turn the lights off for 24 -36 hrs then run 12 on then 12 off cycle thats what ive done its very affective
shaimeless Reviewed by shaimeless on . 12 hours of light or 12 of hours dark, first. My 1st grow has finished vegging and is ready to switch to the 12/12 light cycle for flowering. Do I start with 12 hours of light or 12 hours of dark? Does it matter? Rating: 5