What's new
  • ICMag with help from Landrace Warden and The Vault is running a NEW contest in November! You can check it here. Prizes are seeds & forum premium access. Come join in!

LED FAQ) Building and DIY

CoCoSativas

CoCoSativas

Active member
REALSTYLES said:
I'm not a troll I'm a Gargoyle. Why do I need to troll? Just look at what I do. No copy paste


View Image


View Image

I know what I'm talking about Dion doesn't. He did this to himself by stalking me. I'm well know on other sites for proving points and hated.
Click to expand...

Yo gargoyles are statues bud. You know that means being still and silent right? I sure dont want to hear gargoyles talkin.

Why dont you hash your shit out through pms instead of wasting space on threads, arguing like a little girl... dion puts alot of effort into this so the rest of us who have no clue can learn a thing or two. He spends his time seaking inforation and doing product lookups for anyone who asks.... I know because ive asked him to look at some stuff for me, and he was very helpful.
Theres no doubt your grow looks nice, so do your lights. However, that dosent mean you need to be all over someone you dont agree with. I dobt know about this stalking buisness, besides its the internet, its hard to actually stalk anyone, anyway why dont you move on, do your own thread and leave this one like you were going to? When I say im leaving a thread I dont come back. Why would I? Its a waste of my time, and degrades my credibility.

Anyway, can we just get back to the thread? You tried proving a point, maybe some get it, and some dont. Anyway moving along....
 
Dion

Dion

Active member
dont worry about realstyles- he has a nice looking setup and he is doing a tutorial thread for his desighn which will help people so im pleased

this is an faq thread for discussing how to match the components but he feels he needs to show off and talk shit about me without actually pointing out any mistakes or misinformation in my posts so ill just keep doing my thing and help those who want it

ive been building leds for 3 years and using them to grow for over 7 so ive watched the tech change- we shall see how he feels about spending all that money when the newest better chip hits the shelves (which seems to happen at least once a year)
his approach is different(not dissing it) similar to what i was doing 2 years back but seen as price is a huge consideration for me my approach has evolved- obviously for him price isnt such a factor or perhaps he doesnt really understand how to desighn these lumineers and just uses a recipe given to him? the more i read from him the more i lean towards that conclusion
anyway its great to have more diy lighting enthusiasts here at icmag


@BC
so if u put in L per $
2540w2=412
3050x4=268.9
3070ad=221.2
 
Last edited:
J

J-Icky

Active member
Ok so I know this thread is mostly about cree cobs but I have a question about bridgelux that really goes for any cob, I think at least.

But I was wondering if it would be possible to run 2 of these, http://www.digikey.com/product-search/en?mpart=BXRC-30E4000-F-23&vendor=976 , on a meanwell lpv-100-48 driver? The cobs run well at 1.05A and 28.6v so I was thinking 2 of them should run on a 2.1A and 48V driver, giving each cob the 1.05A and roughly 24V. Or is that not how it works.

I know last time I posted I was talking about the cxa2530s but these are much better on the price and i'm down to either 6 of the vero 18s or 3 of the vero 29s. I know a single vero 29 would run fine on one of these drivers while giving more watts but I'd prefer the better spread with 6 18s along with the ability to toss in a 4000k and 5000k cob in with 4 3000k instead of just 2 3000k and a 4000k.
 
Dion

Dion

Active member
J-Icky said:
Ok so I know this thread is mostly about cree cobs but I have a question about bridgelux that really goes for any cob, I think at least.

But I was wondering if it would be possible to run 2 of these, http://www.digikey.com/product-search/en?mpart=BXRC-30E4000-F-23&vendor=976 , on a meanwell lpv-100-48 driver? The cobs run well at 1.05A and 28.6v so I was thinking 2 of them should run on a 2.1A and 48V driver, giving each cob the 1.05A and roughly 24V. Or is that not how it works.

I know last time I posted I was talking about the cxa2530s but these are much better on the price and i'm down to either 6 of the vero 18s or 3 of the vero 29s. I know a single vero 29 would run fine on one of these drivers while giving more watts but I'd prefer the better spread with 6 18s along with the ability to toss in a 4000k and 5000k cob in with 4 3000k instead of just 2 3000k and a 4000k.
Click to expand...

this is exactly what this thread is for-the intro is just an overview and some basic recommendations

fyi the vero 18s at 1050mA run at 29.3v( from bueno time)
it doesnt work exactly like that when we wire in paralel we share the current when we wire in series we share the voltage

picture.php

so here the leds are run in series(often called strings) in this case the leds share the voltage from the driver so to do this you need a driver that can handle the total of all the chips volt's( in ur case 6x 29.3v=175.8v)

picture.php


if we wire in paralel the current will be shared
so in your case wiring 2 cobs(single led on each string) would mean the 2.1A and 48V driver would share its current 2.1A between the 2 chanels(2.1A/2 = 1.05A still 48V)

picture.php

go nuts !!!


ok so:
The cobs run well at 1.05A and 28.6v
But I was wondering if it would be possible to run 2 of these on a meanwell lpv-100-48 driver?

maybe: the current if divided in 2 will be fine i just dont know how low the voltage can go on these drivers( couldnt find it on the spec sheet) but we already know from bueno that the [email protected] pull 29.3v

on a side note unless u really know what u r doing its better not to run a single cob on a string when wiring in paralel and if using more they need to be tested for V
if u dont have the tools to do this forget about paralel wiring and stick with series
there r plenty of meanwell drivers that can run 6 vero 18s in a series
 
Last edited:
B

blimblom

Member
Very nice tutorial. Its been some time since I last joined the icmag, so probably Ive missed some trends

I have built a LED light of 60W (consumption on the wall) something like 4 years ago, by using moslty red and white lights with a dash of blue. I have a small grow room (30x60cm) and so far Ive been very happy with the results.

