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Cycloptics Greenbeams 315w owners thread

timmur

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I currently run 6 of the 942 mogul 315s from Advance tech in cheap horizontal open reflectors over 3 plants for my personal grow and couldn't be happier!

We are gearing up to build a small legal commercial grow and will be using around 30 of the greenbeams in a modeled room.

Hey biggreg, swing by my thread in the signature. I'm using 16 GB's in a modeled room. You should post up your room when you start putting it together. The thread of mine is a little boring right now as I was waiting for a contractor to finish up the electrical and HVAC, but I shit canned him and have another guy lined up to come over and finish it up. Should get interesting soon.
 

Ez Rider

Active member
Veteran
This is great, but I was wondering if anyone had it for the Greenbeams. I had Flip (I think his name is?) do some modeling for a 8 x 8 back when I was growing a lot more and I've seen these kinds of tests:

https://www.cycloptics.com/sites/default/files/Duke_retrofit.pdf

Was hoping to see the same for a 3 x 3 or 4 x 4 with one fixture assuming no reflectivity...
"Assuming no reflectivity", I believe the #'s will be VERY low. The Greenbeam DEPENDS on "reflectivity" to work. The luminaire's wide dispersion pattern, coupled with "reflectivity" is what makes the Greenbeam so effective. I did ask Flip about a single 3100k in a 3'x3' tent WITH reflective walls. He said the #'s would be close to my current modeled set up(with reflective walls). So, ~964ppfd @ 20" below aperture, ~831ppfd @ 30" below aperture, ~708ppfd @ 48" below aperture, and ~605ppfd @ 66" below aperture. This is based on a model, not real world measurements. Hope it helps.

So looking at Cycloptics computer model, i can order up an almost 3d uniform 800 ppf of light in my grow space. That is so radically different than what im used to indoors but very similar to outdoor growing where the bottom buds get the same light as the top. A diffuse even field of photons. The plants bathe in this multi directional light hardly "seeing" the bulb due to minimum hot spots. I'm pretty impressed and im wondering how should we design the canopy to take advantage of the lights? Vertical? why stay flat?

The Greenbeams aren't going to provide "3d uniform ppfd's" of any sort. It's a uniform PLANE of illumination. See above how the ppfd's drop as you get further from the aperture. The truly uniform plane is a huge improvement over most systems, but as you can see, the ppfd's drop of by around 33% in 46". Hardly "3d". Not looking to argue here, just clarify.

I currently run 6 of the 942 mogul 315s from Advance tech in cheap horizontal open reflectors over 3 plants for my personal grow and couldn't be happier!

We are gearing up to build a small legal commercial grow and will be using around 30 of the greenbeams in a modeled room.
Those 3 plants must be BIG.


Hey biggreg, swing by my thread in the signature. I'm using 16 GB's in a modeled room. You should post up your room when you start putting it together. The thread of mine is a little boring right now as I was waiting for a contractor to finish up the electrical and HVAC, but I shit canned him and have another guy lined up to come over and finish it up. Should get interesting soon.

I feel your pain and look forward to your success. I am intrigued by your room-in-a-room.
 

Ez Rider

Active member
Veteran
I may be jumping the gun a little, but I decided to get my veg tent up and running. I had a few trays of well rooted clones, but the roots were starting to get tangled because they've been in the trays for over 2 months...my rebuild took a little longer than I expected. Anyway's I needed to separate the cuts while I still could. I transplanted the 1" cubes into 3"x3"x4" rockwool blocks. I've got a C/G with a 3100k lamp in a 3'x3' tent. At the moment, the hood is ~40" above the plants, which is as high as it goes. Usually it takes my SourBubble 2 weeks just to start growing after I transplant rooted clones. In addition to my usual v+b RO formula, I'm using 2ml/gal vitamin-hormone booster and 2.5ml/gal cal/mg. I'm hoping the vitamin-hormone boost and cal/mg, coupled with the cmh will help speed up a notoriously slow vegger. I'm mid week 3 for flower now, and I'd normally move my transplanted cuts to a 432w t-5 at the beginning of week 4. Like I said, i may be jumping the gun a little, but I'd rather be a little ahead than a little behind. We'll see how it goes.

This is how the cuts looked coming out of the domes...
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Thick, healthy white roots:biggrin:

The tent is running 8-12F above ambient room temps. I've got a 4" vortex fan pulling air into the tent, and 1 of the 10" ports opened at the top for exhausting the hot air. I've also got a small desk fan in the tray with the plants for circulation. I'll may get a 4200K for the veg, because it would give me more effective headroom. Here's the veg tent up and running...
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I didn't think to get a flower pic before lights out, but I'll get 1 up before the weekend.
 

