DiY LED - Cree CXA3070

bicit

Well-Known Member
I may just buy some for the hell of it, as they're not too expensive but I'd like to get the right angle for my Vero 18 (~90*). Then I could do some testing on possible overheating hissues.

Ideally, huh? :joint:

Link to what the IP-65 test simulates: http://www.budind.com/blog/2014/02/the-mysteries-of-ip-rated-enclosures-explained/
Whoops, IP-67 I think. I don't think anyone would have to worry about high pressure water jets. However getting dropped into a reservoir of water is a very real possibility.
 

AquariusPanta

Well-Known Member
Whoops, IP-67 I think. I don't think anyone would have to worry about high pressure water jets. However getting dropped into a reservoir of water is a very real possibility.
IP-67, if I read the description correctly, requires the fixture to be immersed under water. No way..

That would have to be one sealed up package in order for nothing to get ruined. Are there currently any LED/COB fixtures with an IP-67 rating??
 

1947 Boy

Member
What is the difference between Vero 10 BXRC-50C1000-B-04 and BXRC-50C1000-B-24?
Cannot find specs for the -04
I am going to use Vero 10 for vegging.
 

alesh

Well-Known Member
What is the difference between Vero 10 BXRC-50C1000-B-04 and BXRC-50C1000-B-24?
Cannot find specs for the -04
I am going to use Vero 10 for vegging.
They've just updated Vero10 recently and made the original data sheet unavailable. There's no difference in 5000K 70CRI version though.
 

CellarDweller

Well-Known Member
Not that I am aware of, osram however does have a IP-65 rating.
http://www.osram-americas.com/en-us/products/display-optic-specialty-lighting/Pages/ZELION-HL-Horticulture-LED-Fixtures.aspx

Truth be told, noctua already has IP-67 rated fans, the meanwell HLG series is also IP-67 rated, waterproofing electrical connections is fairly easy, the only difficult part, is protecting the emitter itself.
I really do love looking at those blurple fixtures now..........I just don't understand why people seem to think it's a good idea to spend over $500 on a fixture that has very little actual power and has half the PAR wavelengths removed!

Thank goodness for you people and the DIY options now open to us as a result of the good work here :)
 

1947 Boy

Member
They've just updated Vero10 recently and made the original data sheet unavailable. There's no difference in 5000K 70CRI version though.
Thank you alesh.

Would 5000K for vegging and 3000K for flowering give good results without messing with red/blue LEDs?
 

CellarDweller

Well-Known Member
I bought some Artic Alpine 11 plus and they have thermal compound already applied, its supposed to be top of the brand, is it enough?
http://imgur.com/FYdHxYC

Thanks!
I think it really depends how you attach the COB to the surface and whether the whole cob is sitting in the thermal paste. Supra did some tests and apparently the stock paste is perfectly good. So assuming your cob is covered you're fine.
 

Pantar

Member
Ok, im using Vero29-CXB3590, was a bit worried about the size of the cob, im using kapton, and you can probably cover this paste when drilling.

Thanks!
 

CellarDweller

Well-Known Member
5......no.......2.......no.........say what?

Disclaimer: I am writing this with the best possible intentions. I've re-read the answer that I have written and it comes across as very patronising and very rude.....but I promise you, that is only because it's impossible to put "tone" into a post and because it is impossible to be succinct without sounding like a rude and patronising b@stard. Please believe me when I say that I wrote the below in an attempt to help you.

You're a new member and before you get jumped on for asking a pretty blunt question (we're on page 171 of this thread alone .....so clearly you haven't taken the time to read any of the reams of information that is contained on this thread)......I'll give you some variables:

1) What are you measuring the 400W HPS on? PAR? umol/m2/s? Lumens? Unicorn rainbow farts? Serious question though
2) How far will you keep the LEDs from your canopy? (there is a very well known degradation of light/distance equation......oh just look it up)
3) What sort of reflectors/spread are you looking for?
4) How hard will you drive the LEDs?
5) What sort of efficiencies are you looking to gain?
6) What sort of bulb are you currently using?
7) Try asking this question instead:

"I currently have a 400W HPS from "put name of bulb here". It runs at "put % here" efficiency, meaning I get "put actual radiant W value here". As I have to place the bulb "put height above canopy here" above my canopy, the actual PAR strength of the light I am getting at canopy level is "put umol/m2/s PAR value here". Currently the light spread is "put spread size and some indication of difference between edge and centre" and I would like to achieve "put the same/better here" in a space that is "put size of space here".
I would like to replicate the spectral wavelength distribution of my HPS bulb "put the specific brand of bulb specification sheet figures here" and so I am looking at "put the specific temperature of CXA3070 you are looking at here and then also consider the different Bins that are available". In order to get a similar efficiency level, with a similar PAR strength, over a similar size space, with a similar spectral wavelength distribution.....how many CXA3070s would I need and what would the ratio be between the various temperatures?"

