my lights are full spectrum led growlights that light the canopy up so bright it looks yellow... I have been having issues with stretching but honestly man at this point its not something I have to freak ab, it was shlumped during the day but I trained it to stand up straight again, it's growing nicely
edit... no actual yellow coloration on the plant itself, signs of bud already, the lights are just warm low enough heat to where the plant is ok, I mist it daily to make up for a slight lack of moisture in the air