View Full Version : changing lights
condotoo
06-23-2010, 10:17 PM
ritht now My lights come on at 7pm and go off at 1pm. I want get them to coming on at 4am going off at 10pm . can i do this by ajusting the on off time an hour an half each day. untill i get it where i want it? or is there a better way to do this?
Dank42E
06-23-2010, 10:33 PM
you cud let it sit in darkness after 1pm till 4am, then flip the switch. darkness wont hurt the plants, too much light will freak them out.:thumbsup:
Kingpiner
06-23-2010, 11:40 PM
which is less confusing to a plant, an extended night or an extended day? does in affect the plants more during flower or veg? wouldnt a slow change be safer?
irydyum
06-23-2010, 11:46 PM
you cud let it sit in darkness after 1pm till 4am, then flip the switch. darkness wont hurt the plants, too much light will freak them out.:thumbsup:
Not exactly true. Cannabis is a photoperiod dependent plant. A dark cycle lasting 12 or more hours could trigger flowering hormones to be released. Likely it won't happen in one day, but it isn't fair to say darkness won't hurt. Cannabis is triggered by the DARK period, not by how much light, but rather how much uninterrupted darkness it gets
I would just extend the light cycle by an hour or so each day and take that time off the beginning of the cycle as you go. Some people grow on 18/6, some on 20/4, some 24/0. Myself I prefer 18/6, but the ONLY time I let the dark period get over 6 hours is to trigger flower.
irydyum
06-23-2010, 11:47 PM
which is less confusing to a plant, an extended night or an extended day? does in affect the plants more during flower or veg? wouldnt a slow change be safer?
Longer days would be less confusing because it doesn't cause any hormonal changes.
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