COBs - DIY or buy?

[crow1]

Just with the pioneer 4 .does it have ir and uv ?

 

[Fsanti1226]

From what I have read , 3500K is best for full cycle. You can obviously adjust your chips according to your needs. All 5 of my COB's will be 3500K

Are u running more than 1 driver if so what size?

 

[Lonestar11]

Are u running more than 1 driver if so what size?

Just the one I mentioned earlier

 

[MrCanada]

If you're talking about mine, up to 3'x3'

Yeah okay perfect. I might go with that for my 3x3 veg tray. I know what you mean about sourcing everything out individually and then assembling. Just seems like a chore.

 

[Fsanti1226]

Just the one I mentioned earlier

Right on thanks homie.

 

[LedTestLab]

Meanwell HLG-240H-C1400B is the driver

So your 5 x Clu048 will run at 38-42 W each. Driver is for 240W and 1.4A and if we look on Clu048 1212C4 datasheet then Typ. Voltage is 34.6 V and mA is 1.4 ( 34.6 * 1.4 = 48,44 W)
***For example when I run Cree CXB3590 at 70 then test show me that Cree take 85W not 70W !!!

48.44 * 5 = 242.5 (you have HLG 240) that means your driver will run at max power and temperature of driver will be very high and Thermal Resistance for this Clu model is 0.34 C/W

So I do some calculation for your set up:

Total Light output:
Radiant Flux: 104.85 W
PPF: 377.37 μmol/s
PAR Watts: 76.815 W
Lumens: 30275 lm ( Lumens may be less because of the temperature)

Intensity at distance:
Radiant Flux Density: 78.997 W/m^2
PPFD: 284.31 μmol/s*m^2
PAR Irradiance: 57.872 W/m^2
Lux: 22809
Daily Light Integral (DLI) : 19.423 mol/day

Measure is made at 65 cm and area illuminated by light at the given distance: 0.77753 m^2, so keep your set up from plants at 65cm and you got really nice parameters. Somwhere I read that (DLI) 20+ mol/day is perfect for plants. But be carefull with driver because he will work hard and figure out something to cover chips, maybe in first grow there is nothing but next time some parameters will go down. And also try to measure temperature for your set up after some 3-4 hours working.

 

[Lonestar11]

On the website that I bought the light from, it says-

TECHNICAL INFORMATION:

Total Wattage Consumption (@ wall): 250
PAR watts: 120
PPF: 560



COVERAGE AREA:

30" x 30" to 36" x 36" @ 12-18" above canopy

PPFD @ 30" x 30" = 965

PPFD @ 36" x 36" = 665

Other than that, I don't really understand any of the information you presented.

 

[LedTestLab]

I make measure at 25" from plant, but any way. Can you ask for them how they calculate this parameters? Even if I make measure from 12" or 18" I can not get numbers of PPFD like them. I calculate at maximum lumens that your Clu048 can present although I doubt it that you will recive max lumens. if temperature will be lower then 45 C then ok.


Total Wattage Consumption (@ wall): 250 , ok no doubt, but 250W set up power its impossible. You have driver 240W and eve that dosnt mean that you will recive all your 240W.
Like I sayd I run Cree at 70W but test show me that actualy it takes 85W. That means that driver take some power to him self.

 

[LedTestLab]

 

[Devil]

Pretty sure I am going for a Timber Vero 29 Gen 7 with 900w of 3500k temp with 300 w deep reds for extreme flower. Both circuits with dimming and mounted in their rail system.

 

[ChefKimbo]

Even good enough to drive a 5x5 for great flower production ????

Do you mind sharing an example?

I would rather not get into naming companies because none are sponsors on this site. I would research companies using the Samsung LM561C mid power LEDs in their light fixtures. There are growers on other sites with tutorials on LED strip builds. Countless grow journals and usable data can be found with google search. I run about 180 watts of LM561C diodes and get good results. Week 7 for this girl

 

[MrCanada]

I would rather not get into naming companies because none are sponsors on this site. I would research companies using the Samsung LM561C mid power LEDs in their light fixtures. There are growers on other sites with tutorials on LED strip builds. Countless grow journals and usable data can be found with google search. I run about 180 watts of LM561C diodes and get good results. Week 7 for this girl

Are these strips small cobs? Or a completely different technology?

 

[gbauto]

The lm561c's are discrete diodes(as in a single element) while the cob's a arrays of diodes on a single chip. Don't discount disctete's- they can be very efficient.

 

[Devil]

Well pulled the plug on my Timber COB led lighting kit. 12 100w Vero 29 Gen7 chips. 9 at 3500k and another 300w of 1750k deep reds. All mounted in the new racking system. Pretty stoked to get going in my 5x5.
Huge shout out to Dan at Timber. He is awesome and very helpful. Goes the extra mile and back to help.

 

[Lonestar11]

Nice, I ended up going with the citizen 250W

 

[Devil]

Nice, I ended up going with the citizen 250W

I'm anxious to see yours set up and running.
So many choices but I do think it more of personal preference and growing styles.
Hard to go wrong with all the new tech!!!

 

[Lonestar11]

Just wanted to drop by and share by new light! Love it, worth every penny to me

 

[Fsanti1226]

Just wanted to drop by and share by new light! Love it, worth every penny to me

Man those green anodized sinks are sooo sweet!

 

[AnimaSola]

DIY is cheaper, fun to put together.... but if your not into that then there are good, ready to use out of the box, options.

I got a DIY... took some time as I was a first timer, no electrical experience to speak of, but I enjoyed it and learned a bunch.

How did you join before me and take my name?

 

[TorturedSoul]

Just wanted to drop by and share by new light! Love it, worth every penny to me

Nice. If heat becomes an issue, you can move the power supplies out of the grow area. If heat is still an issue, you can box in those heat sinks, add a fan and ducting, and move the (majority of the) heat out of the grow room without it coming into contact with the general grow room environment.