6500 v. 2700

Bynk

Well-Known Member
It seems that the common agreement here is that 2700K is better for the flowering stage than 6500K. I've searched for the technical reasons, but all I could find was anecdotal reasoning:
-the sun's seasonal change to a lower angle in the sky gives less light
-ergo a lower band of light is better

I'm not sure the logical connection is there. Everything I've learned says more bright light equals bigger, stronger plants and less light duration causes flowering. I don't see why you would want to mimic the inefficiencies of the sun's path.

Can anyone direct me to some non anecdotal information for the benefits of using 2700K?

Thanks
 

Bynk

Well-Known Member
Really??

No one?

This seems to be the most common assumption on this group and no one has any evidence for it........

Thanks
 

MalteseGrower

Well-Known Member
The red spectrum is what is most needed for flowering. The Kelving rating is just a number name given to the light rather than a colour for the name. It is no less a light but a different type. It's like taking vitamin e instead of vitamin c because it is a higher letter. It's nothing but a name and will do no good when trying to stop yourself catching the flu.
 

cbtbudz

Well-Known Member
why not use both 6500k and 2700k?the sun doesnt just spit out 2700k.get multispectrums.might even try uvb bulb.
 

smellzlikeskunkyum

Well-Known Member
i use 5000k for veg and 2700k for flower. i like to add a tiny bit of blue in flower too, it does make a difference. i throw in a couple 4ft t12 one 6500k one 5000k. just that lil bit helps resin alot, and bulk too im sure.
 
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