Design suggestions for 10KW bloom room

The_Enthusiast

The_Enthusiast

Active Member
Greetings, I am new to this forum but not to this business. For the first time I'm trying to build a room/place according to my needs/capacity (light, ac etc), because it’s a hassle to make every aspect optimal if you don't build it from scratch.
I used AAW (med+600W EM bulbs) before and I can say that I was never happy with light uniformity under one, I used a wide of bench designs and never had <10% uniformity (used it with and without „SUPER SHADER“) – to be honest it was sometimes <70%... in 0.8m x 1.4m…


That said I see that there are a few breakthroughs in last couple years, as 1000W DE lamps became more efficient than 600W lamps.


I'm leaning to Gavita all in one fixtures 1000W DE – the price is reasonable but 2100 uMol / 1055W of operating consumption is awesome (new Philips Led Toplight have 2.2 – 2.4 uMol/operating W – but are about 2-2.5x more expensive in the start).


There will be 4 “hydro systems” in different bloom phase.


Now the question:
Should I go again with reflector on bed design or better as Gavita is saying – lighting up the entire room?
What would be the best design for 10 x 1000W lights? What about the pathways?
I would like to achieve most g/W spent but uniformity is important to.

T_E
 
ruwtz

ruwtz

Well-Known Member
do you have the ceiling height for Gavitas? they recommend 10ft with 2ft+ clearance above the fixture, and so thats what I built my space to.

they run hot but nothing that a properly sized AC can't handle.
 
The_Enthusiast

The_Enthusiast

Active Member
I'm planing to build it myself but it will be probably underground and reinforced concrete. For first idea I'm thinking 2.6m (8.5 ft?) ceiling. The thing is now i am using 600W EM HPS with medium AAW and beds are about 1.4m x 0.8m (4.6ft x 2.6ft) - but light distribution is bad with or without SUPER SHADER and on wide or narrow configuration
 
ruwtz

ruwtz

Well-Known Member
The_Enthusiast said:
I'm planing to build it myself but it will be probably underground and reinforced concrete. For first idea I'm thinking 2.6m (8.5 ft?) ceiling. The thing is now i am using 600W EM HPS with medium AAW and beds are about 1.4m x 0.8m (4.6ft x 2.6ft) - but light distribution is bad with or without SUPER SHADER and on wide or narrow configuration
Click to expand...
Sounds like you have the resources and wherewithal to do this properly, so why not push those ceilings out to 10ft and give yourself the option?

I have similar sized tables under Gavita lamps and the crossover of light footprints is spectacular: plants grow really dense into that space between the lights and would be one giant canopy if left unchecked. This is where the Gavitas really come into their own. And other DE's, I expect. Excellent coverage and penetration.
 
The_Enthusiast

The_Enthusiast

Active Member
To follow up:
So I would like to build a room around Gavita lights and 1000W ones to be exact. I checked Gavitas documents they state that its best to build a room 5.5m x 3.6m with ceiling at 2.6m (light @ 2.5m about).

With 10 x 1000W lamps you get about average (with everything in 10% in same distance):
850 uMol @ 0.9m from floor
900 uMol @ 1.2m from floor
960 uMol @ 1.5m from floor

Is this two much light/would I be able to get around 1g/W? (as of now i never got more than 0.9g/"W" of 600W EM)

The systems would be 4.5m x 0.75m so about 3.375 m2 for every system and about 88 plants on the bed.
Are yields of 400-600g/m2 possible with this much light and good genetics/nutrients/etc?

Systems would be on rails so there would be a passage of 0.6m and it would be "movable" so everything is kinda available.

I figured, in my experience that best things would be to take most advanced things from greenhouse business and apply it here.

But the main question i have, how does this room lighting behave in GPW scenario - i don't have experience in that and i cant test it myself at the moment.
 
The_Enthusiast

The_Enthusiast

Active Member
Okay, I will try one more time - if someone with some experience with "multi-light on multi-bed" setups.
Here are 2 ideas (i have some LED ones but they are just headache expensive...)

v1 Gavitas 8x 1000W All in one system 1 light per plant so total 8 lights in a 9m x 5m room

v2 Gavitas 10x1000W All in one system in 10 lights in a room 5.5m x 3.6m
v2-1 is light placement
v2-2 is light @ 0.9m and 1.5m from the floor

EDIT: typo
 

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The_Enthusiast

The_Enthusiast

Active Member
OK, I'll BUMP it for the last time, after this - I'll leave it to go to oblivion...

