Guide me to the Light....

Rocket Soul

Rocket Soul

Well-Known Member
Id at least hit up cutter by email before you get anything, what appears as in stock on web isnt allways in stock as far as ive heard from people.
 
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DukeFluke

Well-Known Member
Oh right, I'll get on them then and see what's what

But overall, a good company to deal with? Their prices seem really good, really good though, compared to what I've been researching lately
 
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DukeFluke

Well-Known Member
Think it'd be a good all rounder?

I just want to say I don't mind Guinea pigging this. I suppose that'll be the interesting point for you lot. I could run a light with the strips you posted earlier in the thread, and make the others from other strips. Would be interesting to see how they perform against each other. I'm sure they'll all out perform their 400w hps equivalent
 
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end_of_the_tunnel

Well-Known Member
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DukeFluke

Well-Known Member
end_of_the_tunnel said:
Good efficiency, but the red is lacking.

This Cree might be one to consider for height restricted grow. The red peaks further along and looks to have nice red/far red ratio. Good price. Can double up on quantity and run low to gain back some efficiency.
https://www.cutter.com.au/product/ssk-1560zge-4090cr/

lol. Choices choices.
Click to expand...
Go to the bottom right of that page and check it out in 16 strip kit form.

That's one of my options I just linked for a kit.
 
grotbags

grotbags

Well-Known Member
if i was going to build a light today from cutter i would probably use these -SSK-1560ZGE-35-2835CR, i would get the 3000k with the added xpg3 660 and ask mark nicely if he would make me some 3000k with the 380nm uva and the 405nm blue(instead of the 4000k version they are listed as) and mix them 50/50. i think you would end up at 93+cri.
i would just order the strips from cutter to cut down on postage and custom duty(strips are light, drivers are heavy) and order the drivers from digikey or tme(free delivery more or less and no customs duty and probs the cheapest places for drivers if you in the uk).
 
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end_of_the_tunnel

Well-Known Member
The Cree datasheet shows close match between the 4000K/90CRI and 3500K/90CRI for red/far red ratio. However the blue/green ratio is much lower for the 3500K/90CRI.

If your max head space is only 4'/1.2m from floor to light, the temptation would be to try use blue leaning light to encourage compact growth. Or use half and half, with 4K leaning blend for first half of flower until growth spurt is done. Followed by finishing with a 3500K 90CRI leaning blend. Depending on who you talk to, some might suggest sticking with 3000K and just increase intensity to get a handle on vertical growth. YMMV.

Datasheet shows the 3090 nichia red peaking around 600nm. Cree datasheet shows the 35/40 90CRI, red peaking around 610/620 nm? Cutters posted graphs show them all at 600nm peak. Do not know what gives there?

Consider buying drivers local to cut down on potential shipping cost. Your idea for 3 lights seems like a good one. And provides you with flexibility, if for example only vegging, to run just one and save on electric.

Rocket souls suggestion of vesta strips is also worthy of further consideration. The Cutter Cree strips look a good price, and @diggs99 has run some but can't remember if his were 90CRI, or 80CRI with supplimentation. Another to hit up for a good starter build recommendation might be @Moflow for some clone wavey board/strip ideas.
 
diggs99

diggs99

Well-Known Member
end_of_the_tunnel said:
The Cree datasheet shows close match between the 4000K/90CRI and 3500K/90CRI for red/far red ratio. However the blue/green ratio is much lower for the 3500K/90CRI.

If your max head space is only 4'/1.2m from floor to light, the temptation would be to try use blue leaning light to encourage compact growth. Or use half and half, with 4K leaning blend for first half of flower until growth spurt is done. Followed by finishing with a 3500K 90CRI leaning blend. Depending on who you talk to, some might suggest sticking with 3000K and just increase intensity to get a handle on vertical growth. YMMV.

Datasheet shows the 3090 nichia red peaking around 600nm. Cree datasheet shows the 35/40 90CRI, red peaking around 610/620 nm? Cutters posted graphs show them all at 600nm peak. Do not know what gives there?

Consider buying drivers local to cut down on potential shipping cost. Your idea for 3 lights seems like a good one. And provides you with flexibility, if for example only vegging, to run just one and save on electric.

Rocket souls suggestion of vesta strips is also worthy of further consideration. The Cutter Cree strips look a good price, and @diggs99 has run some but can't remember if his were 90CRI, or 80CRI with supplimentation. Another to hit up for a good starter build recommendation might be @Moflow for some clone wavey board/strip ideas.
Click to expand...
Mine were built with a mix of 90cri and 80cri .

