...All Things Vero...

Would you consider buying a VERO after reading through some of the posts?

  • Total voters
    357
Greengenes707

Greengenes707

Well-Known Member
hyroot said:
the higher the cri the more even the spectral output and better the performance. I've seen first hand. My inda gros put out 800 µmoles and has 95 cri and out performed leds putting out 1100 µmoles at 80 cri. Imo cri trumps over par. If both are high like CMH then that's even better l
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AquariusPanta said:
Wait, what? Your second and third sentences contradict one another.

Are you referring to HPS when you mention counterparts or 70, 80 CRI LEDs?
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No they don't. Relative to itself the 90 cri seems really nice. Put it into absolute power(non-normalized), and the 80cri has just as much deep red, but more blue, normal red, and yellow. So proportionally it's different. But the absolute amount of deep red is damn identical, then count in what you're losing.

I have posted the graph a million times already and will post again when I get home. The spectral gains are nothing compared to the output loss.
And please show me where it actually shows deep red is more photosynthetically active that orange/red?


EDIT:
Here is the graph showing what you gain and what you lose...
VERO High CRI loss.jpg
 
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SupraSPL

SupraSPL

Well-Known Member
(GG beat me to it) Alesh is saying that even if high 90+ CRi LEDs have high percentages of deep red, 80CRi LEDS have the same or more actual deep red output, because of their greater overall output in all wavelengths. That is especially true if you are sourcing top bin 80 CRi because top bin 90+CRi are rare.
 
SupraSPL

SupraSPL

Well-Known Member
I have a Vero18 3000K 97CRi for photography. During a test I grabbed it accidentally and I thought my lux meter was broke. The numbers were significantly lower than a generic COB and it took me a minute to figure out what had gone wrong. When I use it for photography I crank it @ 2-3A because efficiency is not a concern in that case. For those times you want high CRI, Vero18 is a great value Ill give it that.

Vero13 4000K 90CRi in the laundry room/workshop. Big improvement over fluoro for workspaces although 80 CRi works great too.

The ladies appreciate high CRi in the bathroom for doing makeup. Incandescent is probably the best for that short job, although they are being phased out by law now right?
 
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AquariusPanta

AquariusPanta

Well-Known Member
Now I unserstand what you were pointing out, Alesh. The way you worded your claim threw me for a loop but the graph definitely helps explain the matter.

Who else is jacked to try out the new Vero 2.0?!?
 
C

churchhaze

Well-Known Member
In 20 years, people will be complaining about the 80cri streetlamps not rendering colors as well as their indoor decor eggs.

When I was your age, everything was amber at night, including the sky. We had to walk to our cars, in the low cri light, both ways..
 
nvhak49

nvhak49

Well-Known Member
Do you guys think I can passive cool 2 vero 18s on a 3.5"x12" heat sink, thinking about running them at 700mA for vegging, or should I run them lower or higher for efficiency? What driver could run them both, one driver for the two vero 18s?
 
alesh

alesh

Well-Known Member
AquariusPanta said:
Now I unserstand what you were pointing out, Alesh. The way you worded your claim threw me for a loop but the graph definitely helps explain the matter.

Who else is jacked to try out the new Vero 2.0?!?
Click to expand...
Sorry about that, English is not my first language, obviously. You might try to improve it by correcting my mistakes.

@churchhaze I completely understand. 97CRI Vero decor is the best non-incandescent light I've ever seen.
 
AquariusPanta

AquariusPanta

Well-Known Member
churchhaze said:
In 20 years, people will be complaining about the 80cri streetlamps not rendering colors as well as their indoor decor eggs.

When I was your age, everything was amber at night, including the sky. We had to walk to our cars, in the low cri light, both ways..
Click to expand...

@alesh

You could have fooled me. Now if you typed like Salmonetin, then I would have guessed that English wasn't your first language lol.

And I'm no English teacher by any stretch.
 
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churchhaze

Well-Known Member
No, I don't think you could them passively on a 3.5"x12" heat sink.

First of all, if you wanted to go passive, you'd be better off with the 12" profile at 5 inches, which might get Tc with 2 vero18 at 700mA to about 50C. I'm not sure if i'd call that passive or semi-passive.

nvhak49 said:
Do you guys think I can passive cool 2 vero 18s on a 3.5"x12" heat sink, thinking about running them at 700mA for vegging, or should I run them lower or higher for efficiency? What driver could run them both, one driver for the two vero 18s?
Click to expand...
 
nvhak49

nvhak49

Well-Known Member
churchhaze said:
No, I don't think you could them passively on a 3.5"x12" heat sink.

First of all, if you wanted to go passive, you'd be better off with the 12" profile at 5 inches, which might get Tc with 2 vero18 at 700mA to about 50C. I'm not sure if i'd call that passive or semi-passive.
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Would 500mA be enough for them for vegging to get the temps down or even 350mA? What drivers would you prefer for the vero 18s for vegging? I guess if it comes down to it I could put a small cpu fan on them to help keep the heat sink cool enough.
 
nvhak49

nvhak49

Well-Known Member
churchhaze said:
I haven't considered what driver I would use for only 2 in series, especially at 500mA. Maybe this one?

http://www.meanwell.com/search/APC-35/default.htm

APC-35-500 would work, but is only 84% efficient. I guess some people are okay with that... lol. It fits the specifications other than the mediocre efficiency. Longer series chains (higher total voltage) would allow for 91-94% drivers (HLG-C)
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I have yet to make a cob set up but I've been ordering the stuff for them so I'm still new to all of this but have been reading up a lot on them. Those drivers would be one driver to one cob right or am I wrong haha. Sorry for the all the stupid questions.
 
hyroot

hyroot

Well-Known Member
Greengenes707 said:
No they don't. Relative to itself the 90 cri seems really nice. Put it into absolute power(non-normalized), and the 80cri has just as much deep red, but more blue, normal red, and yellow. So proportionally it's different. But the absolute amount of deep red is damn identical, then count in what you're losing.

I have posted the graph a million times already and will post again when I get home. The spectral gains are nothing compared to the output loss.
And please show me where it actually shows deep red is more photosynthetically active that orange/red?


EDIT:
Here is the graph showing what you gain and what you lose...
View attachment 3357716
Click to expand...

isn't the gain between 500nm - 610nm on the 80 cri unusable light anyway.
 
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