I asked this question on few forums only at this one someone replied (not useful reply but reply non the less)
 
qballizhere

qballizhere

Well-Known Member
The_Enthusiast said:
Greetings, I am new to this forum but not to this business. For the first time I'm trying to build a room/place according to my needs/capacity (light, ac etc), because it’s a hassle to make every aspect optimal if you don't build it from scratch.
I used AAW (med+600W EM bulbs) before and I can say that I was never happy with light uniformity under one, I used a wide of bench designs and never had <10% uniformity (used it with and without „SUPER SHADER“) – to be honest it was sometimes <70%... in 0.8m x 1.4m…


That said I see that there are a few breakthroughs in last couple years, as 1000W DE lamps became more efficient than 600W lamps.


I'm leaning to Gavita all in one fixtures 1000W DE – the price is reasonable but 2100 uMol / 1055W of operating consumption is awesome (new Philips Led Toplight have 2.2 – 2.4 uMol/operating W – but are about 2-2.5x more expensive in the start).


There will be 4 “hydro systems” in different bloom phase.


Now the question:
Should I go again with reflector on bed design or better as Gavita is saying – lighting up the entire room?
What would be the best design for 10 x 1000W lights? What about the pathways?
I would like to achieve most g/W spent but uniformity is important to.

T_E
Click to expand...
I have tried the gavita de's open hoods air cooled t5 in the last 5 years and with the gavida you will need the 10 foot ceilings and plan on 6k btu per light. They put out some heat. Currently I am switching to cob leds. With 4.86 uMol 80 cri per watt with a total of less than 470 watts at the wall. You can build a cob led that will beat gavida hands down for $400 each light and you dont need as much ac for the heat they dont put off as much you need to think about a heater for the winter not running an ac.
As far as lighting the whole room I dont I only light the area Im growing in so the main concentration of light is over the canopy. I run 4 3'x8' scroggs and like to have isles between them so i can check on them ect
 
The_Enthusiast

The_Enthusiast

Active Member
qballizhere said:
I have tried the gavita de's open hoods air cooled t5 in the last 5 years and with the gavida you will need the 10 foot ceilings and plan on 6k btu per light. They put out some heat. Currently I am switching to cob leds. With 4.86 uMol 80 cri per watt with a total of less than 470 watts at the wall. You can build a cob led that will beat gavida hands down for $400 each light and you dont need as much ac for the heat they dont put off as much you need to think about a heater for the winter not running an ac.
As far as lighting the whole room I don't I only light the area I'm growing in so the main concentration of light is over the canopy. I run 4 3'x8' scroggs and like to have isles between them so i can check on them ect
Click to expand...
It's easier to uniformly light a growing bed with LED i agree with that. It's cheaper to "buy" 20 vs 30kw of peak POWER from electrical company, it's easier to implement 10 kw vs 15 kw cooling system. But I'm searching for the bottom line.
Investion wise mostly (at the moment) it's easier to go cheaper start route than cheaper electrical route.
Where I live, there isn't any online shops only ebay with 2-8weeks shipping time and our customs check every package that is over 20 USD and apply import tax and VAT on price + shipping cost (about 1.35x price), and shipping cost is usually 2-4x more expensive than to USA.

So your suggestion is to switch from HID to COB LED and have it over bed only.

How much PPFD without CO2 enrichment (but with about 340 ppm CO2) is beneficial?
 
qballizhere

qballizhere

Well-Known Member
The_Enthusiast said:
It's easier to uniformly light a growing bed with LED i agree with that. It's cheaper to "buy" 20 vs 30kw of peak POWER from electrical company, it's easier to implement 10 kw vs 15 kw cooling system. But I'm searching for the bottom line.
Investion wise mostly (at the moment) it's easier to go cheaper start route than cheaper electrical route.
Where I live, there isn't any online shops only ebay with 2-8weeks shipping time and our customs check every package that is over 20 USD and apply import tax and VAT on price + shipping cost (about 1.35x price), and shipping cost is usually 2-4x more expensive than to USA.

So your suggestion is to switch from HID to COB LED and have it over bed only.

How much PPFD without CO2 enrichment (but with about 340 ppm CO2) is beneficial?
Click to expand...
Without co2 I would go for 800 ppfd
you can add co2 later it will only help and you wouldn't use 340 ppm it would be more like 900-1500 ppm 300-400 is is the air you breath so you want to raise it higher

Its not only easier to implement it is cheaper to buy also. I run open hps hoods now and converting it to cobs. Almost finished with the first half of the room. For me just to turn on the lights I need 80A of power and with cobs I will need 40A. The savings in ac needed and no more buying bulbs every year. It may cost a little more upfront but i'm looking at the bottom line over time.
 
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