Quick question about kelvins

I understand ideally 6500K should be used for veg and 2700K should be used for flower. As of right now I'm just starting veg and I have 8 27w 6500K CFL's. When the time comes to flower should I replace all CFL's with 2700K ones, have a mix of both 6500k and 2700k, or can I just flower with 6500k?

You need to switch, but you can leave a couple of the 6500's in there. But you need the 2700K for best results in flowering. As I understand.

Thanks for the help. Guess its time to stock up on 2700k CFL's. Since heat isn't really an issue I'll probably do 8 2700k 27w CFL's and 2 27w 6500k cfl's total during flowering. I'm doing a total of two plants for now.

yeah what he said

How do you know what kelvins the light is?? I looked all over the box it came in and no luck...

You can usually figure it out by what it calls the light. It goes like this:

Warm White: 2700-2800K
Soft White: 3000k
Cool White: 4100K
Full Spectrum: 5000-5100k
Daylight: 6500k

If I'm wrong feel free to correct me!

Dang all mine are soft white I need some daylights

I wonder how these would work for flowering:

105 Watt Compact Fluorescent 5000K Full Spectrum CFL

$30 isn't that bad and three of these babies along with a few of my 27w ones would probably be more than enough light for two plants. (22300 total lumens)

sgr42o said:

I wonder how these would work for flowering:

105 Watt Compact Fluorescent 5000K Full Spectrum CFL

$30 isn't that bad and three of these babies along with a few of my 27w ones would probably be more than enough light for two plants. (22300 total lumens)

Click to expand...

they're really not the best spectrum for flowering though - you really want about 75-80% of your lights in the 2700k spectrum for flowering. Leave a couple of 6500k in per plant when flowering - plants seem to like a mixed spectrum when flowering.

5000k is much closer to the optimal veg spectrum than flowering so see if you can find those 105w ones in 2700k.

Ahh alright. Looks like I'll just go 2700k with a few 6500k's thrown in.

Its best to use a mix of the main Spectrums
Warm White: 2700-2800K
Soft White: 3000k
Cool White: 4100K
Full Spectrum: 5000-5100k
Daylight: 6500k
Mostly blue for vegging and mostly red for flowering.
but still use any and everything you got.

i cant seem to find any 2700k all the ones i can fins are 4100k+

i got a question will a 4100k be good for flowering because i cannot find anything lower