What LEDs for 3x3 tent?

[Snucks]

There are no temp issues with a 315. You get an affordable plug and play light with a proper complete spectrum of light.

You can also get an A/C hood if you deem it necessary but that is rarely the case. You need to listen to people who have actually used the lights they're talking about and not guys going off of bro science and have no experience.

But if you are going to go COB I commend you for taking the DIY route.

Who was going off bro science? I've been going by what everybody on here has said... you being one of them. ha. and forming my own opinion. Which is why earlier In this thread I said I would consider the cmh and also as why I am highly considering building my own cob, per what people here recommend.

 

[Evil-Mobo]

Who was going off bro science? I've been going by what everybody on here has said... you being one of them. ha. and forming my own opinion. Which is why earlier In this thread I said I would consider the cmh and also as why I am highly considering building my own cob, per what people here recommend.

I was not referring to you bro calm down lol. You have certain people giving you advice on products with no experience with said products. It's up to you to weed out the facts is all I am saying.

There will be no more heat issue with a 315 than with COB's in it's place in a 3x3. As I have stated before already My SS315 with the ballast on the light ran 5-10 degrees cooler in my 3x3 (not air cooled) than my old Tasty T4-2100 light. The CMH brought out nicer color in the plant too.

My first ever grow, SS315 in a 3x3 yield was 1/2 lb dry 8 week veg. Just the one plant.

Edit: I had to dig through the 315 LEC thread but here's the plant, this was my first grow ever back in May

 

[Uberknot]

You already know the answer

 

[Snucks]

I was not referring to you bro calm down lol. You have certain people giving you advice on products with no experience with said products. It's up to you to weed out the facts is all I am saying.

There will be no more heat issue with a 315 than with COB's in it's place in a 3x3. As I have stated before already My SS315 with the ballast on the light ran 5-10 degrees cooler in my 3x3 (not air cooled) than my old Tasty T4-2100 light. The CMH brought out nicer color in the plant too.

My first ever grow, SS315 in a 3x3 yield was 1/2 lb dry 8 week veg. Just the one plant.

Lol I was in no way heated in that reply. But yeah, if I did happen to go with the cmh what else would I need to buy for the tent? Would I need in line or exhaust?

 

[Hybridway]

Curveball time. ..go with cree 2700k and 3000k driven @ 1050ma click..voom..pow lol.
View attachment 3853247 View attachment 3853248

Six has shown me to many of these taller plants/colas types for Me to not publicly retract my statements I've made in the past about soft cobs only being useful to the tops of scrogs.
Personally I buy pre-built fixtures & like my cobs over the 50% mark as to get the most out of the fixture I buy.
But, there's no denying the soft cobs their place.
@MeGaKiLlErMaN, I'd like to apologize to you for saying your soft ran fixture will not grow you long buds. I got to caught up in the par #'s & drop affiliated w/ softer cobs. My bad! I think I was even rudish about it that day.
Six, thanks for sharing your results here on this forum.
I was wrong although I still prefer mine to run over the 50% line.
To each his own. The #'s & science aspect of this game can confuse people sometimes. It's the results that matter.
Peace!

 

[Evil-Mobo]

Lol I was in no way heated in that reply. But yeah, if I did happen to go with the cmh what else would I need to buy for the tent? Would I need in line or exhaust?

Hard to tell nowadays in here. I am just trying to help.

My 3x3 right now is temporarily running my 8 bulb T5 and open until my 600W Blue MH bulb arrives. I sold my COB light.

When I had my SS 315 I just had my 4" fan/filter combo which vented out into the room. I did not A/C my 315 but if one wanted or needed to you can (depending on reflector) and you would have some really low temps. I run passive intakes as my grow area is a spare room with tents.

For a 315 today this would be the route I would go:
http://growershouse.com/prism-lighting-science-315w-cmh-ballast-philips-bulb-combo-120-240v

And this reflector:
http://growershouse.com/phantom-315w-ceramic-metal-halide-cmh-reflector

That reflector is just as good as the SS one, and if you need it later or right away for $30 you get the A/C kit. This also allows you to have your ballast outside the grow area if you want (I recommend this)

 

[Uberknot]

Lol I was in no way heated in that reply. But yeah, if I did happen to go with the cmh what else would I need to buy for the tent? Would I need in line or exhaust?

Some kind of tube/enclosed vented fixture would be nice so you can get rid of the heat with an inline fan.

Either way you do it you'll need exhaust.

