2700k or 6500K CFLs for Autoflowers?

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d burg

Member

• Apr 30, 2011

• #1

Someone told me that because autoflowers have little to no vegging time, you can use 2700k CFLs throughout it's entire life.

Is this correct?

 

luciferateme

Active Member

• Apr 30, 2011

• #2

you can grow any weed with 2700k straight thru, a lot of the lads dont bother with mh at all.

 

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frmrboi

Well-Known Member

• Apr 30, 2011

• #3

d burg said:

Someone told me that because autoflowers have little to no vegging time, you can use 2700k CFLs throughout it's entire life.

Is this correct?

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probably but 6500 K with with 2700 K would give you better growth. Autos have a few weeks of vegging time and you want to get them as big as possible before they start blooming.

 

djruiner

Well-Known Member

• Apr 30, 2011

• #4

i use a mix of both spectrums...gives you the best of both worlds..and its true they have almost no veg time...the few autos i grew flowered before they was 2 weeks old...most around day 11-12 from seed

 

PeacefulKid1992

Well-Known Member

• Apr 30, 2011

• #5

6500k best cuz more light more growth

 

PeacefulKid1992

Well-Known Member

• Apr 30, 2011

• #6

just saying thats what i do

 

djruiner

Well-Known Member

• Apr 30, 2011

• #7

PeacefulKid1992 said:

6500k best cuz more light more growth

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a higher kelvin rating does not mean more light...just the difference in color temp.but yes 6500k is best for growth...but wont help bud production.

 

PeacefulKid1992

Well-Known Member

• Apr 30, 2011

• #8

um ok then why do plants that grow outdoor give more buds, (more light)

 

djruiner

Well-Known Member

• Apr 30, 2011

• #9

PeacefulKid1992 said:

um ok then why do plants that grow outdoor give more buds, (more light)

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your comparing the sun to cfl's? but the reason they do is because later in the season they receive less light for shorter periods of time...which is what the different spectrums of light in indoor grows recreates.

 

D

d burg

Member

• Apr 30, 2011

• #10

So would all 2700k produce a shorter plant but with an adequate amount of buds? That's what I'm using for my Easy Ryder seedling in hopes it won't grow too massive. My grow box is not very tall...roughly 2.5 ft.

 

djruiner

Well-Known Member

• Apr 30, 2011

• #11

d burg said:

So would all 2700k produce a shorter plant but with an adequate amount of buds? That's what I'm using for my Easy Ryder seedling in hopes it won't grow too massive. My grow box is not very tall...roughly 2.5 ft.

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not really with autos...they are on their own timeline. ive tried it both ways and they tend to grow at the same rate during veg...just make sure you have more 2700k during flower. could always train them to keep them short...i just wouldn't top them...might not have time to develop new growth before flowering kicks in and that could drop your yield

 

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GaiaGuy

Member

• Apr 30, 2011

• #12

d burg said:

Someone told me that because autoflowers have little to no vegging time, you can use 2700k CFLs throughout it's entire life.

Is this correct?

Click to expand...

The vegging period is about 2-3 weeks (depending on variety), and the Daylight (6500k) prevents stretching. Without the 6500k during veg, the plant will keep stretching 'looking' for sunlight.

I grew a Lowryder 2 (see my sig for picts) using 2x Soft White (2700k) and 2x Daylight (6500k) to provide a balanced spectrum, and the results were fantastic. I added another Soft White after the first month, bringing the total to 5x 42watt CFLs.

 

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Island grown

Member

• May 31, 2015

• #13

How was it did it look nice the plant