LED lights -- dimming vs lowering

[briefbriefs]

I completely understand the need for heat but I think you should be dehumidifying instead of humidifying. You won't be happy with your results at 67% RH. You need to get that down to the 40's, preferably low 40's by harvest. I like to be under 60% by week two.

i definitely aim to have my RH down to 40s by harvest but during veg/flower/bloom I try to follow the VPD chart. What has your experience been with the benefits of keeping your RH low during the beginning weeks of the plants life? I’m always open to new ideas

 

[Simplicio]

I completely understand the need for heat but I think you should be dehumidifying instead of humidifying. You won't be happy with your results at 67% RH. You need to get that down to the 40's, preferably low 40's by harvest. I like to be under 60% by week two.

I grow with humidity in the 60s from seed to harvest, and have never had any issues in hydro.
I've got ultrasonic humidifiers going during flower.

 

[OscarSellersp]

I don't use switches for lamps because they can cause incorrectly distributed electricity to flow into the lamp, and the bulb burns out too quickly. I used to have a manual switch that I just scrolled to dim the lights, but it was a bad experience.

 

[Need4Weed]

A couple months ago I found an android app on my phone to use to measure light, after stunting my girls during the seedling stage. Its called PPFD METER, and it has an option for lux and ppfd/dli, (not sure what the dli means). It's pretty easy to use and I think it's one of the reasons my current grow is going so well. I also found a cool magnifying app called Magnifier & Microscope that has a lot of cool features including freeze frame. It's great for looking at trichs and both apps I mentioned are free!

 

[Drownomatic]

Light falls of over distance, inverse square. That means at twice the distance you only get a quarter of the light.

I've measured various reflective tents, umbrellas, 4 in 1's, and I lose half to 2 stops of light on a bounce (Sekonic L-308x) so moving the light back you will not regain the loss of distance.

The other thing that wasn't obvoius to me is that in my setup the light also blocks in moisture in the lower part of the tent to some extent. raising the light dropped my moisture.

 

[OscarSellersp]

I don't use switches for lamps because they can cause incorrectly distributed electricity to flow into the lamp, and the bulb burns out too quickly. I used to have a manual switch that I just scrolled to dim the lights, but it was a bad experience.

Now I'm buying a smart led bulb, which I can configure via my phone. It also has auto-sensitivity and can adjust the light level itself depending on the time of day, although I don't need it indoors. I am always worried that my methods may dry out the plants, and now I use a well-tested lighting system.