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Flood and drain is my fave. I use 2x50 gal res for each 4x8. 1x50gal for a 4x4. Nute change every TWO weeks. I make my own nutes, pretty much equivalent to AN connie. Not being cheap in 2 week changes, just lazy ;) Weekly res changes= pain the ass. Having big reservoir = less work. Having...

Interesting read. I'd dump the bubblers first. Second: What ph adjust you using? DON'T use citric acid. There's a shit-ton of organisms that will process that stuff like candy. Brown slimes especially. Ran into this issue once using citric.. PH rise daily! They laugh at my h202, slime...

I'm bored, so long answer ;) Most people don't use flood with coco. Too messy. You will clog your drain, pollute your reservoir, and over water your coco. But if that won't stop ya: You'll want to flood when your plants have dropped a good chunk of the water in their containers. Best way to...

That's lot of Veros ;) Whats the cost on those drivers at your buy point? I'm guessing you're covering about 100sq ft by those numbers? Wow. It will considerably cheaper active cool those than it will to passive. More labor and parts for active however..

Superthrive.. I know it works. I just can't bring myself to use something whose ingredients are a complete mystery and secret. For like 60+ years! Very interesting stuff however. WW2 they used it extensively for field camouflage operations in which they would transplant a lot of vegetation...

Meanwells run effectively at 50-100% of their rated voltage. That meanwell by spec will run 3.93 Vero 29's.. Yeah, a hair short of 4.. You are definitely running on the low side, but 2 vero is fine. you can add in another later if you want.

Theres nothing to explain that isn't common knowledge. These people are looking for 'shortcuts'. They want to use plant growth regulators to enhance yields.. Sounds ok. But if I feed you with a very unnatural blend of growth regulators, you think that's going to be good thing? If they introduce...

Calling a lot of BS on that paper and MOST of the conclusions presented about 'amino acids' effects on plant physiology. We had this discussion 10 years ago. Amino Acids mostly feed bene's is the PROVEN conclusion. The ag industry isn't really jumping on board because it will lower their...

So with dimming it should measure actual mA that I'm dialing right? (thx Bobby G).

Happened to me on first rail I made. I figured it out though. You just need the eyelet to be above the center of gravity. Basically, just move your eyelet up higher (above where weight is) if it isn't. With all the heat sinks riding the lower side, the c.o.g. is low on this build. I would make...

Design continues to develop. Light #3. Improvements: modular, 2-4 screws for any piece. Open design, but with good tight wiring (to be done). Plenty of room to add the breakout box (which will hold fan driver and wagos for all the connections), and also room for a dimmer (on order).. EDIT...

I was thinking the 5050 led strips. Most are listed as 12v, but a lot are listed 24v. http://www.ebay.com/itm/5M-300-600led-Non-Waterproof-IP65-IP67-IP68-5050SMD-Flexible-Strip-Light-12-24V-/321422890402?var=&hash=item4ad64c15a2:m:mPJWZfnfOU6Hh7MJ88ZArgg The blue and red for cloning or...

Picture. Vero 18 for scale ;)

Just kinda 'affixed' them to heatsinks. Wanted to check wiring and a few Chinese drivers.. Well, a bit of handling and one of the series came 'un-affixed'.. Oh yes, it lit. Brightly. And then the magic smoke came out.. lol. Chip literally unsoldered itself from the plastic round. Four points of...

Megmeet Switching Mode Power Supply model #Mango240-0500ay Input: 100-240v~50-60Hz 1.6A Output: 24v 5.0A (dc) Output cord is round with 4 pins and one connection on inner ring. Labeled: P1(+), P2(+), P3 (return), P4 (return) and the connection on ring is labelled : Shell (FG) Recycling place I...

Couple of cheap lights I hobbled together as proof of concept. (Prove to myself I could make these, lol.) Blew out a Vero 18 within 1 minute of running live voltage, lol. -Always secure to heatsinks... The lights are simple: Bridgelux Vero 18's x4. -Sourced from newark. One had a big black...

Well, meanwell drivers fit cree like splendidly.. If you can copy them cheap, more power to us. Obvious candidate is the HLG 185H-c700 and 1400.. B version for dimmable or onboard dimming is a plus.. But what would probably be more useful would be to make some drivers that fit those lovely...

My LEDs are so cold..

A couple FAQ's would fix what this 440 page monstrosity has become. Seriously, Growmaus has covered 99% of the stuff in this thread. I repeat, this 440 page is terribly inefficient. As a fellow LED user, surely you must concede this fact?!

Someone archive \ close this thread already. A 440 page 3 year old post that keeps getting updated is like living necro. Who really wants to try and catch up by giving it a read? Lets keep these posts short and relevant. Piss poor forum administration imo. /awaiting lashback for discussing...