Kiwi Phil
Commander
- Joined
- Jun 23, 2003
- Messages
- 2,182
I guess the name is Kevin.
I couldn't quote your message below from the other thread, so just cut and pasted it here.
Now I have some questions for you if you don't mind and it is not too much trouble.
He is your origonal post.
"Hey Kiwi, I'm not the brightest bulb in the box myself, but I am the Souteast Regional Sales Manager for the 4th largest lighting manufacturer in the world..
What I know is that of course natural sunlight is absolutley the best. With the amount of sunlight you have down under (10 hrs in winter) maybe the expense of adding HID lamps would just cut into your profits. I do not know what the KW/PH rate is for you..
If plants could "see" light, the would see each color of the light spectrum individually, Red, Blue, Green & yellow.
Each color has a different level of NW (Nano Wave) and each color has a different effect on the plants.
In order of NW levels..
Blue (350 to 500 NW) = increased chlorphyll activity, stomata movement and the plant will grow towards this source.
Green AND yellow (500 - 650NW)= Doesnt do a dang thing..
Red (600 - 700 NW) = produces chloroplast
Since obviously Blue and Red are the only colors that work, many companies (such as mine) make a dual burner lamp that has a High Pressure Sodium burner as well as a HID burner in the same bulb, that enables you to switch (via the ballast) between Blue during infancy and then Red after.
There are also flourescent lamps that can achieve spectrums close to the HID lamps, but you would need so many that it becomes more feasible to run the HID.
Again, I'm no expert, I know enough to be dangerous on this subject. But IMHO, you have plenty of natural sunlight. HID systems are often used for turning dark warehouses into greenhouses.."
Well, that opening sentence of yours certainly got my attention.
My costs for electricity are:
Peak @ $0.14050c kWh (does that mean kilowatt per hours?)
Off Peak @ $0.05730c kWh ( I understand this comes on early hr of morning at their convenience...we use it for hot water cylinder and it never goes over $30/3mths).
Your explanation is excellent.
I learnt more in the 60 sec reading it that hours spent trying to decipher 'papers' on the topic.
Thank you very much. I appreciate the time you took to explain it.
I have printed it off for future reference.
If I was to run a trial just to measure any possible benefits from lighting, then:
how many lights,
at what spacing,
only have single phase power at 240v
(have I missed any Q I should ask?)
would I need to cover a bottom table that is 9m long and 1.8m wide,
and what is the cost in your country,
when is it best to run them....at night.
do they light up the neighbourhood.
Sorry to bother you with all these questions, but it is something I should do some research on.
Thank you again.
Cheers
Phillip
I couldn't quote your message below from the other thread, so just cut and pasted it here.
Now I have some questions for you if you don't mind and it is not too much trouble.
He is your origonal post.
"Hey Kiwi, I'm not the brightest bulb in the box myself, but I am the Souteast Regional Sales Manager for the 4th largest lighting manufacturer in the world..
What I know is that of course natural sunlight is absolutley the best. With the amount of sunlight you have down under (10 hrs in winter) maybe the expense of adding HID lamps would just cut into your profits. I do not know what the KW/PH rate is for you..
If plants could "see" light, the would see each color of the light spectrum individually, Red, Blue, Green & yellow.
Each color has a different level of NW (Nano Wave) and each color has a different effect on the plants.
In order of NW levels..
Blue (350 to 500 NW) = increased chlorphyll activity, stomata movement and the plant will grow towards this source.
Green AND yellow (500 - 650NW)= Doesnt do a dang thing..
Red (600 - 700 NW) = produces chloroplast
Since obviously Blue and Red are the only colors that work, many companies (such as mine) make a dual burner lamp that has a High Pressure Sodium burner as well as a HID burner in the same bulb, that enables you to switch (via the ballast) between Blue during infancy and then Red after.
There are also flourescent lamps that can achieve spectrums close to the HID lamps, but you would need so many that it becomes more feasible to run the HID.
Again, I'm no expert, I know enough to be dangerous on this subject. But IMHO, you have plenty of natural sunlight. HID systems are often used for turning dark warehouses into greenhouses.."
Well, that opening sentence of yours certainly got my attention.
My costs for electricity are:
Peak @ $0.14050c kWh (does that mean kilowatt per hours?)
Off Peak @ $0.05730c kWh ( I understand this comes on early hr of morning at their convenience...we use it for hot water cylinder and it never goes over $30/3mths).
Your explanation is excellent.
I learnt more in the 60 sec reading it that hours spent trying to decipher 'papers' on the topic.
Thank you very much. I appreciate the time you took to explain it.
I have printed it off for future reference.
If I was to run a trial just to measure any possible benefits from lighting, then:
how many lights,
at what spacing,
only have single phase power at 240v
(have I missed any Q I should ask?)
would I need to cover a bottom table that is 9m long and 1.8m wide,
and what is the cost in your country,
when is it best to run them....at night.
do they light up the neighbourhood.
Sorry to bother you with all these questions, but it is something I should do some research on.
Thank you again.
Cheers
Phillip
