Choice is between 4 cobs, can't tell them apart. Help?

HandyGringo

HandyGringo

Well-Known Member
I've heard 3500k is the best spectrum for cobs, so I'm getting 4 or 5 of those. I want 36v. And I want the latest most efficient chip, so 3590.

With those 3 requirements, there's 4 options.. And I have no idea what the difference is between the 4. Can anyone dumb it down for me?

http://www.mouser.dk/Cree-Inc/Optoe...-8usfj?P=1yzs6ioZ1yzvpusZ1yopm3u&Keyword=3590


1de5fe91f0534f30850d5bdc0a4ec7e6.png
 
Now that you got your choice narrowed down to these 4, which are all cxb3590 3500k, 36v. The differences of the 4 are binning and cri. Of the 4 options you have pulled, 3 are 80 cri, 1 is 90cri. The higher cri option is always the most expensive. The binning can be found in the part number after the H, which are CD, CB, BD, CD, and if you download crees pdf on 3500s you can see the number for that bin of leds. Leds when manufactured have variances in voltage and output, they test them and places them in bins accordingly so we get a more consistent product. The leds you get will always be at least as good as the numbers, hopefully better. Fyi there are places to get 3590s cheaper than mouser, i have order some my cxas and cxbs from mouser, i was pleased with them, but i did pay more than i could have.
 
Banana444 said:
Now that you got your choice narrowed down to these 4, which are all cxb3590 3500k, 36v. The differences of the 4 are binning and cri. Of the 4 options you have pulled, 3 are 80 cri, 1 is 90cri. The higher cri option is always the most expensive. The binning can be found in the part number after the H, which are CD, CB, BD, CD, and if you download crees pdf on 3500s you can see the number for that bin of leds. Leds when manufactured have variances in voltage and output, they test them and places them in bins accordingly so we get a more consistent product. The leds you get will always be at least as good as the numbers, hopefully better. Fyi there are places to get 3590s cheaper than mouser, i have order some my cxas and cxbs from mouser, i was pleased with them, but i did pay more than i could have.
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Yeah but my options are limited since I'm in Europe. But, what does the higher cri option mean for me?
Is it worth getting?

Also if the other 3 are identical cri wise, what sets the apart?

This is so confusing :P
 
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HandyGringo said:
Yeah but my options are limited since I'm in Europe. But, what does the higher cri option mean for me?
Is it worth getting?

Also if the other 3 are identical cri wise, what sets the apart?

This is so confusing :P
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Spectrums are complete different from 3000k 80cri to 90.
 
3500k 80 cri seem like the best cree choice if you need to veg and flower. seems a lot of people who flower only prefer the 3000k 80 cri as well. both will be so far ahead of what you have now that you wont care.
 
CobKits said:
3500k 80 cri seem like the best cree choice if you need to veg and flower. seems a lot of people who flower only prefer the 3000k 80 cri as well. both will be so far ahead of what you have now that you wont care.
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Thanks man, it's easy getting lost in this process because there's so many options.

What do you think of this driver? The HLG-240H-C1400B? I plan on using it with 4 or maybe 5 3590x 36v cobs at 1400mA.

http://www.mouser.dk/ProductDetail/...2Xko16N7NzfLNm5hw2mcC2eLkMaIMJnJ6SoquF7Ue0w==
 
HandyGringo said:
Well most used must be a good thing right? Like for a newbie like me who has 0 clue what he's doing.. I should go with the tried and true methods, no? ^^
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right...intensity 1st. and notice I didn't say any particular spectrum, I like diversity.

I merely mentioned fact. Whether that is tried and true? No not necessarily. Being a beginner is actually better imho, because you have not learned bias yet. :)

Its never that simple :peace:
 
Greengenes707 said:
How many white spectrums have you tried. Not mixed...how many solo spectrum test have you done?
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Gene.. just stop dude. Honestly. You love to just stir shit up. I'm going with what @Growmau5 tests concluded. K?
You ignore me when I try to ask you kindly why you're upset at me and keep mentioning your company to people who want a ready made fixture to help you out, but this is the first thing you say to me? It's lame, dude.
 
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HandyGringo said:
Well most used must be a good thing right? Like for a newbie like me who has 0 clue what he's doing.. I should go with the tried and true methods, no? ^^
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Only you can determine what qualifies as tried and proven methods.

You can look at youtube videos and grow journals. But those can be, and often are, faked. There are a quite a few unscrupulous vendors out there posting their so called results without any verification.

You can use google and do some searching. There is some good research out there that can help you decide.

But ultimately, you have to decide what is best for you. It is your environment. Plus you may not have any skill or luck with plants. In that case it doesn't matter if you are running 1000w HPS or a 8w A19 bulb.

The science points to white light weight towards more red as being more beneficial for flowering and fruiting plants. For vegetative plants, more blue works better.

As was mentioned before, you can't go wrong with either so you are fairly safe. You could probably mix them up as well, spread them out between 2700k, 3000k, 3500k, 4000k as you don't have to stick with just one spectrum. The opinions you get will vary wildly based on people's different experience.
 
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