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So, is 8x QB304 running at ~900w overkill for a 5x5? if I upgrade a couple heatsinks I could push them up past 1200w and grow plants on Mars. :D

M3 screws i believe. They usually come with either the heatsinks or the boards.

Any interest in seeing a step-by-step write up on how to put this together? All of this can be done with simple hand tools. I think the cost for all of the frame hardware to build two of these was about $50. Probably going to order a couple more heat sinks to play with alternative...

My order is scheduled to arrive Tuesday. I cant lie, I'm pretty excited to get started building lights. I am going to pull the 600w HPS I've got over my packed 3x3 and replace it with 4x QB. The tops are less than 12 inches from my cooltube now and are finally finishing their stretch. Today is...

It looks like a nice piece of hardware and all, but isn't this just more of the same? Arent there a half dozen fixtures very similar to this line already out there, at similar price points? I'm not looking to pick a flght here, just curious what sets this light apart from the others?

I think my drivers are gonna get here quicker than my boards. Arrow has free overnight shiping. I'm sure the guys at HLG have a ton of orders to work through.

These will be the first of many 4 board fixtures for my grow. I will be starting a build log here in the next week or two to chronicle the entire process, and hopefully allow those with experience to spot any potential conflicts or incompatibilities that i may have missed. I intend to build...

Well I bought my ticket to the QB club tonight boys. 8x QB304 3000k on the way!

I went with 4 HLG-320 for what I'm going to cobble together for now. Lots and lots of grow room to build next month. I'll probably end up ordering another 16-24 QB304's before it's all over with.

ooooh, Now I know who bought the last slate 3's that I had in my cart! Lol

I think I just peed a little. Now i have to change my pants before i blow an inordinate amount of money on QB304s.

@VegasWinner ive been following your thread here for some time. I think for sure you let the trolls get to you. Its hard not to. Keep your head up Sir. You came in with an idea and went through the whole process, setbacks included, and now have an excellent product to show for it. I'll take...

Yep, and without any studies done what.so.ever. on its safe use in cannabis.

Look up CHS and Azadirachtin. The leading theory for the cause of CHS is pesticide poisoning. Azadirachtin was never intended to be used on a product that isn't washed before consumption. (Like fruits and veggies) There are a great many growers, both commercial and hobbyist, that are treating...

Just let me know when you want me to use those lights in my new setup.. You've got from now to the end of August. Lol

I'm in the market to light up about 200 square feet of grow space too it looks like. I'm curious if this may be the most cost effective, efficient way to do it. @Stephenj37826 you mentioned some hardware getting out into the hands of growers for testing? Any word on when us peasants can get a...

Good evening. I'm interested to know what your recommendation would be to light (3) 6' x 6' flower areas, (1) 6' x 6' veg area, and have some single cob setups to use as necessary around the grow op. All areas will be sealed and totally climate controlled, with up to 1500ppm co2 in use. I have...

Id love to see more info on that light, @Stephenj37826