Gavita's are they really worth the price ??

bottletoke

bottletoke

Well-Known Member
Email gavita support with your info and they'll setup a lighting plan for you. After 2 grows I thought I had everything setup properly aND I was pretty happy then I emailed support after seeing a buddies layout and the plan they sent me brought me huge improvements, made me really see the magic these things bring out.
It's free so it's worth it just to see what they say.
 
bryangtho

bryangtho

Well-Known Member
bottletoke said:
Email gavita support with your info and they'll setup a lighting plan for you. After 2 grows I thought I had everything setup properly aND I was pretty happy then I emailed support after seeing a buddies layout and the plan they sent me brought me huge improvements, made me really see the magic these things bring out.
It's free so it's worth it just to see what they say.
Click to expand...
Yes thanks for that I will do that
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
Yeah just to echo a few people Cobs put out more light for less watts, Gavitas are a sick light... but damn... have fun with the AC costs. that matrix should be around 700-1000PPFD all over for around 6250W I hope you have used DE before because its about to be 150F in that room in like 30 mins. If its not too late to return them I would. Oh there is a 10K bulb thats DE that a guy I know uses for the whole grow, he swears by it its MH. Just as a fact to throw out there you could have had this for around the same price. This isnt even getting into the most efficient setup.

CXB3590DD36V5000K 50 COBS @2.4A ON 5.88 PROFILE HEATSINK
100 SQ.FT. CANOPY 92% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 4758.7
Cobs power watts: 4378
Total voltage forward: 1824
Total lumens: 762035
Total PAR watts assuming 10% loss: 2117
Total PPF: 9462.99
PPFD based on canopy area: 1018.59
PAR watts per sq.ft.: 21.17
Cob efficiency: 53.72%
Power watts per sq.ft.: 43.78
Voltage forward per cob: 36.48
Lumens per watt: 174.06
Heatsink riser thickness / number of fins / fin's length: 0.27in/14/1.0in
Heatsink area per inch: 260.01 cm^2
Total heat watts: 2026
umol/s/W / CRI: 4.47 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 935 inches
Heatsink length active cooling @40cm^2/heatwatt: 312 inches
COB cost dollar per PAR watt: $1.1
Electric cost @12/12 in 30 days: $257.47
Electric cost @18/6 in 30 days: $385.95
Cost per cob: $46.5
Heatsink cost per inch cut: $1.74
Total cobs cost: $2325
Total heatsink passive cooling cost: $1627
Total heatsink active cooling cost: $542

Heres the bulb

http://growershouse.com/solis-tek-double-ended-1000-mh-10k
 
bottletoke

bottletoke

Well-Known Member
When I priced out diy cobs 4-6 weeks ago I wasnt getting anything close to what I would be getting with a $420usd 1000w de gavita? Ive been running them for a little bit now and my heatpump isn't costing me that much......besides the startup which is 4-5 times an hour for a couple seconds.
Totally agree cobs are the way to go but for funds upfront where else can u get 5x5(5x6) coverage with those par values for under $500?
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
bottletoke said:
When I priced out diy cobs 4-6 weeks ago I wasnt getting anything close to what I would be getting with a $420usd 1000w de gavita? Ive been running them for a little bit now and my heatpump isn't costing me that much......besides the startup which is 4-5 times an hour for a couple seconds.
Totally agree cobs are the way to go but for funds upfront where else can u get 5x5(5x6) coverage with those par values for under $500?
Click to expand...
Easy 5000k cxb3590 8 driven at 2.4A should be around the same price and put out more than a Gavita all day. You prob weren't lookin at top bins in that color range
 
bottletoke

bottletoke

Well-Known Member
MeGaKiLlErMaN said:
Easy 5000k cxb3590 8 driven at 2.4A should be around the same price and put out more than a Gavita all day. You prob weren't lookin at top bins in that color range
Click to expand...
Including power supply/drivers, heat sinks and everything required to make an equivalent fixture is going to be around the same price as a $420 1000w de gavita?
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
Closer to $ 600 but yes and it would almost be 2 times the PPFD. Not hard to work out... and to give you something that is cheaper.... look lower.