Ez Rider

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Veteran
Day 28 and looking good. The plants have topped out at mostly 24" tall. This is about a foot shorter than I was hoping for, and I'm sure that will affect final yield. There's still a lot of free space in there. The plants just didn't stretch much at all after the flip. Next run, I'll be vegging up to ~24" before flipping. I'll also be investing more time in "training" the plants. The C/G's have reduced the stretch by 50% compared to what I'd expect to see with 1000w hps's. I'm confident that the yield will dramatically increase once the plants are large enough to really pack my space. This run, most of the plants only developed 2-3 main branches because I didn't do any training. Next time I'll go for 4-5. I figured it would take 2-3 runs to get the plant size/density figured out. I'm really hoping I can swing an Apogee meter before next run, so I can get exact ppfd's to help me figure things out. So, here's how the flower tent is looking @28 days...






My cuts have been under a C/G for 5 days, and are just starting to show some new growth. Too early to say how it compares to the t-5 setup it replaced, but if nothing else, the 315 uses 25% less electricity. Still considering ordering a 4200K for my 3'x3' as I don't think the extra "power" of the 3100K is really needed here.
 
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timmur

Well-known member
Veteran
Wow sounds like the stretch was significantly reduced. That is good news to me as I'm really counting on that with the sativas I'm going to run. I'm not going to rely on just the spectrum to do the trick though; I'll use the morning dip (cold air dump) and some mechanical stress to keep them short.

Once you get your new system figured out you'll be pulling some great numbers. Really looking good in there! :biggrin:
 

Ez Rider

Active member
Veteran
Day 36 of flower, so I figured I'd check in. Things are mostly looking good. I say mostly, because everything looks/grows so different under the cmh vs hps, that's it's hard to compare. The flowers are growing nicely, and are already rock hard. I have to say, this is the healthiest my plants have looked in a long time. I've cut the feed to 0.7EC, and I'll hold there till day 42. The last 2 weeks will be plain RO water. Still not sure about the yield, but overall structure/appearance is top notch. I'm really looking forward to this batch being ready to smoke.

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timmur

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Lookin really healthy! What are your thoughts on yield? Will they finish any sooner than when grown under HPS?
 

Ez Rider

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Veteran
Lookin really healthy! What are your thoughts on yield? Will they finish any sooner than when grown under HPS?

Not sure about yield, and afraid to jinx myself. At this point, I'm confident of more than 1oz/plant, but how much more, I don't know. I doubt I'm going to match my best hps run. It is possible that they'll finish a little faster, but too early to say. I most definitely have more red pistils than I'd expect at this stage, but I'm letting them go the full 8 unless they start dying on the vine or are obviously done at week 7. I know it's not ideal, but I have to adhere to a fairly fixed schedule, or it all breaks down on me. Sometimes the flowers are a little early, sometimes a little late, but they're always top notch. For various reasons, weekends are the only times I can harvest.
 

timmur

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Veteran
Not sure about yield, and afraid to jinx myself. At this point, I'm confident of more than 1oz/plant, but how much more, I don't know. I doubt I'm going to match my best hps run. It is possible that they'll finish a little faster, but too early to say. I most definitely have more red pistils than I'd expect at this stage, but I'm letting them go the full 8 unless they start dying on the vine or are obviously done at week 7. I know it's not ideal, but I have to adhere to a fairly fixed schedule, or it all breaks down on me. Sometimes the flowers are a little early, sometimes a little late, but they're always top notch. For various reasons, weekends are the only times I can harvest.

Understood on the schedule. I was just wondering if they could finish earlier irrespective of your schedule. By whatever method you use to determine the peak ripeness, please let us know where these land relative to HPS. It will really be a great contribution to the thread if folks can confirm (or not) that flowering time is reduced using CMH. The question of yield sounds like it will be difficult to ascertain on this round. Thanks for documenting everything EZ. :)
 

GoldenSyrup

Active member
Just to add to the convo, Timmur, a cut of mine that goes 63 days under HPS finished in 58 days under CMH. 5 days isn't a lot but it was still nice!

I don't think plants finish sooner under CMH, I think plants take longer under HPS!
 

Ez Rider

Active member
Veteran
Just to add to the convo, Timmur, a cut of mine that goes 63 days under HPS finished in 58 days under CMH. 5 days isn't a lot but it was still nice!

I don't think plants finish sooner under CMH, I think plants take longer under HPS!

That's what I get out of the little research I've done. It's not so much that the cmh makes them flower faster, but that the hps makes them take longer. I've always taken my sourbubble at 8weeks(+/-a day) under hps. I'll be keeping a close watch from week 7 on, but anticipate letting them still go 8 weeks.
 

timmur

Well-known member
Veteran
Just to add to the convo, Timmur, a cut of mine that goes 63 days under HPS finished in 58 days under CMH. 5 days isn't a lot but it was still nice!

I don't think plants finish sooner under CMH, I think plants take longer under HPS!

Five days is a lot in a large production system. That's almost 10% faster. :biggrin:
 

Ez Rider

Active member
Veteran
Day 42 of flower and still happy. You can see a little tip-burn on the leaves, and I've got a few crispy leaves here and there. I'm still working on dialing the feed strength with the blumats. The structure is great and the plants are super frosty. The pistils on the tops are MUCH redder than I'd expect at this stage. However, when I put a scope to the trics, they've obviously still got awhile to go.
picture.php
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My veg plants have been under the 315 for 2 weeks now, and they're starting to take off. They seem to be doing quite a bit better than they did under the t-5. I'm also adding v-h boost and ca/mg to my feed this time, so hard to say if it's the supplements, the lamp, or both. I'll get some veg pics next time too.
 