Now assuming you have actually bothered to read all of this......my question that I prompted you to ask above is what you just asked the people who have spent literally YEARS testing, evaluating and publishing their results......only all of the information anybody would need to answer your question is missing (hence my "put this information here" prompts).

But allow me to make this blindingly easy.

Unless you know precisely what sort of performance you're getting from your SPECIFIC HPS bulb/reflector set-up, then ANY kind of attempt to answer your vague question will be a lie.
 

REALSTYLES

Well-Known Member
5......no.......2.......no.........say what?

Disclaimer: I am writing this with the best possible intentions. I've re-read the answer that I have written and it comes across as very patronising and very rude.....but I promise you, that is only because it's impossible to put "tone" into a post and because it is impossible to be succinct without sounding like a rude and patronising b@stard. Please believe me when I say that I wrote the below in an attempt to help you.

You're a new member and before you get jumped on for asking a pretty blunt question (we're on page 171 of this thread alone .....so clearly you haven't taken the time to read any of the reams of information that is contained on this thread)......I'll give you some variables:

1) What are you measuring the 400W HPS on? PAR? umol/m2/s? Lumens? Unicorn rainbow farts? Serious question though
2) How far will you keep the LEDs from your canopy? (there is a very well known degradation of light/distance equation......oh just look it up)
3) What sort of reflectors/spread are you looking for?
4) How hard will you drive the LEDs?
5) What sort of efficiencies are you looking to gain?
6) What sort of bulb are you currently using?
7) Try asking this question instead:

"I currently have a 400W HPS from "put name of bulb here". It runs at "put % here" efficiency, meaning I get "put actual radiant W value here". As I have to place the bulb "put height above canopy here" above my canopy, the actual PAR strength of the light I am getting at canopy level is "put umol/m2/s PAR value here". Currently the light spread is "put spread size and some indication of difference between edge and centre" and I would like to achieve "put the same/better here" in a space that is "put size of space here".
I would like to replicate the spectral wavelength distribution of my HPS bulb "put the specific brand of bulb specification sheet figures here" and so I am looking at "put the specific temperature of CXA3070 you are looking at here and then also consider the different Bins that are available". In order to get a similar efficiency level, with a similar PAR strength, over a similar size space, with a similar spectral wavelength distribution.....how many CXA3070s would I need and what would the ratio be between the various temperatures?"

Now assuming you have actually bothered to read all of this......my question that I prompted you to ask above is what you just asked the people who have spent literally YEARS testing, evaluating and publishing their results......only all of the information anybody would need to answer your question is missing (hence my "put this information here" prompts).

But allow me to make this blindingly easy.

Unless you know precisely what sort of performance you're getting from your SPECIFIC HPS bulb/reflector set-up, then ANY kind of attempt to answer your vague question will be a lie.
Good looking out for the new guy because his question was vague.
 

fxniqab

Member
A led panel that i can harvest as much as with a philips son t pia green power 400w in a adjust a wings avenger medium and a lumatek 400w ballast.
 

CellarDweller

Well-Known Member
A led panel that i can harvest as much as with a philips son t pia green power 400w in a adjust a wings avenger medium and a lumatek 400w ballast.
My work here was done when I helped you ask a question the Jedi's here would be able to answer (only because I have asked so much and read so many "successful" questions.)

That's as far as I can go though.......good luck in finding someone that knows what your current set up can do.
 

CellarDweller

Well-Known Member
I dont get it. I told you exactly what lightning i am using
And I told you (albeit obliquely) that I have no idea what that means......I have never used HPS, never seen the set-up you have and therefore cannot help you.

BUT

Now you have published the right information for somebody to help you, you might get some help :)

Have a good night
 

Ongaps

Member
Hi guys ,im about to order some CXB3070 AD bin ,but the seller only got the 3 step.I would really like to know whats the difference between 2 step and 3 step:wall:.

Thanks for your input guys ,
 
Top