DIY CXB3590 light

[TheEEngineer]

As the title states I took on a little project and made myself a CXB3590 based light to go over my 1m2 grow. I realize my canopy looks quite terrible however that is the reason I made a new light, for even light spread over my grow area.

So to the specifics:
cob : 9x 72v cxb3590 3500k CD bin
Driver: 2x HLG-240H-C700B

Cobs are run at 700mA giving 50W of lights each for a total of 450 Watts.

They are arranged so that there is about 1.1ft from center to center of the cobs.
So here are the pictures of the finished product and where it is hanging.

 

[Alchemist420]

Nice DIY! I like the simplicity of the design.
Can you post links to the hardware and prices you paid

Sent from my SM-N915V using 420 Magazine Mobile App

 

[Curly Beaver]

Very clean setup!

+reps

 

[TheEEngineer]

So I can give rough prices.
Cobs: $44/each
HLG-240H-C700B : $65/each
1" wide 1/8" thick aluminum angle : ~$1.50/ft
Wire and other devices necessary I am not sure, I had it around prior to starting the project.

And here is a quick update of how they are doing at day 31 flowering.

 

[JuanCarlos]

Any feedback versus your old lighting?

 

[TheEEngineer]

Honestly, with the new light is absolutely no problems with heat. For 31 days into flowering I am quite happy with how they look and smell.
Once I harvest I will have a much better idea as to how well this has performed but first guess is it will blow away the diode based LED it had replaced.

 

[JuanCarlos]

I read people claiming increased bud density due to multiple point sources of light, interested to see if you agree with that. What light were you running before?

 

[TheEEngineer]

I was running a MarsII 1200, the light did okay just not the performer I had hoped or thought it would be.

 

[Alchemist420]

Looking good over there
Can't wait for the final harvest to see how those ladies turn out under your new DIY COBs

 

[TheEEngineer]

So here is an update at day 43. They are frosting up nice, they are currently all cloudy with a few turning amber here and there.

 

[kelticBlue]

Hi
What did ya use to cut the aluminum with, would a dremmel work?
gotta do this before to long...

 

[TheEEngineer]

A dremel would work with the correct blade (though I remember them being more of a grinding wheel than an actual blade) or attachment. I used a bandsaw which is overkill, you could actually use a hacksaw if you wanted to, just make sure to file down the edges.

 

[TheEEngineer]

As a final update to this, the grow is finished, off of a 3x3 scrog running the lights at 400w draw I have 1.5lbs dried of white widow. I would say this exceeded my expectations from this light.
Some details about my grow:
6x White Widow clones from a mother plant of mine in 3Gal smart pots with coco using a modified lucas formula on a drip system that ran 3x a day for 1 min. Flowering was done in 62 days.

I will post pictures of some of the harvest here in the next few days. If anyone wants to know more specifics please feel free to ask!

 

[TorturedSoul]

3x3 scrog running the lights at 400w draw I have 1.5lbs dried of white widow.

Nice! How long did the clones grow before you induced flowering?

 

[TheEEngineer]

I vegged them for 4 weeks prior to starting flower, I did take quite a few more cuts than I needed and choose the most vigorous 6 so I did set myself up for a fairly quick veg. During veg I also did the liquid light/saturator foliar combo which seems to speed up growth a slight bit.

 

[veinz]

 

[sleepless]

I vegged them for 4 weeks prior to starting flower, I did take quite a few more cuts than I needed and choose the most vigorous 6 so I did set myself up for a fairly quick veg. During veg I also did the liquid light/saturator foliar combo which seems to speed up growth a slight bit.

Great build.
Was 44 per cob price including heat sinks?

Was excited to find this as I watched Growmau5 3x3 video and wanted to avoid hot spot in middle.

Think I will use 2 old mars 300 to build this.

Anything you would recommend changing?

 

[Tomula]

This is epic man, congratz and I know what I want!

 

[Dr Fish]

Page one of this thread has a complete price list.. Anyone wanna follow a cree cxb 3590 42 cob superpanel build?

 

[Wendy Zhang]

As the title states I took on a little project and made myself a CXB3590 based light to go over my 1m2 grow. I realize my canopy looks quite terrible however that is the reason I made a new light, for even light spread over my grow area.

So to the specifics:
cob : 9x 72v cxb3590 3500k CD bin
Driver: 2x HLG-240H-C700B

Cobs are run at 700mA giving 50W of lights each for a total of 450 Watts.

They are arranged so that there is about 1.1ft from center to center of the cobs.
So here are the pictures of the finished product and where it is hanging.

Hi,your grow room seems awesome.