Store bought LED bulbs what K for veg?

X

Xanode

Member

• Mar 20, 2017

• #1

I know off the bat that one should use a more blue spectrum for veg.

But I want to give one of these Phillips store bought led globes a go, I'm not sure, with it being led, what color temp i should buy for veg?

The highest watt they have is 13w and supposedly puts out 1400 lumen and the color temp is 6500k(cool white), there are also warm white's as well.

Thanks for any help.

 

BombBudPuffa

Member

Veteran

• Mar 21, 2017

• #2

Cool white for veg.

 

Muleskinner

Active member

Veteran

• Mar 21, 2017

• #3

anything from 4000K to 6500K should be good for veg. I'm using these to veg my current seedlings:

http://www.homedepot.com/p/Philips-...utdoor-LED-Light-Bulb-2-Pack-460121/207106555

 

Koondense

Well-known member

Veteran

• Mar 21, 2017

• #4

Mix the cool and warm white bulbs in 1:1 ratio, it will be great, i promise.

 

B

brown_thumb

Active member

• Mar 21, 2017

• #5

I'm just a newb!! I'm mixing 2700K with 5000K LEDs with a few tungsten bulbs for the added far red and infrared. I bought the cheapest bulbs from my local Walmart. Other than some minor nutrient burn my seedlings are doing well. However, I move my plants outside for nine hours of direct sunlight then move them inside for seven hours of artificial light.

 

X

Xanode

Member

• Mar 23, 2017

• #6

Muleskinner said:

anything from 4000K to 6500K should be good for veg. I'm using these to veg my current seedlings:

http://www.homedepot.com/p/Philips-...utdoor-LED-Light-Bulb-2-Pack-460121/207106555

Click to expand...

Those things look awesome, the whole floodlight/wide beam deal looks intriguing

 

Muleskinner

Active member

Veteran

• Mar 24, 2017

• #7

the floodlights are super bright and the light penetrates well, I'm still not convinced the spectrum is right. I'm doing a comparison with a horticultural LED vs. the spotlights right now to see what happens.

 

Muleskinner

Active member

Veteran

• Mar 25, 2017

• #8

Not getting good results with the 5000K Philips bulbs, I just moved the seedlings under my Hortiled and they took off. I'm thinking not enough red in the Philips bulbs maybe? Will have to try 2700K.

 

Koondense

Well-known member

Veteran

• Mar 25, 2017

• #9

Maybe.
It felt like my two clones prefer the 3000K to the 6400K led. Or maybe it's just my poor observation.
I think cct over 4000K has too much blue in the mix.

 

Muleskinner

Active member

Veteran

• Mar 27, 2017

• #10

Koondense said:

Maybe.
It felt like my two clones prefer the 3000K to the 6400K led. Or maybe it's just my poor observation.
I think cct over 4000K has too much blue in the mix.

Click to expand...

I agree - most horticultural LED have 3-4 times as much red as blue. I think you need to get down into 2700K-3000K to get that kind of ratio.

 

B

brown_thumb

Active member

• Mar 27, 2017

• #11

I've been mixing 2700K with 5000K but I move my small plants into direct sunlight for 9 hours and into artificial light for another 7 hours... but I'm just a newb. I'm still trying to figure this out!!