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I run 4 x the clu 1825 3500k and love them in my 3x3 on 16" centers. I can push each up to about 113 watts are 80%. I keep them around 90 watts and everything is happy. I went this route as it saved on heat sinks and cranked up I can blow the socks off my 1m square.

I like the temp probe to turn on and off fans but it seems pricey.

My ph isn't the issue. It's the salt and minerals. 400ppm from the tap.

No I enjoy differing opinions. I read about 5 threads so far today and all 3 have the same 2 individuals that I guess know everything. They are rude jerky and it is already turning me off of posting. Lots of great info until they jump in.

Every thread I read this same ass hat is yapping off. Does no one moderate these jerks?

So what about promix hp? And why does it not affect soil?

Well here is one I built for a friend. 4 x CLU58-1825 These are being pushed by 2 x HLG-240H-2100B They are currently running at about 100 watts per cob. I have the math done and now watts per cob based on potentiometer settings. Where I am lost is how do I know amount of light output per...

Doesn't it result in nutrient lockout?

I did and I love this setup. Took a day to get heat back down. I suggest using caution when pushing about 100 watts per cob I start making a lot of heat. Was up to 87 overnight. Just so new readers are aware they do make heat.

OK cool. I'll dim it back until I hit 83 or 84. Thanks

So I've just built my own Canadian version of your model. Well assembled in Canada I'm running 4x CLU058-3500k. Are you having any heat issues? My tent jumped to 86 overnight. Thinking there will be a sweet spot for heat and output. Thanks

I am going to run Hlg-240h-2100b and 2x clu1825 per driver. I just need to confirm these will be wired to the cobs in series correct? I don't have my potentiometer yet so can I still fire it up? Other than that I'm basically assembled and ready to go.

OK. So I am running out of rain water as my country is becoming frozen for the next few months. My wife hates RO due too the huge amounts of waste water. My water is quite hard. you need a softener or it scales everything up. Are there filter options other than RO that don't involve a...

well I found it on amazon.ca out of US but wont be here until the 23rd. I will be looking at cobs and drivers with no wire and cant find 20g solid core anywhere in this damn country.

Having trouble sourcing solid core wire that doesnt come from china(2mos) I am in Canada and any help would be appreciated.

Cool. Could you share a bit about how that dimmer is wired up in the junction box?

Dont see any cobs available there anymore. Looks to be sold out. Has anyone tried the heatsinks above?

Love to see a citizen version

Could you share your setup?

Mine was at 24 inches until week 5 of veg. As they stretch the new growth gets burnt. I am at 30" and watching new growth now.