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Good news, LCK-LED refunded my money. They said they could resend them? or refund me.

Look at the data sheet at the bottom of that site. There are z4's and more you have to ask them

NIICE! What a monster that will be.

Enjoy the learning curve.:weed:

My temp's go over 80 f every once in awhile, mmj can handle some pretty good temps. I was over 90 once for awhile (a little too warm) and no ill effects. A day time high of around 80 is probably perfect. Just me and my experience.

http://www.alibaba.com/product-detail/CREE-CXA3070-Original-CREE-COB-LED_60022188146.html you may want to check these out, who knows? 10 min. order

And more from alibaba http://www.alibaba.com/product-detail/CREE-CXA3070-Original-CREE-COB-LED_60022188146.html

I went with the 5.886" it cost less than the 4.9". Thanks for all the information from all of you volunteers.

Heatsinkusa call to inform me that they are out of the 4.9" profile. So now I get to wait up to 7 weeks, oh boy. It'll be something to look forwards too anyways. You guys bought em out last week.

Well, I ordered heatsinks for project and cob holders and another driver. There went my allowance for awhile. Just under $1000 so far, mostly hardware left to get now.

Thank you, I'll get it from here (I think).

I will have 4@700 and 4@1050 and 2@800 so there we are.

PERIMETER IS 35.270 ?

Not sure about perimeter. Your talking to a retired roofer who is lucky to absorb anything. I know a perimeter is on a roof, all the outside edges.

Let's say I use a 4.9" profile, could someone help calculate what is needed for above mA's. Much thanks.

If anyone wants to bid on some CXA3070 3000Ks, there are some on ebay pretty cheap so far. Might get lucky.

what is a good 3590 heat sinks for passive cooling @1050mA and 700Ma and 1400mA. I'm a little confused right now (THAT IS NOTHING NEW) .:-?

Just put in order for some 3590's, Jerry said will custom make the 36vf version. they only stock mostly the 72vf version. Doe's more light come from higher voltage or are they more efficient or both?

Just got email from Jerry, newest cobs in the world. CBX3590 $51.00

He just emailed and said wait 2 day's because customs may have slowed. I am too let him know later this week if they have not arrived. We'll see.