Welcome to the cannabis growing issues and help section. Use this section to ask about issues, deficiencies and other problems you encounter while growing cannabis. To become part of our online cannabis growing community click here to register.

Optimal ppf or Lux readings in flower?

Get help fixing cannabis deficiencies and issues
Post Reply
User avatar
Tom1974
Registered User
Posts: 170
Joined: Tue Apr 19, 2022 8:42 pm
Status: Offline

Optimal ppf or Lux readings in flower?

Post by Tom1974 »

Whaasup guys just downloaded the Telos app for my 10 pro mesh lights and seen I can have full control over setting the ppf

I’m week six of flower and currently they are giving readings of 51,000 on the Lux meter but getting the old bleached head

What would you say to aim for becaus the charts I’m seeing online would be clearly too powerful still

Thanks

sir-scrogalot
Registered User
Posts: 555
Joined: Thu Oct 11, 2018 9:16 pm
Contact:
Status: Offline

Re: Optimal ppf or Lux readings in flower?

Post by sir-scrogalot »

300 - 500 ppfd in veg.
600-900 ppfd in flower

Measuring in lux is pointless
Take a look at my new blog - www.grow-life.blog

User avatar
Marcus
GR420 Leg End
Posts: 5250
Joined: Thu Nov 29, 2018 2:25 pm
Status: Offline

Re: Optimal ppf or Lux readings in flower?

Post by Marcus »

:i agree:

Lux is for humans to gauge how bright their lights are, PPFD is the amount of light that is usable by a plant for photosynthesis.



Plant's eat light.

Bats can also hear shapes.

Image

User avatar
Tom1974
Registered User
Posts: 170
Joined: Tue Apr 19, 2022 8:42 pm
Status: Offline

Re: Optimal ppf or Lux readings in flower?

Post by Tom1974 »

sir-scrogalot wrote:300 - 500 ppfd in veg.
600-900 ppfd in flower

Measuring in lux is pointless
My lights have a Bluetooth app that enable you to control output for each unit but I have no idea what numbers to put in at this stage or any for that matter (pic below) don’t want to light burn or bleach and rough distance to canopy is 60cm
Cheers

Image

User avatar
ncrypta.core
Known User
Posts: 1246
Joined: Wed Mar 24, 2021 10:42 pm
Contact:
Status: Offline

Re: Optimal ppf or Lux readings in flower?

Post by ncrypta.core »

Tom1974 wrote:
Wed Sep 07, 2022 9:16 am
sir-scrogalot wrote:300 - 500 ppfd in veg.
600-900 ppfd in flower

Measuring in lux is pointless
My lights have a Bluetooth app that enable you to control output for each unit but I have no idea what numbers to put in at this stage or any for that matter (pic below) don’t want to light burn or bleach and rough distance to canopy is 60cm
Cheers

Image
I have the telos 6 pro mesh so I get what you mean with the app 😂

Are you on android or iPhone as there been an update to the app where the grow room section open.

That but you set your tent size and what your walls are white or silver and based on that tells you base on what umol/s you set your par map for your tent 🤘🤘🤘

Android updates out the iPhone update on 14th sep

With the lux to ppfd I use a uni-t and x number by 0.017 to get rough ppfd/par and 1000 ppfd is 58,824 lux

If they bleaching just turn it down alittle or raise your light a little bit 600 ppfd is around 36k. 750 is 44K odd. And 900 is 53K

Will take pic of my spready as I’m data driven grower
Where the salts go, the water will follow

User avatar
ncrypta.core
Known User
Posts: 1246
Joined: Wed Mar 24, 2021 10:42 pm
Contact:
Status: Offline

Re: Optimal ppf or Lux readings in flower?

Post by ncrypta.core »

Image

User avatar
Hmr81
Registered User
Posts: 1242
Joined: Wed Mar 17, 2021 3:22 pm
Status: Offline

Re: Optimal ppf or Lux readings in flower?

Post by Hmr81 »

run about 35k lux in flower. i don't alter it during flower really, i just leave it to crack on.
From the Garage of HMR
No Current Grow on, Point5 has the tent and is doing her lovely thing.

User avatar
fabi420
Registered User
Posts: 1322
Joined: Mon Mar 14, 2022 11:58 am
Status: Offline

Re: Optimal ppf or Lux readings in flower?

Post by fabi420 »

sir-scrogalot wrote:
Wed Sep 07, 2022 6:35 am
300 - 500 ppfd in veg.
600-900 ppfd in flower

Measuring in lux is pointless
I join Sir Scrogalot.
It should be at least 500 ppfd in flower.
You can also go up to 1100 ppfd in flower, the plants won't be as nice anymore, but your yield will increase. However, your gram per watt yield will go down, because yield doesn't increase proportionally to performance :)
FLO & H2O !

User avatar
Tom1974
Registered User
Posts: 170
Joined: Tue Apr 19, 2022 8:42 pm
Status: Offline

Re: Optimal ppf or Lux readings in flower?

Post by Tom1974 »

fabi420 wrote:
sir-scrogalot wrote:
Wed Sep 07, 2022 6:35 am
300 - 500 ppfd in veg.
600-900 ppfd in flower

Measuring in lux is pointless
I join Sir Scrogalot.
It should be at least 500 ppfd in flower.
You can also go up to 1100 ppfd in flower, the plants won't be as nice anymore, but your yield will increase. However, your gram per watt yield will go down, because yield doesn't increase proportionally to performance :)
I wish I understood most of this post because I can tell you know your stuff and are trying to help me which is ace!

Sorry buddy I’m just such a novice

User avatar
2-Scoops
GR420 Leg End
Posts: 6052
Joined: Mon Nov 26, 2018 2:10 pm
Location: Not far away but far enough
Status: Offline

Re: Optimal ppf or Lux readings in flower?

Post by 2-Scoops »

I think he`s saying >> more light = more bud Tom in layman's terms , which is my old school train of thought, tbh i dont give a rats ass about different terms used for lighting im clueless with most of it, but im a heck of long time into growing, maybe im ignorant :running-around: but i want more stinky bud at end of shift and if that means odd bit of bleaching on a bud or two or a few fucked up looking leaves ill go with that. I`m none too bothered about a gram per watt of electric used either, its kinda a deceiving term used tbf, me wonders how many of the gram a watter types have grown 20oz+ monsters indoors. All i wanna know is how much bud I've got in my jars at end of shift and more light generally means more buddage. Not helpful for your question i know but just a pointer saying generally less light will give you less bud basically. :nice:
"You don't put fish fat oil in a Ferrari" Operation Crossbow


Post Reply

Return to “Cannabis Issues And Questions”