How do you use a lux meter for growing canabis indoors? I'm using mars hydro ts1000 and I want to make sure I'm at the correct distance from my seeds to harvest on my next grow.
Using an Android application to get a ballpark range of lighting levels that I'm aiming for during the grow. App is called (lux light meter)
I've used this for several grows, it's not perfect but it's better then guessing...
Vegetative 30,000 - 40,000 lux
Flowering 50,000 - 65,000 lux
< 15,000 lux - sparse or "stretchy" growth - plant isn't getting enough light
15,000 - 50,000 lux - good amount of light for healthy vegetative growth
45,000 - 65,000 lux - optimal amount of light for cannabis plants in the flowering stage
70,000 - 85,000 lux - a lot of light, some strains do okay at this light level.