DIY led for 50x50x100 (~1,5x1,5x3ft)

andymex said:

I had not considered that, are they cri 90 ?

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It would explain a lot.
@Rocket Soul , your ears always to the ground on new tech. You know much?
I know nothing.

coreywebster said:

It would explain a lot.
@Rocket Soul , your ears always to the ground on new tech. You know much?
I know nothing.

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Samsjng horticulture linear leds are indeed expensive :/

I found Bridgelux EB gen 3 on digikey, would take 12 of them but they don't have warehouse inside EU and I would have to pay extra tax (~36% of total price). That way it would be better for me to go with invisiblesun QB, BUT I've read some bad reviews about them, using fake samaung leds and very bad communication.

Viscera said:

Samsjng horticulture linear leds are indeed expensive :/

I found Bridgelux EB gen 3 on digikey, would take 12 of them but they don't have warehouse inside EU and I would have to pay extra tax (~36% of total price). That way it would be better for me to go with invisiblesun QB, BUT I've read some bad reviews about them, using fake samaung leds and very bad communication.

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I would still get the white samsung strips over the bridgelux strips.

coreywebster said:

It would explain a lot.
@Rocket Soul , your ears always to the ground on new tech. You know much?
I know nothing.

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Are we talking about samsungs horti strips? Yes on expensive, yes on reds not being as good as cree or osram, no/yes on 90 cri: 80 cri diodes but maybe 90cri with the extra red monos. Im a proponent of 90 cri whites, undecided on 80cri + red, at least not very inclined.
Efficiency: i think they are quite ok, iirc? 2.8 or something? Remember most people quoting numbers without tests are fudging, at least samsungs can be trusted. But i dont like 5000k base white. It ccould be great for a green house but maybe not that great for canna flower.
Should be easy to grow with though.

Rocket Soul said:

Are we talking about samsungs horti strips? Yes on expensive, yes on reds not being as good as cree or osram, no/yes on 90 cri: 80 cri diodes but maybe 90cri with the extra red monos. Im a proponent of 90 cri whites, undecided on 80cri + red, at least not very inclined.
Efficiency: i think they are quite ok, iirc? 2.8 or something? Remember most people quoting numbers without tests are fudging, at least samsungs can be trusted. But i dont like 5000k base white. It ccould be great for a green house but maybe not that great for canna flower.
Should be easy to grow with though.

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Thanks man, actually I asked because a friend was decided on buying them but the 5000k and the price was not ideal in my opinion. In the end he bought them but digikey cancelled the order. I know my friend and he will buy them soon. For the time being he borrowed from me a nice set of 8 qb 132. Im doing a new build with 80% of 4000k, 15% of xp-g3 660nm deep and 5% uva.

Rocket Soul said:

Are we talking about samsungs horti strips? Yes on expensive, yes on reds not being as good as cree or osram, no/yes on 90 cri: 80 cri diodes but maybe 90cri with the extra red monos. Im a proponent of 90 cri whites, undecided on 80cri + red, at least not very inclined.
Efficiency: i think they are quite ok, iirc? 2.8 or something? Remember most people quoting numbers without tests are fudging, at least samsungs can be trusted. But i dont like 5000k base white. It ccould be great for a green house but maybe not that great for canna flower.
Should be easy to grow with though.

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Why you don't like cri 80 + red ? Do you think cri 90 is better because the extra far red can work in tandem with the red ?

andymex said:

Why you don't like cri 80 + red ? Do you think cri 90 is better because the extra far red can work in tandem with the red ?

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andymex said:

Thanks man, actually I asked because a friend was decided on buying them but the 5000k and the price was not ideal in my opinion. In the end he bought them but digikey cancelled the order. I know my friend and he will buy them soon. For the time being he borrowed from me a nice set of 8 qb 132. Im doing a new build with 80% of 4000k, 15% of xp-g3 660nm deep and 5% uva.

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Did i talk to you or someone on your build before? I recognize this the specs and parts.

