9 plants under 2x air cooled 600w hps and one normal 600w hps in a 1.5x1.5 tent
- Thread starter ceeconst
- Start date
If you really want the definitive answer then get a light meter.
Do you know how 'Inverse Square Law' works ?
I have a budbox xxl 2.4 meter by 1.2 and I have 2 air cooled supernova's within a foot of the canopy. The Aircooled supernova's are made to hit a 1-1.2 meter square area. This means that it fits perfectly an I get good light coverage all round. I normally pack my tent wall to wall until the air flow starts to suffer (even then I tend to trim lower branches and leaves to increase airflow).
You will find dependent on what reflector you use you will receive much more light around the center (thats why I paid for the supernova's).
I rotate and move my plants around to encourage even growth. Moving larger plants around the edges and smaller ones to the centre to receive more light.
I am debating putting a third 600 watter in there but I feel it may be unnecessary.
Hope thats helpful.
Mouse
Do you know how 'Inverse Square Law' works ?
I have a budbox xxl 2.4 meter by 1.2 and I have 2 air cooled supernova's within a foot of the canopy. The Aircooled supernova's are made to hit a 1-1.2 meter square area. This means that it fits perfectly an I get good light coverage all round. I normally pack my tent wall to wall until the air flow starts to suffer (even then I tend to trim lower branches and leaves to increase airflow).
You will find dependent on what reflector you use you will receive much more light around the center (thats why I paid for the supernova's).
I rotate and move my plants around to encourage even growth. Moving larger plants around the edges and smaller ones to the centre to receive more light.
I am debating putting a third 600 watter in there but I feel it may be unnecessary.
Hope thats helpful.
Mouse
Basically the amount of light produced drop significantly when you move away from the bulb.
While the bulb may give out 96000 lumens at the bulb. If you move away from the bulb by 12 inches you are only getting a quarter of the light that you got next to the bulb.
Now when you move 2-3 feet away from the bulb the amount of light you get drops to 1/16th of what you get at the bulb.
What this boils down to is if you drop your light to within a foot of the plants you get 4 times as much light than you would get at a foot away.
If your lights are 3 feet away you would gain 16 times as much light by moving the light to within a foot.
The downside of this is the spread, dependent on what type of reflector you have you may find that the reflector does not cover enough area when you drop the bulb as low as 1 foot from the plants. That means you will have a hot spot in the middle with weak light around the sides.
I use air cooled supernova reflectors they have air ducts like the ones you can get for carbon filters and extractor fans. I keep the intake and the outtake outside the tent making it a closed system that takes almost all the heat away from the tent keeping it cool. The reflectors which cover 1.2 meters very well at a distance of between 2-16 inches give me an excellent spread and a great light intensity.
Dependent on what lights you use, what reflectors you use and if they are air cooled you can get your lights as close as possible and still get a good spread.
I am sorry if this raises a lot of questions but I hope it is helpful.
Mouse
While the bulb may give out 96000 lumens at the bulb. If you move away from the bulb by 12 inches you are only getting a quarter of the light that you got next to the bulb.
Now when you move 2-3 feet away from the bulb the amount of light you get drops to 1/16th of what you get at the bulb.
What this boils down to is if you drop your light to within a foot of the plants you get 4 times as much light than you would get at a foot away.
If your lights are 3 feet away you would gain 16 times as much light by moving the light to within a foot.
The downside of this is the spread, dependent on what type of reflector you have you may find that the reflector does not cover enough area when you drop the bulb as low as 1 foot from the plants. That means you will have a hot spot in the middle with weak light around the sides.
I use air cooled supernova reflectors they have air ducts like the ones you can get for carbon filters and extractor fans. I keep the intake and the outtake outside the tent making it a closed system that takes almost all the heat away from the tent keeping it cool. The reflectors which cover 1.2 meters very well at a distance of between 2-16 inches give me an excellent spread and a great light intensity.
Dependent on what lights you use, what reflectors you use and if they are air cooled you can get your lights as close as possible and still get a good spread.
I am sorry if this raises a lot of questions but I hope it is helpful.
Mouse