Anyone grow with only high Kelvin LEDs? (6500K+, etc) - If so, what's your experience?

RenaissanceBrah

Active Member
I know 3000-4000K is the scientific proven standard, but just wanted to ask if anyone here has grown purely using higher Kelvin LED's (5000K+) and if so - what's your experience doing so?

Did it turn out just fine?
What differenced did you see between a higher Kelvin LED and a lower Kelvin one?

(Why I ask:)

I was going to buy two 240W lights for my 3x5' grow - I'll be growing equatorial landrace sativas (exclusively).

I heard anecdotal evidence (I know, not scientific, but info from old school heads) that for landrace sativas higher Kelvin lights lead to better effects (I'm growing for pure effect, I don't mind low yield, no bag appeal, etc). The reason being that near the equator, where these sativas grow, there is naturally a higher Kelvin light spectrum.

Was going to get two 6500K Kingbrite 240W LEDs for that reason, but just doing my due diligence.
 

OSBuds

Well-Known Member
As you know, light is the major environmental variable used to drive photosynthesis in plants. However, if temperature, humidity, CO2, nutrient, or media-moisture levels are outside the optimum range for the plant species you are growing, photosynthesis will be limited. There is a principle of limiting factors that has to be considered when cultivating plants. Understanding how each factor will influence plant growth and development, along with the relationship between each variable, will help you make optimal decisions regarding your environmental conditions.
 

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I know 3000-4000K is the scientific proven standard, but just wanted to ask if anyone here has grown purely using higher Kelvin LED's (5000K+) and if so - what's your experience doing so?

Did it turn out just fine?
What differenced did you see between a higher Kelvin LED and a lower Kelvin one?

(Why I ask:)

I was going to buy two 240W lights for my 3x5' grow - I'll be growing equatorial landrace sativas (exclusively).

I heard anecdotal evidence (I know, not scientific, but info from old school heads) that for landrace sativas higher Kelvin lights lead to better effects (I'm growing for pure effect, I don't mind low yield, no bag appeal, etc). The reason being that near the equator, where these sativas grow, there is naturally a higher Kelvin light spectrum.

Was going to get two 6500K Kingbrite 240W LEDs for that reason, but just doing my due diligence.
I am in late flower now with 4 sour diesel 4 Durban in a 5'6" ceiling,I can tell you they love my led and its 3000k& 5000k,but also I heard higher Kelvin helped limit heighth too so I switched to a 7200k 400mh in week 2 of veg and they loved it,but I veggies 5 and a half weeks and fim'd and topped twice and covered with a scrog to keep off lights and you will need a new pre-filter and patience.
 
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