Weve done some basic tests on our own where 2700k 90cri beat 3000k 80cri even though there was atleast 15% more photons per watt in the 80cri lights. @Rahz made some sbs tests again 90cri won, but they were slightly flawed by having too much vegg: 90cri took over a lot of cannopy.
Or_gro did a 3 way sbs where 90cri looked bestt, over red supped 80 cri lights at similar spectrum and same intensity. I dont say i got all the answer just that this is where i put my $ cause it looked the best to me, thru forums and in our grow.
Another couple off things to bear in miind:
- Red diodes have worse thermals than blues (and consequently whites which are based on blues)

- to me it seems like diode count really matters, having 800ppfd from 600diodes seems to give differnt resultts than 800 ppfd from 4000 diodes. The more spread out and numerous the light sources are the bettter, at least thats my take.

So i prefer to have the maximum red baked into my base spectrum, and then add blue/uv if need be. Just my take, your design seems sound. I just prefer tto start with a flower spectrum and then add extras to get to vegg, instead of the other way around.

Viscera said:

Samsjng horticulture linear leds are indeed expensive :/

I found Bridgelux EB gen 3 on digikey, would take 12 of them but they don't have warehouse inside EU and I would have to pay extra tax (~36% of total price). That way it would be better for me to go with invisiblesun QB, BUT I've read some bad reviews about them, using fake samaung leds and very bad communication.

Click to expand...

Fake, bad communication? Do you have links to reviews?

Viscera said:

Samsjng horticulture linear leds are indeed expensive :/

I found Bridgelux EB gen 3 on digikey, would take 12 of them but they don't have warehouse inside EU and I would have to pay extra tax (~36% of total price). That way it would be better for me to go with invisiblesun QB, BUT I've read some bad reviews about them, using fake samaung leds and very bad communication.

Click to expand...

Pretty much all of the global and even the inside eu suppliers of chips and drivers lists prices without tax. Here in spain i get hit with 21% tax on entry of anything from digikey. You can try your local blux distribution, youll find them on blux website. Mine are slightly cheaper than digi, but i still have to pay tax, no way around it. You would be paying the tax anyways even if the warehouse was in EU region, only youd have it paid directly thru to the seller, not added onto the bill and paying the shipping agent. Death and taxes... Never change...

Rocket Soul said:

Did i talk to you or someone on your build before? I recognize this the specs and parts.

Weve done some basic tests on our own where 2700k 90cri beat 3000k 80cri even though there was atleast 15% more photons per watt in the 80cri lights. @Rahz made some sbs tests again 90cri won, but they were slightly flawed by having too much vegg: 90cri took over a lot of cannopy.
Or_gro did a 3 way sbs where 90cri looked bestt, over red supped 80 cri lights at similar spectrum and same intensity. I dont say i got all the answer just that this is where i put my $ cause it looked the best to me, thru forums and in our grow.
Another couple off things to bear in miind:
- Red diodes have worse thermals than blues (and consequently whites which are based on blues)

- to me it seems like diode count really matters, having 800ppfd from 600diodes seems to give differnt resultts than 800 ppfd from 4000 diodes. The more spread out and numerous the light sources are the bettter, at least thats my take.

So i prefer to have the maximum red baked into my base spectrum, and then add blue/uv if need be. Just my take, your design seems sound. I just prefer tto start with a flower spectrum and then add extras to get to vegg, instead of the other way around.

Click to expand...

I have 3000k qb 132, I bought the 4000k because it was all I could get through amazon and it seemed to be good idea because I could try to match the spectrum of for example the hlg 650r. I understand your point and if the build does not perform well I can change to 3000k again. I will also add 15 watts of far red, I plan to run the all day long along the uva and then keep them 5 minutes on after lights off for night time initiation. So in total I will be 650 watts qb 132 4000k in 12 boards, 120 watts 660nm in 40 diodes 40 watts uva in 20 and and 15 watts far red with 20 diodes. Do you think it will work ok in a 5x5 tent ?

Rocket Soul said:

Did i talk to you or someone on your build before? I recognize this the specs and parts.