CXB3590DD36V5000K 8 COBS @2.4A ON 5.88 PROFILE HEATSINK
16 SQ.FT. CANOPY 92% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 760.87
Cobs power watts: 700
Total voltage forward: 292
Total lumens: 121842
Total PAR watts assuming 10% loss: 338
Total PPF: 1510.86
PPFD based on canopy area: 1016.42
PAR watts per sq.ft.: 21.13
Cob efficiency: 53.72%
Power watts per sq.ft.: 43.75
Voltage forward per cob: 36.48
Lumens per watt: 174.06
Heatsink riser thickness / number of fins / fin's length: 0.27in/14/1.0in
Heatsink area per inch: 260.01 cm^2
Total heat watts: 324
umol/s/W / CRI: 4.47 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 150 inches
Heatsink length active cooling @40cm^2/heatwatt: 50 inches
COB cost dollar per PAR watt: $1.1
Electric cost @12/12 in 30 days: $41.59
Electric cost @18/6 in 30 days: $62.13
Cost per cob: $46.5
Heatsink cost per inch cut: $1.74
Total cobs cost: $372
Total heatsink passive cooling cost: $261
Total heatsink active cooling cost: $87



The same as a gavita PPFD wise. $469 about.


CXB3590DD36V5000K 4 COBS @3.6A ON 5.88 PROFILE HEATSINK
16 SQ.FT. CANOPY 92% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 597.83
Cobs power watts: 550
Total voltage forward: 153
Total lumens: 77402
Total PAR watts assuming 10% loss: 215
Total PPF: 961.05
PPFD based on canopy area: 646.54
PAR watts per sq.ft.: 13.44
Cob efficiency: 43.44%
Power watts per sq.ft.: 34.38
Voltage forward per cob: 38.22
Lumens per watt: 140.73
Heatsink riser thickness / number of fins / fin's length: 0.27in/14/1.0in
Heatsink area per inch: 260.01 cm^2
Total heat watts: 311
umol/s/W / CRI: 4.47 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 144 inches
Heatsink length active cooling @40cm^2/heatwatt: 48 inches
COB cost dollar per PAR watt: $0.87
Electric cost @12/12 in 30 days: $32.78
Electric cost @18/6 in 30 days: $48.92
Cost per cob: $46.5
Heatsink cost per inch cut: $1.74
Total cobs cost: $186
Total heatsink passive cooling cost: $251
Total heatsink active cooling cost: $83
 
bottletoke

bottletoke

Well-Known Member
MeGaKiLlErMaN said:
Closer to $ 600 but yes and it would almost be 2 times the PPFD. Not hard to work out... and to give you something that is cheaper.... look lower.


CXB3590DD36V5000K 8 COBS @2.4A ON 5.88 PROFILE HEATSINK
16 SQ.FT. CANOPY 92% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 760.87
Cobs power watts: 700
Total voltage forward: 292
Total lumens: 121842
Total PAR watts assuming 10% loss: 338
Total PPF: 1510.86
PPFD based on canopy area: 1016.42
PAR watts per sq.ft.: 21.13
Cob efficiency: 53.72%
Power watts per sq.ft.: 43.75
Voltage forward per cob: 36.48
Lumens per watt: 174.06
Heatsink riser thickness / number of fins / fin's length: 0.27in/14/1.0in
Heatsink area per inch: 260.01 cm^2
Total heat watts: 324
umol/s/W / CRI: 4.47 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 150 inches
Heatsink length active cooling @40cm^2/heatwatt: 50 inches
COB cost dollar per PAR watt: $1.1
Electric cost @12/12 in 30 days: $41.59
Electric cost @18/6 in 30 days: $62.13
Cost per cob: $46.5
Heatsink cost per inch cut: $1.74
Total cobs cost: $372
Total heatsink passive cooling cost: $261
Total heatsink active cooling cost: $87



The same as a gavita PPFD wise. $469 about.


