i dont know what it will do to the plant alot depends on strain
but i think its a good idea to keep ventilation goin 24/7
and to shut of the light, the timer should have a on/off switch so you wouldnt have to unplug

hope everything turns out ok:jointsmile:
texas grass Reviewed by texas grass on . is it disaster?? well i've had a mishap with my first indoor cabinet scrog the timer for the ventilation and the timer for the light got messed up a bit...stoopid mistake heres the story so my baby is on it 3rd goin on 4th week of 12/12 i decided to try to take a decent pic with my phone camera and the 250w hps blinded it, so i figured id unplug it, take the pic, and plug it back it. i proceeded to do so and thought nothing of it till the next day i went into the spare room where my cabinet was and i heard Rating: 5