PPF, PPFD, YPF, DLI - A guide from Invisible Sun led

[Captain Beefheart]

BUT HOW FAR FROM THE CANOPY DO I NEED IT??

I did all the maths and got the colour 7.

i had a 275 touching the main cola for 3 days bach no ill affect what so ever....i`d say a safe distance is 4 inchs + i stand on that its in my diary documented see

[Captain Beefheart]

yo bach now im getting used to the LED`S i think my next grow will be all your lights i think i`ll put my HID back under the bed,now im getting some understanding with waterings / feeds which is no where near the same as HID..... ive actually found my feet i think anyway i`ll be firing up 2 x 275`s and 2 x fbars full melt....... oh btw god bless the cheese makers i think it was !

veg cab under a 75 watter full melt

Glad to hear you've found your feet with them pal.

keep an eye out bach im ready to growl ........ roar roar fukin roarrrrrr beefhearts found the sweet spot i think. my new diary will be called ( 45mm jiffy to 11 ltr pot of husk ) watch this space... i`ll be back

[2-Scoops]

You might as well be talking Chinese with all that tech talk, maybe I'm getting old and lazy, but i can`t get my head around any of that these days. Your lights are very bright though.

This info allows you to compare lights far better than by eye is all mate

we are at the point that lights are like bottled nutrients ie you can by a brand you like and have been told works (at face value and review the results) or ya can compare the specific msds of each for compounds used and truely compare similar products

It all goes over my head does this stuff mate so i don`t even bother trying to understand it, maybe I'm a bit lazy at times on that score, but it hurts my head just trying, the little bit i do understand about lighting gets me by ok. I take your point what its for and all that stuff though, tis just a brain freezer on my behalf.

[2-Scoops]

You might as well be talking Chinese with all that tech talk, maybe I'm getting old and lazy, but i can`t get my head around any of that these days. Your lights are very bright though.

This info allows you to compare lights far better than by eye is all mate

we are at the point that lights are like bottled nutrients ie you can by a brand you like and have been told works (at face value and review the results) or ya can compare the specific msds of each for compounds used and truely compare similar products

It all goes over my head does this stuff mate so i don`t even bother trying to understand it, maybe I'm a bit lazy at times on that score, but it hurts my head just trying, the little bit i do understand about lighting gets me by ok. I take your point what its for and all that stuff though, tis just a brain freezer on my behalf.

I'll see if I can condense it for you

[IMO]

yo bach now im getting used to the LED`S i think my next grow will be all your lights i think i`ll put my HID back under the bed,now im getting some understanding with waterings / feeds which is no where near the same as HID..... ive actually found my feet i think anyway i`ll be firing up 2 x 275`s and 2 x fbars full melt....... oh btw god bless the cheese makers i think it was !

veg cab under a 75 watter full melt

Liking the fire extinguisher ball Captn, care to share what you have found different about watering, feeding under Led, more feed I’d suspect?

[IMO]

@Invisible Sun
So I did the calculations based on your figures but with an auto flower light schedule ie 20hrs which comes out at 68.4 is this bad and if so what’s the solution

[Invisible Sun]

@Invisible Sun
So I did the calculations based on your figures but with an auto flower light schedule ie 20hrs which comes out at 68.4 is this bad and if so what’s the solution

If you're in full flower I'd try an knock it back to a DLI of 40_50

Ps just seen your Dm.

[IMO]

@Invisible Sun
So I did the calculations based on your figures but with an auto flower light schedule ie 20hrs which comes out at 68.4 is this bad and if so what’s the solution

If you're in full flower I'd try an knock it back to a DLI of 40_50

Ps just seen your Dm.

So you do that by turning lights down or shortening duration of lights on?

[IMO]

You can do either. Raise the light. Dim it down or shorten hours. Or combination of all 3

[ncrypta.core]

So you do that by turning lights down or shortening duration of lights on?

As your running autos, I'd turn the light dimmer down. The reason is by may maths your ppfd is around 950 and to achieve 40-50 dli you might need to drop down to 12/12, but thought if you run autos at 12/12 it would make you have a poorer harvest.

https://www.waveformlighting.com/hortic ... calculator