I dunno what that is, a sales sheet maybe?, but it looks like a misprint somewhere, since the spec sheets for the individual lines don’t show that. Glad we cleared that up. lol 
Best advice is just follow the builds already spec’d out.
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Trust me, just go with someone else’s design unless you need something specific, you know? Or you have some materials.
I had the same goal as Nube, and I can not beat his on price. Pretty smart people have worked these builds out really well, so if you want something like they built just shamelessly copy it.
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The spec sheets do show that info fyi @nube its under the output section of each version
@GnomeyByNature if deciding between the 200 and 240 you get the 240 for a couple extra dollars, the xlg drivers are labeled as constant power as thats what they are they provide constant power output but the way they work if by setting the current you desire first for the circuit you have so in case above say you went with an xlg-240-h driver its usable range is 27-56v at 2400ma to 6660ma adjustable with the charts and such to stay at or under that 240w mark shown with there performance region graphs.
In this case due to the needs of building a series parallel array where you would be putting two strip in series then running them in parallel the voltage per string would be approx 38-40v which in order to fall with in that 240w and under range you would have up to 6000ma per the chart to play with.
The voltage of the strips will vary by their temperature and how much power is being fed to them, the XLG drivers will adjust the current slightly to meet your desired output while staying on what you set them at power output wise.
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Damn you’re right, whoops. I didn’t realize there was a second page of model numbers for the XLG-200 because they’re usually all on one. I’m sorry. 
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I will have to look for another source for the xlg-240, that was my first choice but the place I wanted it from (that didn’t have the customs tax or whatever) was all out 
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I’m not opposed to that, but I also like to learn how to fish if you know what I mean.
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If you want to learn how to fish, I’d suggest doing a little research and reading how to decipher driver and board electrical info and matching the two together. There’s literally a whole topic and several blog posts about it that will teach you everything you need to know at LEDGardener.
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I 100% have to read more from LED Gardener, great source 
I may give a call to Mean Well and see if I can’t talk to some tech to make sure I have a full understanding.
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Look up general DC electrical too, that will help you understand the circuit.
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I kinda summarized it a couple posts ago, though. It’s pretty straightforward. First you need to know how to grow weed, as that’s a prerequisite for everything else you’ll do. The more experience you have growing weed, the more relevant the details of the build will be. If you’re relatively new to growing, build a basic, proven light since none of the bells and whistles will benefit you in any way or do anything for you, at all, other than add complexity and cost.
- Figure out your area to illuminate and your budget.
- Determine if you’re doing veg or flower or both in the space.
- Use the basic guide of 25-35w/sqft to get your general target wattage. Going over that seems important to the uninitiated, but it’s really more harm than help in the hands of a nube.
- Pick a strip with specific goals of the space and budget in mind.
- Decide if you want dimming capabilities and which kind.
- Match driver(s) to strip with specific electrical layout (series or parallel) and in correct quantities to achieve target wattage.
- Buy parts.
- Build it.
- Grow and enjoy.
Don’t call MeanWell. They’re going to tell you to not build anything without knowing what you’re doing; they’re not going to teach you the basics of electrical engineering. Check youtube videos or something if you don’t want to read the sources at LEDGardener.
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Oh, if you want to learn go to YouTube. Hands down.
bigclivedotcom
EEVblog
ElectroBoom
She does more old interesting stuff than explaining, but Fran Blanche has a great channel too.
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Ran across this in my files thought I’d share. I created it when I was nerdin out with my G3 build. (thanks for helping me OG’ers) 
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After reading up on builds on led gardener I have a few questions.
- led gardener shows less strips on their builds than most here are using. So do I go by their design or use more strips.
- are heatsinks needed with the gen2 strips?
- could I use a steel bedframe I have in storage as my frame instead of aluminum?
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They just will be over driving the strips which you can do up to about 180% so figure you could get away with 40% or less strips if you really wanted, but there also cheap enough you can run them at nominal
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No
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if you wanted
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Thanks @Mr.Sparkle. I think I’m going to build one like @Grease_Monkey x 2. That way I shouldn’t have to overdrive them any. And I’ll go with 2 drivers so i have true portability if it’s needed. A 4ft long light can be unwieldy I’d imagine.
So that would be 22 strips and 2 drivers I need to get ordered up. Just about all the rest I can source locally for it.
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just go with 20 then you can get the gen 3’s from future electronics, or at least my suggestion
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Hey @joecool each of those questions have been addressed here in this very thread within the last month or two. I’d suggest searching for the details cuz there’s lots of other nuances already covered here.
We’re happy to help, but I’d humbly ask that you help yourself a little too. It’s tough for us to have to repeat the same answers to the same questions over and over and over almost every week when there’s a search function that works well. Not mad, just saying.
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@nube I have been reading the thread. It’s just I have issues with wrapping my head around certain things. .
Yes I know there is a very nice search function I have been here a while and used it for months before I ever made a post it’s just hard to use on my phone.
Yes my questions may have been covered but there is no need for a snide attitude towards a person because of their own issues. If you aren’t constructively contributing to the most recent question there is no need to post such replies especially if the question was answered. Not mad or anything my friend just saying.
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Here’s a question are 2 qb 288 to much for a 2x2 ?
Alright! With that post I’m feeling frisky this new year! I’m gonna build one with @nube’s direction. If I can build a house, grow good weed, I can build one.
I’ll just follow the steps and buy parts in stages so to make it affordable.
Blessings…
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