Best Red Supplementation with COBs?

MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
I thought that I would put together a light that was cheap AF and put down the photons. and the details are all here. I know if you were to use this in flower it wouldnt have the reds that a flowering plant craves...

So what are some solid options to help finish out this light? Ive seen a few options but they were all cheap Chinese LEDs and I would rather have some quality.



CXB3590DD36V5000K 8 COBS @2.1A ON 5.88 PROFILE HEATSINK
16 SQ.FT. CANOPY 92% EFFICIENT DRIVER @13 CENTS PER KWH
Total power watts at the wall: 656.52
Cobs power watts: 604
Total voltage forward: 288
Total lumens: 112845
Total PAR watts assuming 10% loss: 313
Total PPF: 1399.11
PPFD based on canopy area: 941.24
PAR watts per sq.ft.: 19.56
Cob efficiency: 57.66%
Power watts per sq.ft.: 37.75
Voltage forward per cob: 35.97
Lumens per watt: 186.83
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: 256
umol/s/W / CRI: 4.47 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 118 inches
Heatsink length active cooling @40cm^2/heatwatt: 39 inches
COB cost dollar per PAR watt: $1.19
Electric cost @12/12 in 30 days: $31.23
Electric cost @18/6 in 30 days: $46.59
Cost per cob: $46.5
Heatsink cost per inch cut: $1.74
Total cobs cost: $372
Total heatsink passive cooling cost: $205
Total heatsink active cooling cost: $67
 
LED Light User

LED Light User

Active Member
MeGaKiLlErMaN said:
I thought that I would put together a light that was cheap AF and put down the photons. and the details are all here. I know if you were to use this in flower it wouldnt have the reds that a flowering plant craves...

So what are some solid options to help finish out this light? Ive seen a few options but they were all cheap Chinese LEDs and I would rather have some quality.



CXB3590DD36V5000K 8 COBS @2.1A ON 5.88 PROFILE HEATSINK
16 SQ.FT. CANOPY 92% EFFICIENT DRIVER @13 CENTS PER KWH
Total power watts at the wall: 656.52
Cobs power watts: 604
Total voltage forward: 288
Total lumens: 112845
Total PAR watts assuming 10% loss: 313
Total PPF: 1399.11
PPFD based on canopy area: 941.24
PAR watts per sq.ft.: 19.56
Cob efficiency: 57.66%
Power watts per sq.ft.: 37.75
Voltage forward per cob: 35.97
Lumens per watt: 186.83
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: 256
umol/s/W / CRI: 4.47 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 118 inches
Heatsink length active cooling @40cm^2/heatwatt: 39 inches
COB cost dollar per PAR watt: $1.19
Electric cost @12/12 in 30 days: $31.23
Electric cost @18/6 in 30 days: $46.59
Cost per cob: $46.5
Heatsink cost per inch cut: $1.74
Total cobs cost: $372
Total heatsink passive cooling cost: $205
Total heatsink active cooling cost: $67
Click to expand...
Nice Investment Dude
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
LED Light User said:
Space 2 Fire?
Click to expand...
Not sure what you mean by that... but this is my current setup.. on passive heatsinks though.


CXB3590DB36V4000K 16 COBS @1.4A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 92% EFFICIENT DRIVER @13 CENTS PER KWH
Total power watts at the wall: 850.0
Cobs power watts: 782
Total voltage forward: 558
Total lumens: 154163
Total PAR watts assuming 10% loss: 430
Total PPF: 1947.9
PPFD based on canopy area: 1310.44
PAR watts per sq.ft.: 26.88
Cob efficiency: 61.03%
Power watts per sq.ft.: 48.88
Voltage forward per cob: 34.89
Lumens per watt: 197.14
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: 305
umol/s/W / CRI: 4.53 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 363 inches
Heatsink length active cooling @40cm^2/heatwatt: 121 inches
COB cost dollar per PAR watt: $1.87
Electric cost @12/12 in 30 days: $40.28
Electric cost @18/6 in 30 days: $60.17
Cost per cob: $50.17
Heatsink cost per inch cut: $0.66
Total cobs cost: $803
Total heatsink passive cooling cost: $240
Total heatsink active cooling cost: $79
 
V

VegasWinner

Well-Known Member
I like to use Deep Red InfraRed and Far Red leds 3w cree for bloom, for veg I add Royal Blue can get them from a couple of source steves and rapidleds. What type of drivers are you going to use, mean well LDD style perhaps with a MW power supply 150w-48v or a 200w-48v. How many? I use 12DR 12IR,and 15FR in a 2x2. peace
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
VegasWinner said:
I like to use Deep Red InfraRed and Far Red leds 3w cree for bloom, for veg I add Royal Blue can get them from a couple of source steves and rapidleds. What type of drivers are you going to use, mean well LDD style perhaps with a MW power supply 150w-48v or a 200w-48v. How many? I use 12DR 12IR,and 15FR in a 2x2. peace
Click to expand...
That's a good amount of soldering, maybe I'll go with the cheaper 100W red cobs that go from 600-660nm. I prefer easy as well... Plus I'll only be using it for bloom.

http://www.ebay.com/itm/like/262222265000?lpid=82&chn=ps&ul_ref=http%3A%2F%2Frover.ebay.com%2Frover%2F1%2F711-117182-37290-0%2F2%3Fmtid%3D1588%26kwid%3D1%26crlp%3D53601919689_324272%26itemid%3D262222265000%26targetid%3D173539325289%26rpc%3D0.13%26rpc_upld_id%3D79769%26device%3Dm%26mpre%3Dhttp%253A%252F%252Fwww.ebay.com%252Fulk%252Fitm%252Flike%252F262222265000%253Flpid%253D82%2526chn%253Dps%26adtype%3Dpla%26googleloc%3D9016837%26poi%3D9016838%26campaignid%3D239125209%26adgroupid%3D14978428809%26rlsatarget%3Dpla-173539325289%26gclid%3DCjwKEAjw34i_BRDH9fbylbDJw1gSJAAvIFqUotvx7J242kpSjYY6O2Eg4A0CutVedCV_XloIUkqW-xoCxWzw_wcB%26srcrot%3D711-117182-37290-0%26rvr_id%3D1097667443608&ul_noapp=true
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
Could get 400W of red (2 sets of 100W) for $106... Not top shelf and probably not efficient.. But I would run at maybe 200W and it would still be enough IMO. And they would only be on for 12 hours a day :) so far this seems like the best option
 

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VegasWinner

Well-Known Member
MeGaKiLlErMaN said:
Could get 400W of red (2 sets of 100W) for $106... Not top shelf and probably not efficient.. But I would run at maybe 200W and it would still be enough IMO. And they would only be on for 12 hours a day :) so far this seems like the best option
Click to expand...
It is frequency that matters. If you are going that way it is not watts that are as important as frequency. IR good for thc development deep red good for health causes some stretch. Blue creates healthy and closer nodes. Green for seedlings and good overall growth health. Sun light provides all of this in small amounts but enough to trigger plant responses. Peace
 
CobKits

CobKits

Well-Known Member
sixstring2112 said:
have you seen this vid yet? he talked about his opinion on far reds in it at about 5:30 in the vid
Click to expand...
excellent as always

i think its interesting that while the new mil was able to shorten the nodes substantially, in the end it made no difference in yield since he had no shortage of height

it would be cool to start a jacks thread over on the nutes board and really dial in the early/late bloom regimens

im a recent convert after 20 years of GH

using 3:2:1 in bloom and 3:3:1.5 in veg and looking great
 
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