 

[Evil-Mobo]

These are the fans I am running now:
http://growershouse.com/hyper-fan-6in-315-cfm

They make a 4" version I'd grab that for your 3x3. Comes with the speed controller really nice setup and not very loud. I have a 6" in my 5x9 cooling two HPS and running at maybe 35% speed. In my 3x3 I have the same and it runs even lower so very quiet. I like to have more fan than I need and be able to run it quieter. Just me though.

 

[MeGaKiLlErMaN]

Six has shown me to many of these taller plants/colas types for Me to not publicly retract my statements I've made in the past about soft cobs only being useful to the tops of scrogs.
Personally I buy pre-built fixtures & like my cobs over the 50% mark as to get the most out of the fixture I buy.
But, there's no denying the soft cobs their place.
@MeGaKiLlErMaN, I'd like to apologize to you for saying your soft ran fixture will not grow you long buds. I got to caught up in the par #'s & drop affiliated w/ softer cobs. My bad! I think I was even rudish about it that day.
Six, thanks for sharing your results here on this forum.
I was wrong although I still prefer mine to run over the 50% line.
To each his own. The #'s & science aspect of this game can confuse people sometimes. It's the results that matter.
Peace!

Six has shown me to many of these taller plants/colas types for Me to not publicly retract my statements I've made in the past about soft cobs only being useful to the tops of scrogs.
Personally I buy pre-built fixtures & like my cobs over the 50% mark as to get the most out of the fixture I buy.
But, there's no denying the soft cobs their place.
@MeGaKiLlErMaN, I'd like to apologize to you for saying your soft ran fixture will not grow you long buds. I got to caught up in the par #'s & drop affiliated w/ softer cobs. My bad! I think I was even rudish about it that day.
Six, thanks for sharing your results here on this forum.
I was wrong although I still prefer mine to run over the 50% line.
To each his own. The #'s & science aspect of this game can confuse people sometimes. It's the results that matter.
Peace!

48.875W per cob isnt that soft IMO, but I got you.

 

[MeGaKiLlErMaN]

I highly doubt you can build an LED to cover a 3x3 for cheaper than you can buy a 315 CMH , and they don't put off much heat.

Much cheaper actually. And this is a 4x4


Citizen.1212C4.3000K 16 COBS @1.05A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 94% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 625.53
Cobs power watts: 588
Total voltage forward: 560
Total lumens: 91140
Total PAR watts assuming 10% loss: 249
Total PPF: 1210.14
PPFD based on canopy area: 814.11
PAR watts per sq.ft.: 15.56
Cob efficiency: 47.09%
Power watts per sq.ft.: 36.75
Voltage forward per cob: 35.0
Lumens per watt: 155.0
Heatsink riser thickness / number of fins / fin's length: 0.3in/6/0.95in
Heatsink area per inch: 100.94 cm^2
Total heat watts: 311
umol/s/W / CRI: 4.86 / 80CRI
Heatsink length passive cooling @120cm^2/heatwatt: 370 inches
Heatsink length active cooling @40cm^2/heatwatt: 123 inches
COB cost dollar per PAR watt: $0.81
Electric cost @12/12 in 30 days: $34.28
Electric cost @18/6 in 30 days: $51.17
Cost per cob: $12.55
Heatsink cost per inch cut: $0.66
Total cobs cost: $201
Total heatsink passive cooling cost: $244
Total heatsink active cooling cost: $81

Or

Citizen.1212C4.3000K 16 COBS @0.7A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 94% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 404.26
Cobs power watts: 380
Total voltage forward: 542
Total lumens: 62320
Total PAR watts assuming 10% loss: 171
Total PPF: 831.06
PPFD based on canopy area: 559.09
PAR watts per sq.ft.: 10.69
Cob efficiency: 50.07%
Power watts per sq.ft.: 23.75
Voltage forward per cob: 33.9
Lumens per watt: 164.0
Heatsink riser thickness / number of fins / fin's length: 0.3in/6/0.95in
Heatsink area per inch: 100.94 cm^2
Total heat watts: 190
umol/s/W / CRI: 4.86 / 80CRI
Heatsink length passive cooling @120cm^2/heatwatt: 226 inches
Heatsink length active cooling @40cm^2/heatwatt: 75 inches
COB cost dollar per PAR watt: $1.17
Electric cost @12/12 in 30 days: $22.33
Electric cost @18/6 in 30 days: $33.25
Cost per cob: $12.55
Heatsink cost per inch cut: $0.66
Total cobs cost: $201
Total heatsink passive cooling cost: $149
Total heatsink active cooling cost: $49

