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Last time I was here, people were talking about a/c hps vs. Qb's and heat output. But that wouldn't be a fair comparison unless the Qb's were a/c also. I've had this done for a while already but I've just been busy. It's 2- Qb324's inside of a Xtrasun 64. I chose 324's because I couldn't fit 3-...

Still? Come on fellas. Its not normally like this. The few times I've needed help with any of my diy led builds, I have gotten alot of info here. People are people. No1's perfect.

I would be willing to try 1 of his lights. What website can I check it out at? If it looks worth it I'll do a side by side. I'm always down with better tech. What's the name of it? Or are there different models for different applications?

Wtf is really going on here. What does any of this have to do with diy with qb's? Am I in the right place or am I just super stoned? Yolo, I'm out.

I thought this thread was "diy with qb's"? What's all this lollygagging?

Search, "Plug n play hid duct cooled retrofit kit" on RUI. I don't know shit about computers or how to "link" and all that stuff.

Anything in front of the light source will diminish it. Even clear glass. Although I ran my hps behind the glass, and I grew that way for years. I'm gonna run my qb's behind the glass too. I figure I can deal with the light loss for a better cooling efficiency as I always have. It was 100°f...

It should be damm close but remember the led footprint will depend on spacing. Whereas the hps took advantage of the reflector it was in & the reflector made the footprint. That's why my Daystar 6's were kinda useless for retrofit. They were too small to replicate the same footprint with qb's.

Also, if you are trying to replace only 1200w of hps, u should only need around 700w of Qb. Depending on spacing and Qty of Qb's.

The specs on ur Blockbuster hoods show the glass frame is 25.6"×25.6". That seems a little big for a 600w replacement. My xtrasun's are 20"×21". It might be easier and less bulky to retrofit them into a 1000w hps replacement with 4-Qb's at around 500watts. Not sure if that would fit though. U...

I've completely converted my veg to diy qb120 fixtures. My flowering is in the process of getting 2 qb a/c hoods w/ 2-qb324's in each hood. So I have not done any flowering underneath em yet. But if u have problems with heat like I do, and you already have an a/c hood exhaust system in place...

Once my qb324's come in on Friday, I'm gonna be putting together an a/c fixture with 2-qb324's per hood. Hood is an Xtrasun 64. Driver is Hlg-320h-c1400b. Gonna be wired in series. Trying to replace a 600w hps footprint. I'll put up pics once I have it done. And when @Stephenj37826 or @robincnn...

Ya. I didn't mean for it to sound that harsh. I mean, I bought some 324s. Everything I've gotten so far is the bee's knee's. All of my vegative has been converted to 4000k qb's. I do not miss my 30lb. T5's. Goodbye & good riddance.

Well that's good to hear about. I was starting to rethink my purchase since the Qb324's kinda seem like the "red-headed step child" of the qb's. Nobody disses on them but nobody wants em in their house. I can hardly wait to get em wired n pumping out some photons. The few people that do have em...

Thanks alot booms

I think I read a few pages back Hitemwiththehine said he has one of the Nichia based fixtures. I'm assuming they are qb324s. Has anyone else here used the qb324s. I ordered 4 cuz I wanna put 2 per a/c hood and I'm trying to keep a similar footprint as a 600hps. I was just wondering how people...

Read the whole description on the Qb324's. It says the screws on those boards need washers. Non-conductive washers I guess. For that exact reason you just mentioned. Only reason I know is I just ordered 4 of them suckers. Edit: Those look like qb288s but those are the same wide-head screws that...

2700k qbs are what I just ordered. They had been kinda on sale. Not sure if they are still in stock. But I haven't fired em up yet. Waiting on the drivers to come in. But I think any kelvin qb's will be an upgrade from blurples(except 5000k for flowering). Good luck.

You guys are still kool and helpfull. Thanks alot. Does "yodaweed" still drop in. Sometimes it's fun to have some1 u love to hate. Probly the dumbest troll I've ever wasted time reading.

Yea, thanks. 619kt619 sent me that link too. It's just that it's more expensive and needs a seperate 12v power supply. Which I wouldn't mind but I might just go the AC route. It's really the total wattage that I'm after anyways.