CXB3590DD36V5000K 4 COBS @3.6A ON 5.88 PROFILE HEATSINK
16 SQ.FT. CANOPY 92% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 597.83
Cobs power watts: 550
Total voltage forward: 153
Total lumens: 77402
Total PAR watts assuming 10% loss: 215
Total PPF: 961.05
PPFD based on canopy area: 646.54
PAR watts per sq.ft.: 13.44
Cob efficiency: 43.44%
Power watts per sq.ft.: 34.38
Voltage forward per cob: 38.22
Lumens per watt: 140.73
Heatsink riser thickness / number of fins / fin's length: 0.27in/14/1.0in
Heatsink area per inch: 260.01 cm^2
Total heat watts: 311
umol/s/W / CRI: 4.47 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 144 inches
Heatsink length active cooling @40cm^2/heatwatt: 48 inches
COB cost dollar per PAR watt: $0.87
Electric cost @12/12 in 30 days: $32.78
Electric cost @18/6 in 30 days: $48.92
Cost per cob: $46.5
Heatsink cost per inch cut: $1.74
Total cobs cost: $186
Total heatsink passive cooling cost: $251
Total heatsink active cooling cost: $83
Click to expand...
So where would one source all these goods? I'm guessing it would be through several suppliers instead of everything coming from one purchase??
 
a mongo frog

a mongo frog

Well-Known Member
MeGaKiLlErMaN said:
Closer to $ 600 but yes and it would almost be 2 times the PPFD. Not hard to work out... and to give you something that is cheaper.... look lower.


CXB3590DD36V5000K 8 COBS @2.4A ON 5.88 PROFILE HEATSINK
16 SQ.FT. CANOPY 92% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 760.87
Cobs power watts: 700
Total voltage forward: 292
Total lumens: 121842
Total PAR watts assuming 10% loss: 338
Total PPF: 1510.86
PPFD based on canopy area: 1016.42
PAR watts per sq.ft.: 21.13
Cob efficiency: 53.72%
Power watts per sq.ft.: 43.75
Voltage forward per cob: 36.48
Lumens per watt: 174.06
Heatsink riser thickness / number of fins / fin's length: 0.27in/14/1.0in
Heatsink area per inch: 260.01 cm^2
Total heat watts: 324
umol/s/W / CRI: 4.47 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 150 inches
Heatsink length active cooling @40cm^2/heatwatt: 50 inches
COB cost dollar per PAR watt: $1.1
Electric cost @12/12 in 30 days: $41.59
Electric cost @18/6 in 30 days: $62.13
Cost per cob: $46.5
Heatsink cost per inch cut: $1.74
Total cobs cost: $372
Total heatsink passive cooling cost: $261
Total heatsink active cooling cost: $87



The same as a gavita PPFD wise. $469 about.


CXB3590DD36V5000K 4 COBS @3.6A ON 5.88 PROFILE HEATSINK
16 SQ.FT. CANOPY 92% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 597.83
Cobs power watts: 550
Total voltage forward: 153
Total lumens: 77402
Total PAR watts assuming 10% loss: 215
Total PPF: 961.05
PPFD based on canopy area: 646.54
PAR watts per sq.ft.: 13.44
Cob efficiency: 43.44%
Power watts per sq.ft.: 34.38
Voltage forward per cob: 38.22
Lumens per watt: 140.73
Heatsink riser thickness / number of fins / fin's length: 0.27in/14/1.0in
Heatsink area per inch: 260.01 cm^2
Total heat watts: 311
umol/s/W / CRI: 4.47 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 144 inches
Heatsink length active cooling @40cm^2/heatwatt: 48 inches
COB cost dollar per PAR watt: $0.87
Electric cost @12/12 in 30 days: $32.78
Electric cost @18/6 in 30 days: $48.92
Cost per cob: $46.5
Heatsink cost per inch cut: $1.74
Total cobs cost: $186
Total heatsink passive cooling cost: $251
Total heatsink active cooling cost: $83
Click to expand...
So your going to beat a 1000 watt DE with your cobs in a 4x4 area?
 
Uberknot

Uberknot

Well-Known Member
bottletoke said:
I know it's easily possible with cobs, it's the price that has me on the fence.the cheapest diy cob that is equal to a gavita's par value was around $1300......
Click to expand...

You sure about those numbers? I'd say a lot less than that. unless you are talking about buying one of the dudes DIY kits...now that you can find all over the place with pricing, butt with cob prices coming down they should drop a little.

"The same as a gavita PPFD wise. $469 about.