30 x 90cri strips
24 x 80 cri strips

@Randomblame suggested this combination , it’s def been a winner in my garden.
 
Moflow

Moflow

Well-Known Member
Check out the spectrum on these. Now that's wat I call a full spectrum led! Lol
~ 80 watts afore heatsinks required. I hang them about 12 inches away at 75 watts apiece

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These strips are worth a look at too as they are ideal for 1m x 1m and 4 x 4 tent diy builds

2019 Newest 3FT 301B 351H 80W Sunbar 150+5 Grow LED Strip Bar Samsung LED Grow Light for Indoor Garden - Buy 351h led bar, LED Grow light Bar, samsung led grow light for indoor garden Product on R2T Industry (HK) LTD.

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DukeFluke

Well-Known Member
Just when I thought I'd closed my last alibaba tab...

Funny enough I have just received a quote from Forest over there for a few of these.

Are they better than what I can get on digikey/cutter?
 
Airwalker16

Airwalker16

Well-Known Member
Rocket Soul said:
Of course you can run any strip soft but the more expensive it is the worse economics. The vesta is cheap but not great efficiency so it makes sense to run soft and close to the cannopy in order to make up for being somewhat older gen tech. Which seems to go well with your situation.

The real deal is in the spectrum: 5000k / 2700k and the possibility to run both at the same time over the same driver. Imagine it as a strip that could give you the functionality of a MH, a HPS and CMH using the same driver, only requiring to do the mounting work of one strip instead of 3, and youre paying just under 10$ for 20w of chips. Also it is 90 cri, which in this case means all the 3 variants have a bit of extra red and far red which is really nice for both flower and veg. And 5000k
Is a quite extreme veg spectrum for short plants, some plants like indicas cant handle it and just grows into balls of leaves. 5000k 90cri might be a bit less so due to extra red. But basicly its a bit liike having a dialastretcch function.


Also, diode count: each strip has almost 200 dioodes per 2 foot, the eb gen3 has 120 something. Also, measurements: if your bang on 2.2 its hard to fit, including the extra bit for connecting and frameing, 2 x 4foot strips; ebgen 3 are 118cm, while 2xvestas are 112cm.

There arent really any grows to see with these but we tried them and where very happy with flower, compared to 2700k and 3000k in 80 cri.
You could do a similar build with eb gen3 for a bit more cash and buying double the amount of strips of course.
Click to expand...
I thought 80cri was always the one with more red? This is off the data sheet but I don't know what to compare it to...
Screenshot_2020-05-06-15-38-38.png
 
Airwalker16

Airwalker16

Well-Known Member
Moflow said:
Check out the spectrum on these. Now that's wat I call a full spectrum led! Lol
~ 80 watts afore heatsinks required. I hang them about 12 inches away at 75 watts apiece

R2T 2019 Newest SunLike 512LEDs Full Spectrum led grow light LM561C S6 Epileds 385nm 450nm 660nm 730nm - Buy Sun led grow light, 512LEDs, LM561C S6 Product on R2T Industry (HK) LTD.

R2T 2019 Newest SunLike 512LEDs Full Spectrum led grow light LM561C S6 Epileds 385nm 450nm 660nm 730nm, find complete details about R2T 2019 Newest SunLike 512LEDs Full Spectrum led grow light LM561C S6 Epileds 385nm 450nm 660nm 730nm, Sun led grow light, 512LEDs, LM561C S6 - R2T Industry (HK) LTD.
www.r2thk.com www.r2thk.com

These strips are worth a look at too as they are ideal for 1m x 1m and 4 x 4 tent diy builds

2019 Newest 3FT 301B 351H 80W Sunbar 150+5 Grow LED Strip Bar Samsung LED Grow Light for Indoor Garden - Buy 351h led bar, LED Grow light Bar, samsung led grow light for indoor garden Product on R2T Industry (HK) LTD.

2019 Newest 3FT 301B 351H 80W Sunbar 150+5 Grow LED Strip Bar Samsung LED Grow Light for Indoor Garden, find complete details about 2019 Newest 3FT 301B 351H 80W Sunbar 150+5 Grow LED Strip Bar Samsung LED Grow Light for Indoor Garden, 351h led bar, LED Grow light Bar, samsung led grow light for...
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Click to expand...
If that's really the spectrum they put out on a single board... I'm impressed...
I just have a hard time believing it honestly...
They could use a little less Blue, but I guess that's what you'd expect where they're getting that near UVA Spike. Kind of unavoidable with those diodes.
Screenshot_2020-05-06-15-42-29.png
 
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