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[Raincheck]

Day 57 still going
(photo is overexposed, refers to a white-looking or washed-out image like this!)

Compare to Day 29

 

[Raincheck]

Hi forum,

I've noticed some deficiencies looking at the leaves, I would like to know what it could be!
I have a fair idea but would like a second opinion.

But I'm not to worried as harvest is approaching....

 

[Raincheck]

It's clearly a calcium/magnesium deficiency,

I've never encountered this before using HPS + photo's but I was warned about this with fast auto-flowers + cobs.
Although I've added some CANNA Mono calcium/magnesium during this run maybe not enough.

Here stages of events calcium/magnesium deficiency

• Upper leaf issues show spotting first
• Yellow, brown spots appear on leaf and tips
• Lower leaves curl and twist

Never the less I am going to harvest coming weekend! (10 weeks)

 

[Raincheck]

Day 80,

First one down Skunk (fimmed) not a clue about the weight (dried)!

 

[Raincheck]

@BigSm0

Are your COB drivers dimmable?
Are they CRI70 or CRI80?

Thanks Rain...

 

[HemiSync]

@BigSm0

Are your COB drivers dimmable?
Are they CRI70 or CRI80?

Thanks Rain...

Straight from his website:
Citizen clu-048-1812 cob, bjb holder, 60 watt rated heatsink, attached all in one power supply.
https://cobshop.net/shop?olsPage=products/autocob-55
As far as I know they are not dimmable but I’m sure he can let you know for sure. None of the ten I have are dimmable, I have five in each tent and if I want it dimmed I just turn some off.

 

[Qwin08]

@BigSm0

Are your COB drivers dimmable?
Are they CRI70 or CRI80?

Thanks Rain...

not easily a screwdriver an inside or just behind the heatsink
hopefully version 6 CRI90

anyone with a kill a watt meter how many amps does it draw

 

[Raincheck]

Straight from his website:
Citizen clu-048-1812 cob, bjb holder, 60 watt rated heatsink, attached all in one power supply.
https://cobshop.net/shop?olsPage=products/autocob-55
As far as I know they are not dimmable but I’m sure he can let you know for sure. None of the ten I have are dimmable, I have five in each tent and if I want it dimmed I just turn some off.

Hi Hemi,

The dimming has an other function (if the cobs can be dimmed) it could change the spectrum slightly for better or worse

 

[HemiSync]

Hi Hemi,

The dimming has an other function (if the cobs can be dimmed) it could change the spectrum slightly for better or worse

That sounds a little over my head. I’ll stick to just plugging them in. :smoking:

 

[MassMom]

Hi @Raincheck !

Beautiful grow. Your pics show a nice, tight, clean setup. Very calming. And you are a whiz at graphics. I was so tired and wanted to go to bed but couldnt stop reading your thread!


Mom