Or even harder if you really want to


Citizen.1212C4.3000K 16 COBS @1.4A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 94% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 860.64
Cobs power watts: 809
Total voltage forward: 578
Total lumens: 118114
Total PAR watts assuming 10% loss: 324
Total PPF: 1574.64
PPFD based on canopy area: 1059.33
PAR watts per sq.ft.: 20.25
Cob efficiency: 44.51%
Power watts per sq.ft.: 50.56
Voltage forward per cob: 36.1
Lumens per watt: 146.0
Heatsink riser thickness / number of fins / fin's length: 0.3in/6/0.95in
Heatsink area per inch: 100.94 cm^2
Total heat watts: 449
umol/s/W / CRI: 4.86 / 80CRI
Heatsink length passive cooling @120cm^2/heatwatt: 534 inches
Heatsink length active cooling @40cm^2/heatwatt: 178 inches
COB cost dollar per PAR watt: $0.62
Electric cost @12/12 in 30 days: $46.97
Electric cost @18/6 in 30 days: $70.21
Cost per cob: $12.55
Heatsink cost per inch cut: $0.66
Total cobs cost: $201
Total heatsink passive cooling cost: $352
Total heatsink active cooling cost: $117

 

[Evil-Mobo]

Much cheaper actually. And this is a 4x4


Citizen.1212C4.3000K 16 COBS @1.05A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 94% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 625.53
Cobs power watts: 588
Total voltage forward: 560
Total lumens: 91140
Total PAR watts assuming 10% loss: 249
Total PPF: 1210.14
PPFD based on canopy area: 814.11
PAR watts per sq.ft.: 15.56
Cob efficiency: 47.09%
Power watts per sq.ft.: 36.75
Voltage forward per cob: 35.0
Lumens per watt: 155.0
Heatsink riser thickness / number of fins / fin's length: 0.3in/6/0.95in
Heatsink area per inch: 100.94 cm^2
Total heat watts: 311
umol/s/W / CRI: 4.86 / 80CRI
Heatsink length passive cooling @120cm^2/heatwatt: 370 inches
Heatsink length active cooling @40cm^2/heatwatt: 123 inches
COB cost dollar per PAR watt: $0.81
Electric cost @12/12 in 30 days: $34.28
Electric cost @18/6 in 30 days: $51.17
Cost per cob: $12.55
Heatsink cost per inch cut: $0.66
Total cobs cost: $201
Total heatsink passive cooling cost: $244
Total heatsink active cooling cost: $81

Or

Citizen.1212C4.3000K 16 COBS @0.7A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 94% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 404.26
Cobs power watts: 380
Total voltage forward: 542
Total lumens: 62320
Total PAR watts assuming 10% loss: 171
Total PPF: 831.06
PPFD based on canopy area: 559.09
PAR watts per sq.ft.: 10.69
Cob efficiency: 50.07%
Power watts per sq.ft.: 23.75
Voltage forward per cob: 33.9
Lumens per watt: 164.0
Heatsink riser thickness / number of fins / fin's length: 0.3in/6/0.95in
Heatsink area per inch: 100.94 cm^2
Total heat watts: 190
umol/s/W / CRI: 4.86 / 80CRI
Heatsink length passive cooling @120cm^2/heatwatt: 226 inches
Heatsink length active cooling @40cm^2/heatwatt: 75 inches
COB cost dollar per PAR watt: $1.17
Electric cost @12/12 in 30 days: $22.33
Electric cost @18/6 in 30 days: $33.25
Cost per cob: $12.55
Heatsink cost per inch cut: $0.66
Total cobs cost: $201
Total heatsink passive cooling cost: $149
Total heatsink active cooling cost: $49

Or even harder if you really want to


Citizen.1212C4.3000K 16 COBS @1.4A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 94% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 860.64
Cobs power watts: 809
Total voltage forward: 578
Total lumens: 118114
Total PAR watts assuming 10% loss: 324
Total PPF: 1574.64
PPFD based on canopy area: 1059.33
PAR watts per sq.ft.: 20.25
Cob efficiency: 44.51%
Power watts per sq.ft.: 50.56
Voltage forward per cob: 36.1
Lumens per watt: 146.0
Heatsink riser thickness / number of fins / fin's length: 0.3in/6/0.95in
Heatsink area per inch: 100.94 cm^2
Total heat watts: 449
umol/s/W / CRI: 4.86 / 80CRI
Heatsink length passive cooling @120cm^2/heatwatt: 534 inches
Heatsink length active cooling @40cm^2/heatwatt: 178 inches
COB cost dollar per PAR watt: $0.62
Electric cost @12/12 in 30 days: $46.97
Electric cost @18/6 in 30 days: $70.21
Cost per cob: $12.55
Heatsink cost per inch cut: $0.66
Total cobs cost: $201
Total heatsink passive cooling cost: $352
Total heatsink active cooling cost: $117

Yup, and he has to build it and still has no IR or UV

 

[Danielson999]

Yup, and he has to build it and still has no IR or UV

Building it is part of the hobby and fun. Having IR and UV isn't going to do much anyway and if he wants it that bad he's better off adding a reptile bulb he can turn off while he's around his plants so he doesn't damage his eyes, or run it on a separate timer so it's off when you're around them.