JJ_Terps

New member
New Room With Cycloptics

New Room With Cycloptics

Hello...

Upgrading from a tent to a divided room and I am considering Cycloptics Greenbeams. I suppose I'm considering them vs two 600/750 watt Gavitas. I have sent them my information for modeling and am supposed to talk to Flip early next week.

I would appreciate if someone with some experience with their lighting takes a look at my plans and tell me your thoughts?

Page 1 is my original design which had a 4'-6 wide flower room, but I I am bumping the width up to 4'-10. It'll shrink in the other direction slightly to about 5'-2. Page 2 has two options which reflects that larger size (almost). There'll be Orca Film on the walls & ceiling.

Disregard the rotating platform - I had LEC 315's in my head with that - but the 3 light array option is what intrigues me most because I don't think I can afford 4 lights. Don't even know if I can even afford 3... I live in the state Cycloptics does which means I'd have to pay sales tax. With shipping... I'm probably approaching close to $700 a light.


Everything else pretty much still applies. However, with the new size I may use a 171 cfm fan I have for the veg room and use the 334 cfm Max Fan for the intake. I made a mistake of purchasing two of the Max Fans without knowing exactly what my lights were going to be.

I look forward to hearing your comments.
 

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Ez Rider

Active member
Veteran
Hello...

Upgrading from a tent to a divided room and I am considering Cycloptics Greenbeams. I suppose I'm considering them vs two 600/750 watt Gavitas. I have sent them my information for modeling and am supposed to talk to Flip early next week.

I would appreciate if someone with some experience with their lighting takes a look at my plans and tell me your thoughts?

Page 1 is my original design which had a 4'-6 wide flower room, but I I am bumping the width up to 4'-10. It'll shrink in the other direction slightly to about 5'-2. Page 2 has two options which reflects that larger size (almost). There'll be Orca Film on the walls & ceiling.

Disregard the rotating platform - I had LEC 315's in my head with that - but the 3 light array option is what intrigues me most because I don't think I can afford 4 lights. Don't even know if I can even afford 3... I live in the state Cycloptics does which means I'd have to pay sales tax. With shipping... I'm probably approaching close to $700 a light.


Everything else pretty much still applies. However, with the new size I may use a 171 cfm fan I have for the veg room and use the 334 cfm Max Fan for the intake. I made a mistake of purchasing two of the Max Fans without knowing exactly what my lights were going to be.

I look forward to hearing your comments.

You may get away with 3 in a 5x5. See what the model says. I'm running 6 in a 5x9,with good results. It mostly depends on your targeted ppfd. I'm shooting for ~900 in flower, but timmur is more like 1300! I'm not sure about my actual ppfd's but hoping to take some measurements in the next few days. If you've got good credit, paypal does 6 months same-as-cash. That's how I bought mine. Both cycloptics and growershouse take paypal. Depending on your sales tax, it may be cheaper to buy from growers house.
 

GET MO

Registered Med User
Veteran
Day 42 of flower and still happy. You can see a little tip-burn on the leaves, and I've got a few crispy leaves here and there. I'm still working on dialing the feed strength with the blumats. The structure is great and the plants are super frosty. The pistils on the tops are MUCH redder than I'd expect at this stage. However, when I put a scope to the trics, they've obviously still got awhile to go.
View Image View Image

My veg plants have been under the 315 for 2 weeks now, and they're starting to take off. They seem to be doing quite a bit better than they did under the t-5. I'm also adding v-h boost and ca/mg to my feed this time, so hard to say if it's the supplements, the lamp, or both. I'll get some veg pics next time too.


lookin kill, and almost done for 45 days. How long does that strain usually run under hps?

I wonder if using a mass defoliation technique would work better with these (cmh) lights, since it seems to work better on plants that dont stretch as much. In the next few weeks ima get a 3x3 tent and another phantom to play with flowering under cmh. I love how the spectrum is so easy on the eyes!
 

JJ_Terps

New member
You may get away with 3 in a 5x5. See what the model says. I'm running 6 in a 5x9,with good results. It mostly depends on your targeted ppfd. I'm shooting for ~900 in flower, but timmur is more like 1300! I'm not sure about my actual ppfd's but hoping to take some measurements in the next few days. If you've got good credit, paypal does 6 months same-as-cash. That's how I bought mine. Both cycloptics and growershouse take paypal. Depending on your sales tax, it may be cheaper to buy from growers house.

Thanks I noticed today that they were sold at Growershouse and that would certainly make a lot of sense at 8% sales tax

Do you know if I am correct in my assumption that given the shape of the fixture, they can be arrayed in a circle like that?
 

timmur

Well-known member
Veteran
Thanks I noticed today that they were sold at Growershouse and that would certainly make a lot of sense at 8% sales tax

Do you know if I am correct in my assumption that given the shape of the fixture, they can be arrayed in a circle like that?

Yep. See model below from Cycloptics. Nice build BTW! :biggrin:

 
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