question on flouresent lights

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darklord147

Active Member

• Dec 24, 2008

• #1

i have a t5ho fixture and i have 4100k bulb i was just reading the cfl tutorial on here....https://www.rollitup.org/cfl-growing/107992-tutorial-growing-cfls.html.....and it says to stay away from the 3500k-4000k so this makes me wonder if my plants arnt getting enough light...also im curious because my baby's are one week old and tips are like purple blackish all the way around the leaf and i dont know what that means i have read it on here before but can't remember i have two different strains and both doing same thing..been watering every 4 days and i have a grow journal if u want more info well hope sumone helps me

 

Boneman

Well-Known Member

• Dec 24, 2008

• #2

Go here and see what bulbs they offer for T-5. I have never used them but I hear they are good (the bulbs)....at least the dude in my hydro shop likes them. I think the thread you are mentioning is from Doc Chronic and he's talking CFL's....well maybe he gets into T-5's. I think he added one to his other journal.....anyways, go check that link out.

 

topfuel29

Well-Known Member

• Dec 24, 2008

• #3

you need a daylight 6400K
I'd only use the 4100K with a 6400K, run them together, you'll get some supplemental
lighting with the 4100K. Theres not much Photosynthetic shit happening at 4100K.

 

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darklord147

Active Member

• Dec 24, 2008

• #4

so then i would want all daylight bulbs correct? the 6400k-6500k ones? for vegging right

 

topfuel29

Well-Known Member

• Dec 24, 2008

• #5

Yep. I think you can go down to 5200K the low end of Veg up to 6500K.
It helps to see the chart with Kelvin and photosynthesis A, and B

 

Top 44

Well-Known Member

• Dec 24, 2008

• #6

Would the 4100k be any good for flowering?

 

Hank

Well-Known Member

• Dec 24, 2008

• #7

I wouldn't even bother with the 4100k for flowering. Go with the 3000k

-Hank.

 

topfuel29

Well-Known Member

• Dec 24, 2008

• #8

Heres some Charts, and links.

Reference Link:http://images.google.com/imgres?img...ev=/images?q=kelvin+chlorphyl&um=1&hl=en&sa=G

Refernce Link:http://images.google.com/imgres?img...ev=/images?q=kelvin+chlorphyl&um=1&hl=en&sa=G

 

Top 44

Well-Known Member

• Dec 26, 2008

• #9

Nice one, thanks for the info

 

Bonafide925

Active Member

• Dec 26, 2008

• #10

can you use the ones that have one end that is a spiral? its fluorescent btw