Vero18 and Vero29 Test Grow

LED technology arrived yet?

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testiclees

testiclees

Well-Known Member
PurpleBuz said:
stellas are around 93% transmission.
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thanks man. So thats about the same transmission rate as the magnetic, uncoated lenses that come with the optic. 7% seems steep unless other benefits of the lenses are important to the overall design.

EDIT : just looking around at light transmission efficiency LTE , on the web it seems like anything above 90% is viewed as quite good.
 
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JimmyIndica

JimmyIndica

Well-Known Member
testiclees said:
thanks man. So thats about the same transmission rate as the magnetic, uncoated lenses that come with the optic. 7% seems steep unless other benefits of the lenses are important to the overall design.

EDIT : just looking around at light transmission efficiency LTE , on the web it seems like anything above 90% is viewed as quite good.
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Yes 93% is very good.
The reflector that we were looking at also had a typical effiency of 93% also.
 
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testiclees

testiclees

Well-Known Member
JimmyIndica said:
Yes 93% is very good.
The reflector that we were looking at also had a typical effiency of 93% also.
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i havent really decided on the usefullness of lenses in my setup. i can see from my lux meter that the lenses do push more photons deeper into the canopy. Im just not convinced it is useful in my setup where the watts per foot is about 60 and the efficience is in the upper 40's. I keep screwing around taking them off and putting them back. Thanks for the ifo though it was interesting to read about all the advantages of the silicone lens tech.
 
JimmyIndica

JimmyIndica

Well-Known Member
testiclees said:
i havent really decided on the usefullness of lenses in my setup. i can see from my lux meter that the lenses do push more photons deeper into the canopy. Im just not convinced it is useful in my setup where the watts per foot is about 60 and the efficience is in the upper 40's. I keep screwing around taking them off and putting them back. Thanks for the ifo though it was interesting to read about all the advantages of the silicone lens tech.
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No problem. anytime.
 
Humanrob

Humanrob

Well-Known Member
JimmyIndica said:
:weed:
View attachment 3487420
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Hard to tell from just these two plants, from just this one angle, what differences might be because of the lights and which are just the characteristics of the individual plants. For instance, they way they were topped or how they reacted to being topped might play a bigger role in their current shape than the lights.

The one under the 120 seems thinner and stretchier, would you agree that seems to be the case when you look at them from various angles?
 
JimmyIndica

JimmyIndica

Well-Known Member
Humanrob said:
Hard to tell from just these two plants, from just this one angle, what differences might be because of the lights and which are just the characteristics of the individual plants. For instance, they way they were topped or how they reacted to being topped might play a bigger role in their current shape than the lights.

The one under the 120 seems thinner and stretchier, would you agree that seems to be the case when you look at them from various angles?
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They were both topped at same time the 200watt one seemed more vigorous and seemed to stay all even. The 120 wanted to grow toward the emitter more,Maybe because the 120 doesn't have the output the 200 has. The 200 IMO is a 24in x 24in flower fixture and the 120 seems to be 18in x 20in fixture.
200 is just the better fixture.
I still rec all the 200watt vero29 you need to fill an area.
 
Humanrob

Humanrob

Well-Known Member
JimmyIndica said:
They were both topped at same time the 200watt one seemed more vigorous and seemed to stay all even. The 120 wanted to grow toward the emitter more,Maybe because the 120 doesn't have the output the 200 has. The 200 IMO is a 24in x 24in flower fixture and the 120 seems to be 18in x 20in fixture.
200 is just the better fixture
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Thanks for the reply. The direct impact of more or less light/watts is often discussed. Interesting to see what this illustrates. I think final weights and density will be a decent measure.

I forget, are both of these lights the same kelvin, and which are they (3000k, 4000k...)?
 
JimmyIndica

JimmyIndica

Well-Known Member
Humanrob said:
Thanks for the reply. The direct impact of more or less light/watts is often discussed. Interesting to see what this illustrates. I think final weights and density will be a decent measure.

I forget, are both of these lights the same kelvin, and which are they (3000k, 4000k...)?
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120 is 3500 and 200 3000. Def tell shady spots from the 120. IMO its not a fair fight vero18 60 at 1.75 and the 200 vero29 90 at 2.1
 
Humanrob

Humanrob

Well-Known Member
JimmyIndica said:
120 is 3500 and 200 3000. Def tell shady spots from the 120. IMO its not a fair fight vero18 60 at 1.75 and the 200 vero29 90 at 2.1
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Definitely not a fair fight... but still a valid test for each light. The 120, I believe, is designed/expected to cover one plant competently, and that's what you have it doing. How much better the 200 can do in the same situation is useful information to anyone shopping for these lights.
 
JimmyIndica

JimmyIndica

Well-Known Member
Humanrob said:
Definitely not a fair fight... but still a valid test for each light. The 120, I believe, is designed/expected to cover one plant competently, and that's what you have it doing. How much better the 200 can do in the same situation is useful information to anyone shopping for these lights.
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There are some pros and cons to both fixtures,but the main one I believe IMO is the COB spacing needs to be extended on most of the fixtures. There is a lot of coverage to gain. 9in center is to close. That's just my opinion. Other people may think different? It does a great job though. I am sure all the gen2 fixtures will be adjusted:wink:
 
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