Can Your Lights Be Too Bright?

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Oldguyrealy

Well-Known Member
I have 700W LED on the girls I don't know what wattage I'm running.

But I turned them up just off Bloom because they started Blooming.

Well started burning so I turned it down a notch.

I have 3 Autos and 2 Photos in 4X4 Tent. My mix of soil. Using Pro Mix Fertilizer.

Game plan is to cut Northern Lights Autos then flip Girl Scout Cookies Photos.

Leave the light like it is.
 
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F_T_P!

Well-Known Member
Muy Buds said:
Yes they can I downloaded a ppfd meter on my phone not as accurate as a meter but will give you a general idea of the light your plants are receiving
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Even if it is not 100% accurate it gives you guide posts to work off of, I think LEDs are hit or miss without a way to measure the light.
 
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Delps8

Well-Known Member
Rocket Soul said:
With autos you can generally go a bit easier with light than on photoperiods.
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As far as I know, autos and photos will both grow in light levels as low as 64µmol. I've found one reference to that on the internet and it's also in the Chandra paper, where the photosynthesis curve intercepts the X axis looks to be about 64µmol ("looks to be about" - how's that for sciencing?!)

Crop yield and crop quality increase as light levels increase, up to the light saturation point, so there's no reason for the plant to not be given "lotsa light".

At the high end of the scale, I've grown photos at 1000-1050 and photos at 1100-1150. My autos were my earlier grows and I didn't have VPD dialed in as well as I did for my photo grows. All told, autos and photos are cannabis and cannabis is a light whore loves light so, if a grow is in good shape, the plant will probably be able to handle as much light as a grower is willing to give it.
 
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