Top bin COB comparison 2

[robincnn]

The old thread got closed for some reason.

Notes from old thread.
https://www.rollitup.org/t/top-bin-cob-comparison.891010/
https://www.rollitup.org/t/top-bin-cob-comparison.891010/page-2#post-12137566
https://www.rollitup.org/t/top-bin-cob-comparison.891010/page-23#post-12222144
https://www.rollitup.org/t/top-bin-cob-comparison.891010/page-26#post-12264383
Please add if i missed any chart

@SupraSPL IM me if you want to test this Luna COB and add to the charts you made for Vero 29, 3590,3070


4 samples of 3590CD, 1 sample Luna 200 3000K 80 CRI, 2 samples Vero 29 3000K, 2 samples Vero 29 3500K, 2 samples Vero 29 5000K
No spectrum correction made to data. Used a leveling stick to keep heatsink straight. 12 inches from COB to top of sensor. Apogee SQ120. Sensor vertical for all measurements.

 

[PurpleBuz]

The old thread got closed for some reason.

Notes from old thread.
https://www.rollitup.org/t/top-bin-cob-comparison.891010/
https://www.rollitup.org/t/top-bin-cob-comparison.891010/page-2#post-12137566
https://www.rollitup.org/t/top-bin-cob-comparison.891010/page-23#post-12222144
https://www.rollitup.org/t/top-bin-cob-comparison.891010/page-26#post-12264383

@SupraSPL IM me if you want to test this Luna COB and add to the charts you made for Vero 29, 3590,3070
View attachment 3596656

4 samples of 3590CD, 1 sample Luna 200, 2 samples Vero 29 3000K, 2 samples Vero 29 3500K, 2 samples Vero 29 5000K
No correction made to data. Used a leveling stick to keep heatsink straight. 12 inches from COB to top of sensor. Apogee SQ120. Sensor vertical for all measurements.

yeah the data lives !

 

[Jp.the.pope]

The old thread got closed for some reason.

Notes from old thread.
https://www.rollitup.org/t/top-bin-cob-comparison.891010/
https://www.rollitup.org/t/top-bin-cob-comparison.891010/page-2#post-12137566
https://www.rollitup.org/t/top-bin-cob-comparison.891010/page-23#post-12222144
https://www.rollitup.org/t/top-bin-cob-comparison.891010/page-26#post-12264383
Please add if i missed any chart

@SupraSPL IM me if you want to test this Luna COB and add to the charts you made for Vero 29, 3590,3070
View attachment 3596656

4 samples of 3590CD, 1 sample Luna 200, 2 samples Vero 29 3000K, 2 samples Vero 29 3500K, 2 samples Vero 29 5000K
No correction made to data. Used a leveling stick to keep heatsink straight. 12 inches from COB to top of sensor. Apogee SQ120. Sensor vertical for all measurements.

Thank you good sir!!!

 

[zangtumtum]

thank you robincnn nice work!

 

[Fastslappy]

I was hoping someone would open this subject up again ThanX robincnn

 

[Sativied]

Yeah thanks man for starting this thread, I look forward to part two. Subbed!

 

[Fastslappy]

here's change of subject back to cobs
see this on fleabay
sorry if posted before


http://www.ebay.com/itm/100W-Plant-Seed-Grow-Full-Spectrum-380-840nm-High-Power-LED-Lamp-Bulb-Chip-Light-/231671455392?_trksid=p2141725.m3641.l6368
anyone know about , try or seen these ?
guy has a spectrem as well

 

[frica]

Those are not full spectrum.
They're also epicrap and not very cheap either.

A vero 29 is only a little less than 3 dollars (digikey) more expensive than that ebay light.

 

[Fastslappy]

yeah , kinda figured that ,
wonder how many ppl buy these thinking they got something ?

 

[robincnn]

Thanks guys. No more charts until i can save money to get the new SQ500 Apogee meter

Thanks to @SupraSPL for his COB output charts.

 

[zangtumtum]

Thanks guys. No more charts until i can save money to get the new SQ500 Apogee meter

Thanks to @SupraSPL for his COB output charts.

I'm waiting the Apogee too...but times seem uncertain in UE.
the only,apparent problem, a small discrepancy, perhaps small,
on web page, claim up 4000 µmol m-2 s-1,
on the datasheet, claim up 2500 µmol s−1 m−2.
What's the truth? i send a request...without reply for now....
if I'm doing something wrong please correct me....
thank you

 

[scarecrow99]

thanks a lot Robin

 

[robincnn]

I'm waiting the Apogee too...but times seem uncertain in UE.
the only,apparent problem, a small discrepancy, perhaps small,
on web page, claim up 4000 µmol m-2 s-1,
on the datasheet, claim up 2500 µmol s−1 m−2.
What's the truth? i send a request...without reply for now....
if I'm doing something wrong please correct me....
thank you

I see on webpage
Non-linearity less than 1 % (up to 4000 µmol m-2 s-1)
And on datasheet
Non-linearity: less than 1 % (up to 2500 µmol m-2 s-1)
Might be just an error. I plan on measuring under 2000 µmol m-2 s-1.

 

[dionysus4]

the luna is that flip chip ying yang 2400w garbage i see all over the grow forums?

 

[AquariusPanta]

the luna is that flip chip ying yang 2400w garbage i see all over the grow forums?

From what I've seen, it's a lot like the Cree CXB3590 in character (no ying yang, all egg-yellow).

 

[Fastslappy]

ya need a huge sink 4 that one even @ active it's gonna be big

 

[nevergoodenuf]

The Luna heat sink is not that big. The Coolbay can provide enough cooling for 470 watts, with the CLU550, to cool passively in a room no hotter than 80*. I was given this data by CDIwebs VP of sales, verified by Mechtronix. I am only running them no more than 330 watts.

 

[SupraSPL]

Please add if i missed any chart

@SupraSPL IM me if you want to test this Luna COB and add to the charts you made for Vero 29, 3590,3070
View attachment 3596656

4 samples of 3590CD, 1 sample Luna 200 3000K 80 CRI, 2 samples Vero 29 3000K, 2 samples Vero 29 3500K, 2 samples Vero 29 5000K
No spectrum correction made to data. Used a leveling stick to keep heatsink straight. 12 inches from COB to top of sensor. Apogee SQ120. Sensor vertical for all measurements.

Great data thank you sir! How was each COB mounted? In my tests I mounted them without holder, using kapton BUT I did check the output of the Vero 29 with LEDIL C13584 holder and the holder gave it a 5-7% boost in output because it is a great shape to act as a mini reflector. I did not check the CXB3590 with ideal holder to see if there was any boost, but the ideal holder is poorly shaped as a mini reflector so that would be a good test. Also, how much are the Luna 200s retail $$?

 

[nevergoodenuf]

The Luna 300 is only $70. So less

 

[Greengenes707]

Great data thank you sir! How was each COB mounted? In my tests I mounted them without holder, using kapton BUT I did check the output of the Vero 29 with LEDIL C13584 holder and the holder gave it a 5-7% boost in output because it is a great shape to act as a mini reflector. I did not check the CXB3590 with ideal holder to see if there was any boost, but the ideal holder is poorly shaped as a mini reflector so that would be a good test. Also, how much are the Luna 200s retail $$?

View attachment 3598208

Didn't I give you bjb's and a ledil holder? You should be able to at least test the 3070 for differences in mounting tech.