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The NEW E-Papillon 1000W Thread
- Thread starter pHive.8
- Start date
pHive.8
Vendor
Growers are accustomed to placing one reflector over a 4'x4' canopy area. This has been the accepted norm for many years. The efficiency of ePapillon with its Open Reflector Design allows growers to place fixtures at up to 6 foot centers. This means three fixtures over two 4'x8' trays rather than the usual four fixtures. Naturally this means lower up front purchase cost and around 25% reduction in electrical consumption. Fewer lights also means less cooling is needed to manage room temperature.
DGS, I do not want to knock the E-P, they are killer fixtures. But in regards to you 1000umol recommendation, (1) 1000W E-P would not hit that mark under the 4' x 6' scenario you described above. If used every 4' x 6', the E-P would throw just under 900umol, 10% lower than what you are recommending. On the other hand, if used every 4' x 4', they would throw over 1300umol.
Ic, when you use the calculator on the epap site , for a 4x16 space with 3 fixtures you get 1007umol
Sorry for being so lazy but are these better for light penetration/lumens per sq ft?
pHive.8
Vendor
There’s 3 basic things that make fixtures efficient.
The lamp: how much PAR growlight does the lamp produce (PPF).
The reflector: what’s the percentage of that light that is reflected to the plants.
The driver: how much energy do you need to produce that reflected light.
The ePap is: (2100*0,95)/1060 = 1,88 micromol/W
Next to that there’s a study done by a university in Utah. They tested 20 different brands of fixtures. Ours came out best.
It seemed like the new thing but im second guessing myself now. Please give me the facts im askjng for man.
Theres also a 1150 watt setup. Thats what draws me in. Please explain
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Theres also a 1150 watt setup. Thats what draws me in. Please explain
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pHive.8
Vendor
Well actually I gave the facts, but I'll try to explain.
Today it's not about lux anymore but about PAR-light (micromol/m2s). This is the amount of growlight that is actually radiated by a fixture. Growlight is the light within the plant sensitivy curve of light. Lumen is what the eye sees, PAR is what the plant sees.
So efficiency actually is the amount of energy you use to create growlight.
In the case of the ePapillon it makes 1,88 micromol out of every Watt it consumes.
Does the ePapillon radiate a lot of light? Definately. Does it give the most light for every Watt you put in? Definately.
This is a 1000W system and will beat any other lighting in the business. At least that is what Utah University tested in a study on 20 different lightsystems.
The ePapillon does have a hood. It has an open hood. The light is reflected in multiple angles so light can actually penetrate deeper. Also the uniformity of the light will be better. The heat is distributed in the same way as the light. So an even light distribution, but also an even heat distribution.
Next to that there is indeed an overdrive option on the ePapillon. So getting 1150W out of the 1000W-lamp.
So I actually didn't want to steer you in a different direction.
I have to admit, I was trying to get off easy....
But please, if you have any other questions, let me know and I'll try to give you an honest answer.
Cheers!
Lumens don't really mean anything... You could produce more lumens in the green part of the light spectrum that are totally useless to the plant. These lamps, and really all you should be concerned about, produce more PAR (ppf). This is a way of saying "more lumens in the places where they count." So if you want a dry answer I think these bulbs put out the same amount of Lumens, more or less, but they offer 10-20% more PAR and less of the light that is produced is lost to inefficiency in the reflector.
DGS is on it though.
As far as the penetration goes... 1000w is a 1000w to the law of squares. These systems are in smaller, open, reflectors designed to utilize cross lighting rather than massive reflectors meant to be smashed on top of the canopy. So while they might have the same penetration they offer better light uniformity at the canopy and plant interior lighting in many situations (multiple lights). The UV-B is nice too come harvest time.
Well im sold. Thank you DGS 
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600 for the best light hood and balast. How can you beat that.
.600 for the best light hood and balast. How can you beat that.
pHive.8
Vendor
Well im sold. Thank you DGS
600 for the best light hood and balast. How can you bear that.
Good luck with the ePaps!
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plants will use any spectrum they can. if you increase what you are calling green light to a high enough level, the plants will survive on it. i was involved in cannabis specific lighting tests for a few years with a large european led manufacturer. we assumed they do not use green because we had not been really able to test prior to now. plants are survivors, period.
pHive.8
Vendor
