5. Did you use the 14 gauge between the cobs also, will the 14 gauge wire fit into the cob holders? and thanks for the videos, they convinced a 25yr HID user to switch.
Click to expand...
I used 18awg for the between cob connections. I guess I was just too lazy to fiddle with trying to tin and shove 14awg into the ideal holders.
 
Did anyone who ordered this kit receive other than a Pairui driver??

My kit just showed up with a Zhonhen, which from a quick comparison is cheaper and not boasting a 5 year warranty as far as I can tell.
 
Mark replied and informed me that it is a better driver than the Pairui and that the Mau5 kit will actually ship with either one based on availability.

So looks like it'll be ok ;-)
 
wsntme said:
Mark replied and informed me that it is a better driver than the Pairui and that the Mau5 kit will actually ship with either one based on availability.

So looks like it'll be ok ;-)
Click to expand...
Maybe put something up on the cutter website letting people know so there's no confusion in the future
 
Atulip said:
I noticed on the web page it lists both drivers.

http://www.cutter.com.au/proddetail.php?prod=cut2993

"1 pc LGSU250-1400D, 250 watt or ZPE 250-1400D 250 watt Dimmable driver allows the 4 COBS to be run at just under 50 watts, the sweet spot of wall plate efficiency( can run 5 COBs max)"
Click to expand...
Yeah, he mention he'd updated the site. Not sure if that was after my order (23rd) or just after the first kits and I overlooked it. Eitherway, all is well.
 
wsntme said:
Yeah, he mention he'd updated the site. Not sure if that was after my order (23rd) or just after the first kits and I overlooked it. Eitherway, all is well.
Click to expand...
Yes both drivers have 5 year warranty, the ZPE is actually a dearer driver but we have a policy that if we dont have a part in stock we will ship a BETTER alternative, never something less. ZPE is the supplier of our 400 watt driver for the 8 up kits and they make first class drivers
Cheers
Mark
 
with a 4x4 tent would it be worth running 16 cobs or would 12 be best?, would the extra 4 be worth it price wise and the extra watts or would it not really be as efficient for yields? i know more cobs i can dim but if they were all at full power would the be much of a difference?
 
insanehq said:
with a 4x4 tent would it be worth running 16 cobs or would 12 be best?, would the extra 4 be worth it price wise and the extra watts or would it not really be as efficient for yields? i know more cobs i can dim but if they were all at full power would the be much of a difference?
Click to expand...
At 1.4 amps you could do 16. I'm getting some bleaching with my 8 @ 1.75 & 4 3070's @ 1.4
 
insanehq said:
with a 4x4 tent would it be worth running 16 cobs or would 12 be best?, would the extra 4 be worth it price wise and the extra watts or would it not really be as efficient for yields? i know more cobs i can dim but if they were all at full power would the be much of a difference?
Click to expand...
If your goal is to take a firm grip of a gavita's dick, chop it off and then stomp it into the dirt, run 16. In any other circumstance 12 is more than adequate for a 4x4.

@wsntme glad you are sorted out. Lemme know if you need any configure advice or assistance.

@nl5xsk1 i like, I love it , I want some more of it. (Wait, what? Is that a song)
 
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