90-100k lux but no stress?

Does it still hurt/stagnate my plants if lux is 90-100k and they show no sign of stress? Temp and rh is in order. Lights are 21-22" above plant canopy.

Saw a intensity chart for different stages so I'm well aware this is quite alot of lux.

They have been growing with that intensity for a week now since switch, but used high intensity in veg as well.

Also wondering how accurate lux meter app is on my P30 Pro, when measuring leds that got IR and UV?

Quick Guide – Lux Levels for Optimal Cannabis Growth. < 15,000 lux – sparse or “stretchy” growth – plant isn’t getting enough light. 15,000 – 50,000 lux – a good amount of light for healthy vegetative growth. 45,000 – 70,000 lux – the optimal amount of light for cannabis plants in the flowering (budding) stage.

go go kid said:

Quick Guide – Lux Levels for Optimal Cannabis Growth. < 15,000 lux – sparse or “stretchy” growth – plant isn’t getting enough light. 15,000 – 50,000 lux – a good amount of light for healthy vegetative growth. 45,000 – 70,000 lux – the optimal amount of light for cannabis plants in the flowering (budding) stage.

Click to expand...

This is what I've come across before. Just not sure how this applies to led, and if ir and uv changes things up when trying to get a read? Is it possible my plants get stunted, without showing leaf stress? Like just growing slower or something? I'm not saying it's happening just curious if it's possible.

As I understand it, you can use a LUX meter with full spectrum (white) LEDs, but not other types (like the blurple ones, for example). Your light doesn't look quite as 'white' as mine (Mars Hydro TS3000), so it's possible your LEDs don't react well with a LUX meter. If that is the case, a PAR meter would be required for accurate readings.

That said, always trust the plant to tell the truth.

Verrice said:

As I understand it, you can use a LUX meter with full spectrum (white) LEDs, but not other types (like the blurple ones, for example). Your light doesn't look quite as 'white' as mine (Mars Hydro TS3000), so it's possible your LEDs don't react well with a LUX meter. If that is the case, a PAR meter would be required for accurate readings.

That said, always trust the plant to tell the truth.

Click to expand...

That's what I'm doing right now, feeling them out watching for symptoms.

It is 3.5k quantum boards with Ir and uv switch.
Do you think the uv/it make the read higher?

Destroyer of chairs said:

Do you think the uv/it make the read higher?

Click to expand...

Sorry, I don't know for sure, but with 90-100k readings and no signs of heat stress/light burn, I would assume, Yes.