Mono's Perpetual Soil

b.real said:
pretty much. don't do it lol

graytail, as of feit electrics website, all their 23 watt cfls are rated at the same lumens (1600) no matter the color temp. I still don't think this is right. I'm gonna check other websites.

I'm gonna send some emails out and try and find out the color temp a cfl burns at without any coating or modifications.
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Let me know what you uncover.

How often do you change your cfls b.real?
 
Went through this morning and watered the auto flowering plants that were dry enough. Two others will get watered tomorrow. All of them seem to be beginning to pre-flower now so once they have dried out I will switch over and begin fertilising with flowering nutrients and a bit of p/k 13/14.

Gave the pineapple chunks their first veg feeding this morning, I also fim'd the strongest one. They now have roots protruding from the bottom of the pot so they will be transplanted into their next containers in around a week. I will begin low stress training once they have been transplanted as it's a total pain to transplant a tied down plant lol.

White Widow x Skunk #1 and Sage n Sour seem to be off to a slightly slow start, they are now a week old and showing no real signs of doing much. Hope they are doing all the hard work under ground and getting that root system sorted out.
 
b.real said:
pretty much. don't do it lol

graytail, as of feit electrics website, all their 23 watt cfls are rated at the same lumens (1600) no matter the color temp. I still don't think this is right. I'm gonna check other websites.

I'm gonna send some emails out and try and find out the color temp a cfl burns at without any coating or modifications.
Click to expand...

Mine range from 1450 to 1700 lumens, all 23 watters. Oddly enough, it's the yellow ones that have the higher lumens. I just checked - I'm running 5000Ks @ 1600 lumens and 2700Ks @ 1700 lumens.
 
Graytail said:
Mine range from 1450 to 1700 lumens, all 23 watters. Oddly enough, it's the yellow ones that have the higher lumens. I just checked - I'm running 5000Ks @ 1600 lumens and 2700Ks @ 1700 lumens.
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I guess we see the brightness of lights differently dependent on the spectrum.

Have you any idea how often cfl's should be replaced? Say while being ran 18/6...
 
Much of what I learned about CFLs, I learned from Tulip's old thread:

CFL Light Tutorial

Good stuff! :thumb:
 
Graytail said:
Mine range from 1450 to 1700 lumens, all 23 watters. Oddly enough, it's the yellow ones that have the higher lumens. I just checked - I'm running 5000Ks @ 1600 lumens and 2700Ks @ 1700 lumens.
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according to this company, their 3500k bulbs are brighter than their 27000k bulbs.

1650 lumens @ 23 watts
017801997392.jpg


1600 lumens @ 23 watts
017801997323.jpg


MONO, idk how often I should be changing them. I've beeng using one set since the start!
 
b.real said:
according to this company, their 3500k bulbs are brighter than their 27000k bulbs.

1650 lumens @ 23 watts
017801997392.jpg


1600 lumens @ 23 watts
017801997323.jpg


MONO, idk how often I should be changing them. I've beeng using one set since the start!
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Are 2700k bulbs not a better spectrum for flowering though? Or would 3000k work just as well?


Same here, not changed my bulbs in around 18 months lol
 
not sure! I keep finding contradicting information. I look at another companies bulbs and their 2700k had more lumens than their 6400k bulbs -_-

I doubt the plant really cares. they just want it bright, period.
 
Mono said:
Are 2700k bulbs not a better spectrum for flowering though? Or would 3000k work just as well?


Same here, not changed my bulbs in around 18 months lol
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From my research itz 6400 for veg and 2700 for flower. I have 2 2700s for flowering but i might get em runnin anyway. More light the better right? :)
 
The k is for the spectrum not the lumens. The lights have a paint, if you will, inside them that dictates what color of the spectrum (k) shows through. And the "k" is light we cant see on the either of the far ends of the spectrum (infrared and ultra violet). Green is the neutral light (right in the middle) Thats why you can go in your room at lights out with a green light and it not have any effect on your plants.
Hope that helps :)
 
dirtysteve said:
The k is for the spectrum not the lumens. The lights have a paint, if you will, inside them that dictates what color of the spectrum (k) shows through.
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exactly! and that paint MUST kill some brightness. i'm trying to figure out what color a cfl burns at with no paint/coating?
 
I have no idea! Lol
What i know is that the chemical reaction that creates light in a cfl needs that coating on the inside to make it fluoresce. Without that coating youd have neon lights which produce almost no heat and arent part of the true spectrum of lights, visible or not.
 
dirtysteve said:
I think as long as youre growing something green theyll used any part of the spectrum lol. I too, may be wrong! Except for the green part...thats true! :)
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I think from looking at a couple of charts you are right. The plant uses pretty much all of the spectrum, except green light. Which is why, like you said steve, green light is used to garden at lights out. Just that the spectrum of 6400k is the most appropriate for veg and 2700k is the most appropriate for flowering.
 
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