 

[Evil-Mobo]

Building it is part of the hobby and fun. Having IR and UV isn't going to do much anyway and if he wants it that bad he's better off adding a reptile bulb he can turn off while he's around his plants so he doesn't damage his eyes, or run it on a separate timer so it's off when you're around them.

I'm not getting into anymore pissing contest over COB's brother. We are all entitled to our opinions, mine are based on feedback from growing in real life with a real garden and actually using the technologies discussed.

Thanks

 

[Danielson999]

I'm not getting into anymore pissing contest over COB's brother. We are all entitled to our opinions, mine are based on feedback from growing in real life with a real garden and actually using the technologies discussed.

Thanks

What does this have to do with cobs vs anything? Are you naturally that sensitive or just looking to start an argument over nothing? You made a comment about having to build a light and still have no uv/ir. I said building is half the fun and you can add uv light yourself. No need taking it where it doesn't belong going....

 

[Evil-Mobo]

What does this have to do with cobs vs anything? Are you naturally that sensitive or just looking to start an argument over nothing? You made a comment about having to build a light and still have no uv/ir. I said building is half the fun and you can add uv light yourself. No need taking it where it doesn't belong going....

Sensitive? Whos arguing? A lot of accusations you're throwing around there bud.

Have a good night lol

 

[Danielson999]

Sensitive? Whos arguing? A lot of accusations you're throwing around there bud.

Have a good night lol

Nobody was arguing. Until you mentioned you didn't want to get into a pissing contest out of nowhere. Go get some sleep.

 

[Evil-Mobo]

Nobody was arguing. Until you mentioned you didn't want to get into a pissing contest out of nowhere. Go get some sleep.

So who's the sensitive one ? All you do is fill threads with your passive aggressive attitude. I was talking to the OP so why exactly did you get involved? But you're trying to tell me I want to argue? Was I speaking to you? Did I quote you? No not until you started up with me again. You always have to step in right? No one can have an opinion different than yours even if based on real world feedback right? It's only what you say and nothing else? Lol. This section is titled LED and other lighting not LED only. So give it a rest already.

 

[Danielson999]

So who's the sensitive one ? All you do is fill threads with your passive aggressive attitude. I was talking to the OP so why exactly did you get involved? But you're trying to tell me I want to argue? Was I speaking to you? Did I quote you? No not until you started up with me again. You always have to step in right? No one can have an opinion different than yours even if based on real world feedback right? It's only what you say and nothing else? Lol. This section is titled LED and other lighting not LED only. So give it a rest already.

I don't care if you were speaking to me, it's a public forum. We are all entitled to our opinions and these threads are meant for discussion which is why I originally stated my opinion about building lights as being part of the fun of this hobby. And yes, you fill these threads with all your bs too so stifle the attitude. No point ruining another thread is there? These threads are meant for people to talk about lights, not just the people you want to hear from. Get over it. If you weren't so sensitive to begin with and started right in with the 'pissing contest' bs, we wouldn't have even typed another word about this crap. You done now? Cuz I am.

 

[Evil-Mobo]

I don't care if you were speaking to me, it's a public forum. We are all entitled to our opinions and these threads are meant for discussion which is why I originally stated my opinion about building lights as being part of the fun of this hobby. And yes, you fill these threads with all your bs too so stifle the attitude. No point ruining another thread is there? These threads are meant for people to talk about lights, not just the people you want to hear from. Get over it. If you weren't so sensitive to begin with and started right in with the 'pissing contest' bs, we wouldn't have even typed another word about this crap. You done now? Cuz I am.

No one complained about a word I said until your panties got in a bunch guilty conscience because if it wasn't true it wouldn't bother you right. And yes it is a public forum and I did the same as you give my opinion. You're not anyone to tell me what I can and can't say so piss off. Remember you started in with me here I was talking to the OP. Keep trying to flip it onto somehow I did something wrong lol. The thread are for people to talk about lights and it seems Everytime I do that there you are to start another argument. I don't understand why you can't just leave me alone. So you like me? I'm not into guys man not my thing but you're entitled to live your own way.

You done now?

 

[Danielson999]

Sorry Snucks! Good luck with your build and make sure you come share it everyone on here. No build is too small!