Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old 23-04-2004, 04:07 AM
PhalGuy
 
Posts: n/a
Default A very stupid question!! maybe not so stupid....

Hello everyone!

Ok, this Saturday, I`m going to buy my new fixture for new lighting!
I have decided that I`m gonna buy 6 shop light fisture, two shoplight with 4
tubes for each shelf of my unit.
I have also decided that I`m going to use 2 40W 48 inch of Cool white and 2
40W 48 inch warm light because coll whit have more blue light and warm more
red!

Here is the question: Does it matter the order I`m going to install the
tubes!
I mean should I put : Warm, cold, warm cold
or Warm Cold cold warm
or Cold warm warm cold
or Cold warm cold warm

I told you that can be a very stupid question!

thanks

Claude



--
Claude

www.picturetrail.com/phalguy

Remove NOSPAM to reply



  #2   Report Post  
Old 23-04-2004, 04:07 AM
Matthew Donadio
 
Posts: n/a
Default A very stupid question!! maybe not so stupid....

"PhalGuy" wrote in message
s.com...
Here is the question: Does it matter the order I`m going to install the
tubes!


I have my tubes installed CW-WW-CW-WW, and I also try to shuffle the plants
around when I water for a little divertisy.

--Matt


  #3   Report Post  
Old 23-04-2004, 03:06 PM
PhalGuy
 
Posts: n/a
Default A very stupid question!! maybe not so stupid....

Thank you Matthiew!
Do you know hom many feet-candle you get with 4 tubes like that?
Does the tube generates lots of heat?

Thanks

Claude

"Matthew Donadio" wrote in message
...
| "PhalGuy" wrote in message
| s.com...
| Here is the question: Does it matter the order I`m going to install the
| tubes!
|
| I have my tubes installed CW-WW-CW-WW, and I also try to shuffle the
plants
| around when I water for a little divertisy.
|
| --Matt
|
|



  #4   Report Post  
Old 24-04-2004, 02:04 AM
fernando pena
 
Posts: n/a
Default A very stupid question!! maybe not so stupid....

Claude,

Certainly not a stupid question.

Although all sources of light produce some heat, fluorescent tubes
produce less heat than normal incandescent lamp (and that´s the main
reason why they are more efficient) However you have to take care of
where you place the ballast or "reactancia".

If you have only one shelf you dont have to worry about temperature
place everything above the plants.

Regarding the order of the tubes IMHO there is no reason to worry about.
What I think it does matter is the number of each kind of tubes that
you will combine ie 2C + 2W or 1C+3W or any other possible combination.


You could also calculate what would be the feet candle received on the
shelves but you have to consider a lot of things (lumens provided by
each tube, type of lamp, color of the walls, and of course the
distance). Also the tubes only provide their nominal lumens when their
are brand-new. Few days after that the power of the tube is not the same
as the first day although your eyes cannot perceive that. So, I would
recommend you to buy a light meter.


Hope have been of help
Regards
Fernando
Buenos Aires - Argentina


PhalGuy wrote:
Thank you Matthiew!
Do you know hom many feet-candle you get with 4 tubes like that?
Does the tube generates lots of heat?

Thanks

Claude

"Matthew Donadio" wrote in message
...
| "PhalGuy" wrote in message
| s.com...
| Here is the question: Does it matter the order I`m going to install the
| tubes!
|
| I have my tubes installed CW-WW-CW-WW, and I also try to shuffle the
plants
| around when I water for a little divertisy.
|
| --Matt
|
|



  #5   Report Post  
Old 24-04-2004, 03:02 PM
dusty
 
Posts: n/a
Default A very stupid question!! maybe not so stupid....

"PhalGuy" wrote in
s.com:

Thank you Matthiew!
Do you know hom many feet-candle you get with 4 tubes like that?
Does the tube generates lots of heat?

Thanks

Claude

"Matthew Donadio" wrote in message
...
| "PhalGuy" wrote in message
| s.com...
| Here is the question: Does it matter the order I`m going to install
| the tubes!
|
| I have my tubes installed CW-WW-CW-WW, and I also try to shuffle the
plants
| around when I water for a little divertisy.
|
| --Matt
|
|




The quesion on foot candles is difficult to answer because foot candles is
a measurment of light source and distance to the object recieving the light
1 foot candle is how much light reachs a wall from a candle one foot away.
I tried a search to find a formula to convert light output (lumins) to foot
candles but all I got was sights on Marijuana Cultivation. Very strange
indeed.


  #6   Report Post  
Old 24-04-2004, 04:03 PM
Ray
 
Posts: n/a
Default A very stupid question!! maybe not so stupid....

http://www.onlineconversion.com/illuminance.htm

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!

.. . . . . . . . . . .
"dusty" wrote in message s.com...
"PhalGuy" wrote in
s.com:

Thank you Matthiew!
Do you know hom many feet-candle you get with 4 tubes like that?
Does the tube generates lots of heat?

Thanks

Claude

"Matthew Donadio" wrote in message
...
| "PhalGuy" wrote in message
| s.com...
| Here is the question: Does it matter the order I`m going to install
| the tubes!
|
| I have my tubes installed CW-WW-CW-WW, and I also try to shuffle the
plants
| around when I water for a little divertisy.
|
| --Matt
|
|




The quesion on foot candles is difficult to answer because foot candles is
a measurment of light source and distance to the object recieving the light
1 foot candle is how much light reachs a wall from a candle one foot away.
I tried a search to find a formula to convert light output (lumins) to foot
candles but all I got was sights on Marijuana Cultivation. Very strange
indeed.



  #7   Report Post  
Old 26-04-2004, 04:08 AM
Matthew Donadio
 
Posts: n/a
Default A very stupid question!! maybe not so stupid....

"PhalGuy" wrote in message
s.com...
Do you know hom many feet-candle you get with 4 tubes like that?


Nope.

Does the tube generates lots of heat?


Some heat, but not too much. I do make sure, though, than leaves don't
touch the tubes.

--Matt




Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
MUFFLER,very,very,very LOUD [email protected] Lawns 7 21-09-2006 06:13 PM
Stupid Americans! -- Stupid... Stupid... STUPID!!! [email protected] Bonsai 3 17-02-2005 05:37 PM
Easy answer: was A very stupid question!! maybe not so stupid.... Joe C (free agent acct) Orchids 1 24-04-2004 02:04 AM
stupid, stupid, stupid... but I got 'em on sale! Kevin Orchids 10 18-07-2003 10:10 PM
Not a gardening question but maybe someone knows MFA North Carolina 14 09-07-2003 06:34 PM


All times are GMT +1. The time now is 10:07 PM.

Powered by vBulletin® Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Copyright ©2004-2021 GardenBanter.co.uk.
The comments are property of their posters.
 

About Us

"It's about Gardening"

 

Copyright © 2017