How many run 24/7 lights?

FlightSchool

Active Member
i once read that plants grown under 24 hours of light would grow 33% faster then plants grown under 18 hours of light, so naturally i was all over it and switched to it right away...
ime, the plants seemed to grow a bit slower under 24 hours of light then they did when they got a dark, rest, period.. and they surely didn't grow any where near 33% faster like i had read..
i went back to 18/6 and haven't looked back..

Agreed.

I think 24 is great for the first week, But after that I always switch to 18/6.
 

zack66

Well-Known Member
Looking really healthy!
Thanks I haven't fed them yet but, mixing up a tea to get their new medium started. In 10 days or so i'll be grabbing some clones off my 2 best ladies. As you can see there is hardly any stretch running 24/7 lights. Thick and bushy just the way I like my plants.
 

Dr. Skunk Bud

Active Member
Im running 24/0 right now because my grow is in the basement and it gets down as low as 51 overnight when i switch to 12/12 i will put a heater in the tent to keep the temp stable
 

zack66

Well-Known Member
Keeping my lights on 24/7 keeps both my rooms from going below 58. Whatever works I guess.
 

ProfessorPotSnob

New Member
Different strokes for different folks .. I have used 24 hours of light when growing harvest gardens . It always seemed to cut off a few weeks of veg when needed .. Now with my perpetual grow , I would be in trouble if I used a continuous light cycle in veg .. Its not fun trimming back girls due to space limitation in the flower room :(
 

LordRalh3

Well-Known Member
Look at your electric bill, it shows you that bit, peak and off peak usage with prices. Yes it is indeed cheaper to run your lights at night simply because not as much is being used everywhere. Its by no means 30% cheaper though
 

zack66

Well-Known Member
Think about that extra 4-6 hrs of light per day. 31x4 or 31x6 = 124-186 extra hours on your electric bill. I think 18/6 or 20/4 is the way to go.
My cellar drops to 50 at night. In the past i've run my woodstove burning almost a cord of wood a month. Woods 250 a cord in my neck of the woods. Verses an extra 4-6 hours a night running my 6oo. The extra hours of light runs an average of 40 bucks a month. Verses 250 for wood. Plus the hassle of maintaining the woodstove. The math is simple for me. Plus my results running 24/7 speaks for itself. Did you see the pic of my 3.5 week old clones? I think they also speak for themselves with the tightness of all the branches.
 

zack66

Well-Known Member
Show me those clones brother! haha i wanna see!
Here they are. 3.5 weeks in. Just transplanted into final pots yesterday. They still look a little rough but, should be cranking in a few days. Haven't fed them yet either. Second pic is 6 ladies almost 6 weeks since switch to 12/12. Starting to fatten up and get frosty now. 3-4 more weeks till chop.
 

Attachments

zack66

Well-Known Member
run trial and error! do the same thing with different light cycles then check quality and quantity. I would sub fo sho.
I have done 18/6 and found growth not to be as vigorous as 24/7. I always transplant right before flower and the roots in both cases were about equal. At the end i'm going to guess and say I harvest about 15-20% more with constant light. Plants are much bushier and colas seem way denser.
 
Top