My light seem turn on while my dark period..

R

RoseradeBellossom

Member
Hi, I have a temperature peak in the box during the dark period. I turn off my light at 7:00 pm and I have a temperature peak at 7:23 pm (24.7c to 25.4c for 1mn) and a drop (24.7c until morning) . With an app, I can track the temperature and humidity in my grow tent.
My first thought was that my light timer was faulty .... I tried removing it and turning off the light manually. Nothing changed. I always get this temperature spike during the dark period.

Always at the same time (about 23 minutes after I turn off the light). This may sound ridiculous, but do you think my light is slightly on ? I have a LED but it did the same with my HPS. (28.8c peak for 1 mn and a drop 24.5 until morning.)

Week 2 in flowering i hope it won't herm or something. I have this problem since 13 October. (But not 15 & 16 October, wondering why lol.)

Any idea what can cause it ?
 
Nothing to worry about with a 1c peak, if it peaked 10c then you might have a problem, strange that it peaks after you turn off the lights tho lol

Maybe it's something to do with how weather cold and warm fronts meet in the tent, I've never tested it to such a degree sorry.


That being said you have nothing to worry about other than the voodoo david blaine shit happening

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You're fine. It's most likely 1 of 2 things. Either the heat is just dissipating from the light and it's heat sinks. Or, it is the fact that your thermometer/app isn't updated in real time. I wouldn't worry about it.
 
joe_croupier said:
Nothing to worry about with a 1c peak, if it peaked 10c then you might have a problem, strange that it peaks after you turn off the lights tho lol

Maybe it's something to do with how weather cold and warm fronts meet in the tent, I've never tested it to such a degree sorry.


That being said you have nothing to worry about other than the voodoo david blaine shit happening

View attachment 5338469
Click to expand...


I mean that during my dark period for about 1 mn (or less who know ? ) my light turn on by herself it's what cause temperature spike while the night. (i think) . Now I understand why my last crop never flowered. (I was in week 6 and it looks like week 2 lol.) It made the same thing with light on period , random turn off (1-2 times in 12 hours.)
 
RoseradeBellossom said:
I mean that during my dark period for about 1 mn (or less who know ? ) my light turn on by herself it's what cause temperature spike while the night. (i think) . Now I understand why my last crop never flowered. (I was in week 6 and it looks like week 2 lol.) It made the same thing with light on period , random turn off (1-2 times in 12 hours.)
Click to expand...
Thinking, is not knowing. Look in at lights out and see what happens.
 
RoseradeBellossom said:
I've never paid too much attention tbh. When light will be off, i will look into it. If so , what do you think it is ?
Click to expand...
If the fans are turning off, there may be a change in how the warm air in the tent flows. Depending on where your thermometer is in the tent, it could cause the heat to rise, then dissipate.
 
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