CXB3590DD36V5000K 4 COBS @3.6A ON 5.88 PROFILE HEATSINK
16 SQ.FT. CANOPY 92% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 597.83
Cobs power watts: 550
Total voltage forward: 153
Total lumens: 77402
Total PAR watts assuming 10% loss: 215
Total PPF: 961.05
PPFD based on canopy area: 646.54
PAR watts per sq.ft.: 13.44
Cob efficiency: 43.44%
Power watts per sq.ft.: 34.38
Voltage forward per cob: 38.22
Lumens per watt: 140.73
Heatsink riser thickness / number of fins / fin's length: 0.27in/14/1.0in
Heatsink area per inch: 260.01 cm^2
Total heat watts: 311
umol/s/W / CRI: 4.47 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 144 inches
Heatsink length active cooling @40cm^2/heatwatt: 48 inches
COB cost dollar per PAR watt: $0.87
Electric cost @12/12 in 30 days: $32.78
Electric cost @18/6 in 30 days: $48.92
Cost per cob: $46.5
Heatsink cost per inch cut: $1.74
Total cobs cost: $186
Total heatsink passive cooling cost: $251
Total heatsink active cooling cost: $83"
 
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bottletoke

bottletoke

Well-Known Member
I keep thinking there's a catch lol, so with this setup I'll be able to flower 6' plants and have penetration equal penetration as a Gavita? Also this setup is shy of a gavita's 25sqft footprint.....
 
bryangtho

bryangtho

Well-Known Member
The thing is over here as long as you don't go over 10 plant. Its just a slap on the wrist and a small fine. That's why I grow my plants so big and I feel that 8 gavita's under 10 plants is the way to go. And besides I make all my pot up all my feeder rings and build the room I don't want to build the lights. Its a lot of work with 4 room on the go its way to mush work
 
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MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
bottletoke said:
I keep thinking there's a catch lol, so with this setup I'll be able to flower 6' plants and have penetration equal penetration as a Gavita? Also this setup is shy of a gavita's 25sqft footprint.....
Click to expand...
That footprint is only if you use multiple lights if you use one you will have reading lower than 400PPFD which is only good for veg... There is a catch the efficiency... It's garbage compared to lower driven leds.
a mongo frog said:
So your going to beat a 1000 watt DE with your cobs in a 4x4 area?
Click to expand...
I know I am but the results will be shown, still making clones currently.
bottletoke said:
I know it's easily possible with cobs, it's the price that has me on the fence.the cheapest diy cob that is equal to a gavita's par value was around $1300......
Click to expand...
That would be a good setup, but I can make one that would be around $850 and have the the most even spread ever and be cool to the touch.. Kits can be over priced since they save you the time figuring out what to get
 
bottletoke

bottletoke

Well-Known Member
MeGaKiLlErMaN said:
That footprint is only if you use multiple lights if you use one you will have reading lower than 400PPFD which is only good for veg... There is a catch the efficiency... It's garbage compared to lower driven leds.


I know I am but the results will be shown, still making clones currently.


That would be a good setup, but I can make one that would be around $850 and have the the most even spread ever and be cool to the touch.. Kits can be over priced since they save you the time figuring out what to get
Click to expand...
Can it grow big plants? 5-6' and penetrate the canopy?
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
bottletoke said:
Can it grow big plants? 5-6' and penetrate the canopy?
Click to expand...
Yes it can but it has to be highly driven with reflectors.. But that's not the point of cobs, if you Scrog out the same area you will get very good results to growing a plant big. So less time in veg and more in flower.. Saving you time and money while getting in more cycles per year.

bottletoke said:
Yup, got a few gavita's going.
Click to expand...
Hope you like them, after this side by side I'll be selling mine for cheap to get more LEDs. Haters gonna hate lol
 
Uberknot

Uberknot

Well-Known Member
Like I said if they did not lose efficiency so fast and the cost was lower for a bulb and the heat output was less and....yeah there's that height above canopy thing as well....It might be worth it...

The costs in electric, cooling, and replacing favor Cobs by a long way and newer Cob tech is already on the way.

If you have lots of headroom and $ to spend and want something you can just slap up and grow, regular light bulbs would be an option.
 
bryangtho

bryangtho

Well-Known Member
Uberknot said:
Like I said if they did not lose efficiency so fast and the cost was lower for a bulb and the heat output was less and....yeah there's that height above canopy thing as well....It might be worth it...

The costs in electric, cooling, and replacing favor Cobs by a long way and newer Cob tech is already on the way.

If you have lots of headroom and $ to spend and want something you can just slap up and grow, regular light bulbs would be an option.
Click to expand...
They are still at 95% with 5000 hours
 
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