Light Disrupt Flowering?

chooselove

Active Member
Situation: 2 tents in 1 room in a room with a window. 1 tent for veg, 1 for flowering.

About to go into a flowering schedule soon and simulatenously veg.

My concerns:
I turned off all lights in room yesterday and sat in there while veg tent light was on and all the flaps were closed.
The veg tent which is also a standard gorilla is pretty damn good at containing the light considering how bright it is when you open the flap to the tent.., though you can see tiny dots here and there.,, understandable they are tiny dots.
also, i have a power supply on the flower next to the flowering tent (titan apollo 14 that has ambient green and red light outside the tent).
i am HOPING that light, will not find its way in to the flowering tent and disrupt the flowering cycle.
my other concern is keeping the actual room of the house totally dark and preventing house and hallway light from entering the room from the space under the door. For this, I plan to place a towel or something similar to block that and be extra careful when turning on lights in the house. Some light enters through the side of the door too, but only if the bright hallway light is on.
I am planning to run the light cycle during the day (even though electricity rates cost more), because it is noticeably darker in the room during night time.
I don't have "blackout " curtains, though I have placed the tent in front of the window which covers more than 75% of the windows. Also the windows have blinders on them which are shut. Light coming in from outside during night time should not be an issue of course i can get black out curtains just in case. the main concern is keeping light out of the room from the hallway through the sides and bottom of the door, as well as veg light slightly visible from the other tent. when i say slightly visible, it is pin point dots here and there and the most being from where the zipper starts in the front. if i wanted to be extra careful i guess, i can find a black out material, hang it from the top of the door and let it down as i exit as well as drape the veg tent with extra material over it. i realize there are many threads about it, but haven't been able to find what would be considered a strong enough light to disrupt a flowering cycle. I would sit in my pitch dark tent at night to really see what goes in and out, but there is vegetation in it. I suppose I can remove a chunk of the vegetation in it for a good 10 minutes while it is super dark, place it in the room and sit in the tent for 10 minutes with lights on outside of the tent, wait until my eyes are adjusted to the darkness, and get a feel for if it is leaking or not. what i just realized the issue with that is being able to zip the tent up all the way while inside of the tent .. LOL
 

Tripping With Rocks

Well-Known Member
The ambient light from the power supply shouldn't harm anything from outside of the tent, but I'd recommend putting a piece of gorilla tape over the light, just to be safe. The light underneath the door also shouldn't be an issue, but to be on the safe side, I'd put a door sweep on the bottom of the door. That window is going to be the biggest concern. Not only will that light cause major issues, but when the lights come on inside of the tents, anyone who can see your window will know that you're growing... and legal or not, you don't want that.
 

chooselove

Active Member
The ambient light from the power supply shouldn't harm anything from outside of the tent, but I'd recommend putting a piece of gorilla tape over the light, just to be safe. The light underneath the door also shouldn't be an issue, but to be on the safe side, I'd put a door sweep on the bottom of the door. That window is going to be the biggest concern. Not only will that light cause major issues, but when the lights come on inside of the tents, anyone who can see your window will know that you're growing... and legal or not, you don't want that.
Of course. I've taken a few looks from outside and you cant see anything through the window even with the lights on so we are safe. The tent itself is doing a pretty good job blocking the window as well as the blinders that are on the windows. Also, I am probably running lights during the day so seeing anything from outside is not much of a concern. I appreciate your response.
 

chooselove

Active Member
Just buy a 30 dollar lux meter, if the light reaches your tents at less than 1 Lux, it will not affect your grow cycles at all.
Nice! Great idea, so to measure lux:

1. turn off all lights in the flowering tent
2. turn on veg tent light and hallway light
3. close the door
4. squeeze myself into the flowering tent.
5. look for any light that may be coming in.
6. hold the lux meter to that light and see what the reading is
7. depending if the lux has an illuminated screen, i may need a green light or something to read the reading
 

Jeremy Pivens

Well-Known Member
Seems like a good start, I hate unnecessary work so finding out if you even need to worry about it is an excellent start, don't fix what's not broke!
Nice! Great idea, so to measure lux:

1. turn off all lights in the flowering tent
2. turn on veg tent light and hallway light
3. close the door
4. squeeze myself into the flowering tent.
5. look for any light that may be coming in.
6. hold the lux meter to that light and see what the reading is
7. depending if the lux has an illuminated screen, i may need a green light or something to read the reading
 

chooselove

Active Member
Seems like a good start, I hate unnecessary work so finding out if you even need to worry about it is an excellent start, don't fix what's not broke!
Thanks...I agree with that philosophy. I will first go in the tent to see if anything is actually leaking through. If it is, Then I will buy the lux meter. Could be useful to own one regardless. Assuming If my eyes can’t detect any light then the plants can’t either. Interesting regardless that it takes 1 lux to disrupt the flowering cycle for a plant. Appreciate you sharing that
 

Jeremy Pivens

Well-Known Member
Glad I could be of service my friend. Good luck with your grow!
Thanks...I agree with that philosophy. I will first go in the tent to see if anything is actually leaking through. If it is, Then I will buy the lux meter. Could be useful to own one regardless. Assuming If my eyes can’t detect any light then the plants can’t either. Interesting regardless that it takes 1 lux to disrupt the flowering cycle for a plant. Appreciate you sharing that
 
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