Why do my leave turn yellow when growing with LEDs

It's called deficiency from nutrients that your plants have yellow leaves, so yes it is your growing and do some reading up on it

Without more information it is hard to help you out

also could be lack of light.

Cant be cuz i grow out door too and thier doing fine, only with Leds i see this problem

Back to lack of light.

Dont think its lack of lights, im using 600 watts of LED with earth juice grow nutes

I've never used LED but yellow leaves tell me they need more nitrogen. How often are you feeding them and at what strength?

Got pic's. I would like to see what 600w of led's looks like.

My guess is that it is a 600w red/blue only LED. I had that problem before with the top leafs yellowing, it is not the same kind of yellow like Nitrogen def. My LED was VERY close to the plant. You can try fill in the missing spectrum with a 6500k CFL and see if it helps. Do let us know if it helps because I would like to know if that is the cause.