HLG Light usage

[GreenPeace22]

So, I am growing one auto in a 2 by 2 feet space, under a LED HLG 135W Rspec (3500k), which can actually pull up to 162W
at maximum driver capacity.

I want to know, (because HLG gives 0 info), which are the hanging heights and the corresponding wattage
for each stage of growth, for example : Seedling - 60inches - 100W, veg :.... and so on...

It doesn't have to be specifically for this model of light, it can be something general for LED lights of this power,
I'll adjust on the go, I want to know what works in general, with the best results for the best efficacy, without
stretching or light burn or anything damaging.

Thank you!

 

[Herb & Suds]

20inches up to 48 inches seems pretty common

 

[rkymtnman]

Buy a cheap Lux meter off Ebay.

 

[Nizza]

I am looking for a similar guide let me know if you find one please

 

[Weouthere]

I’m currently running the HLG 100v2. I read 12-24” for that one. I didn’t have it for seedling stage but I got it at about week 3-4 of veg. I had it at about 18” and the growth was insane. I just had to move it up because it was 7” above the tops and starting to burn them. Hope this helps a bit

Edit: I’m also in a 2x2 space

 

[GBAUTO]

Ultimately, learning how to grow cannabis involves actually looking at your plants and making changes based on what your plants are telling you what they need. Your plants will tell you

 

[Nizza]

Well I think someone with the right experience could write a tutorial on how to properly distance the HLG quantum 288's. I bought alot of them and if i put them too close it sucks to see what happens after sometimes

 

[PrometheanLeaf]

Every single plant phenotype has different wants for DLI and intermittent light intensity. And that can very heavily based on environmental factors and plant stage of development.

So, there really isn't a standard metric for optimization.

 

[Bengfan]

Every single plant phenotype has different wants for DLI and intermittent light intensity. And that can very heavily based on environmental factors and plant stage of development.

So, there really isn't a standard metric for optimization.

Which is my personal reason for not owning any sort of light, par, etc. measuring instrument.

 

[GreenPeace22]

20inches up to 48 inches seems pretty common

Wattage? Especially for seedlings...

 

[Herb & Suds]

Wattage? Especially for seedlings...

Not sure on that

 

[HitemwiththeHine]

So, I am growing one auto in a 2 by 2 feet space, under a LED HLG 135W Rspec (3500k), which can actually pull up to 162W
at maximum driver capacity.

I want to know, (because HLG gives 0 info), which are the hanging heights and the corresponding wattage
for each stage of growth, for example : Seedling - 60inches - 100W, veg :.... and so on...

It doesn't have to be specifically for this model of light, it can be something general for LED lights of this power,
I'll adjust on the go, I want to know what works in general, with the best results for the best efficacy, without
stretching or light burn or anything damaging.

Thank you!

Start at 24" on lowest power and watch the edges of the leaves. If they start to curl in even slightly back it off.

 

[R Burns]

I use this same light. I got it at 22" for seedlings and dimmed down. Between 14 and 16" for veg and flower, full power.

 

[GreenPeace22]

Start at 24" on lowest power and watch the edges of the leaves. If they start to curl in even slightly back it off.

On lowest power at 22? The lowest I can dimm it to is 13w I think, it's too low, let's be honest. It will stretch like hell. I want to grow weed, not corn...

 

[GreenPeace22]

I use this same light. I got it at 22" for seedlings and dimmed down. Between 14 and 16" for veg and flower, full power.

What wattage u using for seedling and early veg? Seedling is what concerns me the most. I don't want it to stretch, neither to get burnt, just enough for her to reach peak performance.

 

[HitemwiththeHine]

On lowest power at 22? The lower I can dimm it to is 13w I think, it's too low, let's be honest. It will stretch like hell. I want to grow weed, not corn...

OK the lowest my single board goes is 43w. I put that on seedlings, not vegging plants.

 

[GreenPeace22]

Well I think someone with the right experience could write a tutorial on how to properly distance the HLG quantum 288's. I bought alot of them and if i put them too close it sucks to see what happens after sometimes

That's exactly why I'm asking this, because I got my babies burnt quite a few times, and HLG says nothing about heights, which is frustrating.

 

[GreenPeace22]

OK the lowest my single board goes is 43w. I put that on seedlings, not vegging plants.

Ok, so you're saying 22 inches and 43W works for seedlings, without it stretching or burning, at least from your own experience. Cool. Thank you for your advice! Will try. What about veg and flower? how you doing? Gradually increasing wattage? Or have a fixed recipe?

 

[HitemwiththeHine]

That's exactly why I'm asking this, because I got my babies burnt quite a few times, and HLG says nothing about heights, which is frustrating.

They don't give you height but they give you a par map.

 

[HitemwiththeHine]

Ok, so you're saying 22 inches and 43W works for seedlings, without it stretching or burning, at least from your own experience. Cool. Thank you for your advice! Will try. What about veg and flower? how you doing? Gradually increasing wattage? Or have a fixed recipe?

Yes increase wattage as they age, get bigger. I don't turn up full blast until flower, usually.