Applying screen of green methods, I get a 1gr per watt grows without me being verdantgreen (ie super gardener).

I see now that people go mostly for white spectrum LED growlamps, so I would like to ask what created this trend?



As for drivers another very nice approach is using small LED drivers based on the pt4115 chip. They usually cost around 2 euros each and can drive LEDs up to 30V. for a super cheap and safe approach you can use a Laptop charger of 19V and then create parallel strings of pt4115 drivers, driving 5 leds in series each (for white/blue LED)
 
Dion

Dion

Active member
the trend for white lights is to do with the spectrum of these cobs and also the debate over ir red vs blue etc but i dunno really i guess the ease of using COBs and the results seen from them?

yes using a boost buck driver (dc to dc) can be a way to do this-but seen as most of us want to use cobs(over 30v each chip) its becomes tricky
here is a newer thread looking into exactly that

https://www.icmag.com/ic/showthread.php?t=306391

also dunno what chips u used but now we see a lot of cc not cv in the chips

tnx for stopping buy feel free to hang out
 
B

blimblom

Member
@Dion thanks .

my setup is this,

I understand that the COBs make your life easier as you only have to buy and install fewer chips. I see in the thread that this is the trend now, b

From my experience though all the non cree COBs are quite unreliable in terms of performance. I have made an extensive test of the usual 10W china COB LED (1eur each) and my results differed by a margin of 100%


on the cree side of things, 10W cob cost around 5eur and the big 100W you propose costs around 55eur, which can account for a hefty sum. A 100W led is also aimed in bigger grow rooms (as you need to put 3-4 of them in order to account for a more distributed light setup


my aim was always a small grow (around 50-60W) so 3W LED being used at lower amperage (around 500mA) . Hence my pt4115 proposal, and hence my red/blue/white setup.


Im reading more about this new current trend of only white cob, maybe if a friend of mine decides to make his own grow box, I will persuade him to go this way in order to make a comparison :)
 
Dion

Dion

Active member
i think the 2540 is a great chip for tiny spaces
also bc has done great work that suggests the2530 is better value

of course u can always get other cobs
 
V

vinnythebat

Member
illumitex F3's

illumitex F3's

Hey Dion, great work thanks. Im doing some planning for a light and was looking at illumitex website and cant find any info/ data sheets on there leds. Do you have any info on the F3 chips?
 
CoCoSativas

CoCoSativas

Active member
Dion i have another question.

If i do the diy way, can i use the chips you use on the same fixture as those cobs realstyles uses? Like some of each? Would they require seperate drivers? Could they be wired inline (cobs and chips) or do they run at different curents?

I dont know shit about this stuff, and i kinda feel like a fuckup askin g what feels like a stupid question.. Hopefully you can sort it out for me
 
Dion

Dion

Active member
vinnythebat said:
Hey Dion, great work thanks. Im doing some planning for a light and was looking at illumitex website and cant find any info/ data sheets on there leds. Do you have any info on the F3 chips?
Click to expand...

hey

so the data sheet is here

http://www.illumitex.com/wp-content/uploads/2012/03/CUT_SUREXI_AD44.pdf

spectrum
http://www.illumitex.com/illumitex-leds/surexi-horticulture-leds/


and ppfd calculator

http://www.illumitex.com/files/ppfd-calc.php


i should warn you that this ppfd calculator yields significantly lower numbers than measured results
take a look at growers house review of the neosol ds and the numbers they have-then put those specs into the calc u will see what i mean on average these chips consume 5w so it is recomended to use 4-5 per sq ft

there are larger models too though-ask if u get stuck

i suggest you take a look on amazon(if u are in the usa) because there is a guy selling 25 packs of the f3 for $200( vs 10-15 per chip on mouser)

also there is a guy on amazon selling premade fixtures(diy style) that cost less than i can buy the parts for)

but i have to ask why r u considering the surexi chips? how big of a space is this for? f3 so i assume for flower- gonna cost $$$$ asume $50 per sq ft for awesome results

they r super duper efficient though and grow plants great
 
Dion

Dion

Active member
CoCoSativas said:
Dion i have another question.

If i do the diy way, can i use the chips you use on the same fixture as those cobs realstyles uses? Like some of each? Would they require seperate drivers? Could they be wired inline (cobs and chips) or do they run at different curents?

I dont know shit about this stuff, and i kinda feel like a fuckup askin g what feels like a stupid question.. Hopefully you can sort it out for me
Click to expand...

not a stupid question at all( u are referning to the illumitex chips?)

because the dif chips have dif requirements both in voltage and current its not possible to use the same driver

however u can def rig them to the same panel just on a dif circuit
 
V

vinnythebat

Member
The main reason is that i have a amozon gift card from Christmas and can use it to buy the chips. They will be used on a 2x2 modular scrog
 
CoCoSativas

CoCoSativas

Active member
Dion said:
not a stupid question at all( u are referning to the illumitex chips?)

because the dif chips have dif requirements both in voltage and current its not possible to use the same driver

however u can def rig them to the same panel just on a dif circuit
Click to expand...

Yes i was reffering to the illumitex chips.

I see why you are all over those chips. I watched a review video. As they raised the fixtures (neosol ds) there was very little drop in the par. To me, thats very impressive.

Realstyles uses a white coloured cob right? Theoretically it would make sense to use those cobs with the illumitex chips for a broader spectrum right?

Its very helpfel to know it is possible to put those lights on the same board. Ill have to consult you more on this.
 
You must log in or register to reply here.

Latest posts

Latest posts

Top