Weve done some basic tests on our own where 2700k 90cri beat 3000k 80cri even though there was atleast 15% more photons per watt in the 80cri lights. @Rahz made some sbs tests again 90cri won, but they were slightly flawed by having too much vegg: 90cri took over a lot of cannopy.
Or_gro did a 3 way sbs where 90cri looked bestt, over red supped 80 cri lights at similar spectrum and same intensity. I dont say i got all the answer just that this is where i put my $ cause it looked the best to me, thru forums and in our grow.
Another couple off things to bear in miind:
- Red diodes have worse thermals than blues (and consequently whites which are based on blues)

- to me it seems like diode count really matters, having 800ppfd from 600diodes seems to give differnt resultts than 800 ppfd from 4000 diodes. The more spread out and numerous the light sources are the bettter, at least thats my take.

So i prefer to have the maximum red baked into my base spectrum, and then add blue/uv if need be. Just my take, your design seems sound. I just prefer tto start with a flower spectrum and then add extras to get to vegg, instead of the other way around.

Click to expand...

I added a profile picture but I met you in a thread where I suggested to a guy a build with 16 qb 132 for a 5x5 tent.
Muchas gracias !!!!

andymex said:

I have 3000k qb 132, I bought the 4000k because it was all I could get through amazon and it seemed to be good idea because I could try to match the spectrum of for example the hlg 650r. I understand your point and if the build does not perform well I can change to 3000k again. I will also add 15 watts of far red, I plan to run the all day long along the uva and then keep them 5 minutes on after lights off for night time initiation. So in total I will be 650 watts qb 132 4000k in 12 boards, 120 watts 660nm in 40 diodes 40 watts uva in 20 and and 15 watts far red with 20 diodes. Do you think it will work ok in a 5x5 tent ?

Click to expand...

I think youll be golden as long as you can make the build work practicly in your space. Big spread out builds can get tricky if you dont think it thru. But really most of the fine points we discuss here does not matter as much as grower skill and getting climate just right. Base white, 660, 730 and uva all at your first build? Thats very good, better than i went, but have to large areas for lowish cost, not just the one perfect space. My advicce is to nott throw in everything at the same time, learn what each thing does. Give some uva in vegg already and add in reds, especially far red if you get plants that wont stretch out at all.

andymex said:

I added a profile picture but I met you in a thread where I suggested to a guy a build with 16 qb 132 for a 5x5 tent.
Muchas gracias !!!!

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Des res, company! Mejico?

Another way to treat this is by using 4000k in the centre an 3000k in the sides (usually more stretch in the centre...)

andymex said:

I have 3000k qb 132, I bought the 4000k because it was all I could get through amazon and it seemed to be good idea because I could try to match the spectrum of for example the hlg 650r. I understand your point and if the build does not perform well I can change to 3000k again. I will also add 15 watts of far red, I plan to run the all day long along the uva and then keep them 5 minutes on after lights off for night time initiation. So in total I will be 650 watts qb 132 4000k in 12 boards, 120 watts 660nm in 40 diodes 40 watts uva in 20 and and 15 watts far red with 20 diodes. Do you think it will work ok in a 5x5 tent ?

Click to expand...

M

Rocket Soul said:

I think youll be golden as long as you can make the build work practicly in your space. Big spread out builds can get tricky if you dont think it thru. But really most of the fine points we discuss here does not matter as much as grower skill and getting climate just right. Base white, 660, 730 and uva all at your first build? Thats very good, better than i went, but have to large areas for lowish cost, not just the one perfect space. My advicce is to nott throw in everything at the same time, learn what each thing does. Give some uva in vegg already and add in reds, especially far red if you get plants that wont stretch out at all.

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Mi segundo build !
I changed the first after 2 grows lol !!!

end_of_the_tunnel said:

Fake, bad communication? Do you have links to reviews?

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Had a look on Trustpilot. If we discount angry welshman still not good. Only three reviews there.

Edit. Further search shows the vendor posts on AFN. I would be tentative with anything i read on a certain uk forum. Some fellows there seem a bit parochial.

Boatguy said:

You could just buy a hlg65 as a turnkey/non diy for under 100.
If you went the cob route, I had good luck with smaller cxb1512's in my micro grow. 5 spread out on a single heatsink would make for a cheap build

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I have 36” from floor to top of my grow box, would that hlg65 be too powerful for me?

Boatguy said:

I have never used strips. How hard can you run those without heatsinks?

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How would you mount them? Just hang them by wires?
If you put them on anything, it'll help distribute heat...
I'd feel comfortable running them 1/3 honestly