Hi everyone! First of all sorry for my poor english..
I need some advice.. I have a grow room 60x60x160 cm and I used until last monday with a 200 w cfl, now I have a ufo led 147 w (I know..it's not the best but my budget is limited these days...)
what would be the best distance from the top?
I have 4 on the grow room and they're ak47 af..they have 2 months on these days and are very late..they are grown with the cfl.. maybe because the cold..or because the cfl was almost at the end of her life..last year was better...
and what would be the best distance next time when I will start with led? I heard about 60 cm, is that correct?
Sorry, but is my first experiment with led and I have to learn a few things..
Assuming that the LED is rated in actual draw you still need more light if you're growing/flowering cannabis in a 2x2x5 area and you'd want to flower while they're small.
Cold can affect growth, you want to be in the 78-80F range.
Without knowing about your lights I can only guess that 12" above the canopy would be a better starting point based on the size/shape of the light.
Good luck!
SME
Disclaimer: I still use HID and I'm NOT an LED expert. All of my LED knowledge is from other parties or research so I can't say from first hand experience one way or another. I also run a medical grow consulting business in SoCal.
3w diodes are weak and don't penetrate much and 147w "LED watts" will be even less when measuring "actual draw watts". You're likely under 90w actual draw which means it will only cover an even smaller area.
55F is too cold, you may have to add heat for a while.
Good luck...
Disclaimer: I still use HID and I'm NOT an LED expert. All of my LED knowledge is from other parties or research so I can't say from first hand experience one way or another. I also run a medical grow consulting business in SoCal.