Yet another useless post. Do you actually know anything? Or do you just troll all day
That's seems a lot more reasonable
Gavita lights
- Thread starter sgrowdum
- Start date
MeGaKiLlErMaN
Well-Known Member
Data is in my Signature.
Use the COB LED CALCULATOR. Super easy and tells you exactly what you want to know. Ill attach it here. That said You can make a "1000W Cob light" for about $600-650.. but thats not how you measure how well youre using them. Meaning you do NOT need 100W in a 4x4 area.
Keep in mind that the COBs in this example are being ran as hard as they can to get you the watts you want.
CXB3590DB36V4000K 4 COBS @3.6A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 94% EFFICIENT DRIVER @13 CENTS PER KWH
Total power watts at the wall: 585.11
Cobs power watts: 550
Total voltage forward: 153
Total lumens: 72061
Total PAR watts assuming 10% loss: 201
Total PPF: 910.53
PPFD based on canopy area: 612.55 < Better than a DE HPS at 2FT check the Signature.
PAR watts per sq.ft.: 12.56
Cob efficiency: 40.56%
Power watts per sq.ft.: 34.38
Voltage forward per cob: 38.22
Lumens per watt: 131.02
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: 327
umol/s/W / CRI: 4.53 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 389 inches
Heatsink length active cooling @40cm^2/heatwatt: 130 inches
COB cost dollar per PAR watt: $1.0
Electric cost @12/12 in 30 days: $27.88
Electric cost @18/6 in 30 days: $41.57
Cost per cob: $50.17
Heatsink cost per inch cut: $0.66
Total cobs cost: $201
Total heatsink passive cooling cost: $257
Total heatsink active cooling cost: $85
CXB3590DB36V4000K 6 COBS @3.6A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 94% EFFICIENT DRIVER @13 CENTS PER KWH
Total power watts at the wall: 878.72
Cobs power watts: 826
Total voltage forward: 229
Total lumens: 108223
Total PAR watts assuming 10% loss: 302
Total PPF: 1368.06
PPFD based on canopy area: 920.35
PAR watts per sq.ft.: 18.88
Cob efficiency: 40.56%
Power watts per sq.ft.: 51.63
Voltage forward per cob: 38.22
Lumens per watt: 131.02
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: 491
umol/s/W / CRI: 4.53 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 584 inches
Heatsink length active cooling @40cm^2/heatwatt: 195 inches
COB cost dollar per PAR watt: $1.0
Electric cost @12/12 in 30 days: $41.62
Electric cost @18/6 in 30 days: $62.19
Cost per cob: $50.17
Heatsink cost per inch cut: $0.66
Total cobs cost: $301
Total heatsink passive cooling cost: $385
Total heatsink active cooling cost: $128
CXB3590DB36V4000K 8 COBS @3.6A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 94% EFFICIENT DRIVER @13 CENTS PER KWH
Total power watts at the wall: 1171.28
Cobs power watts: 1101
Total voltage forward: 306
Total lumens: 144253
Total PAR watts assuming 10% loss: 402
Total PPF: 1821.06
PPFD based on canopy area: 1225.11
PAR watts per sq.ft.: 25.13
Cob efficiency: 40.56%
Power watts per sq.ft.: 68.81
Voltage forward per cob: 38.22
Lumens per watt: 131.02
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: 654
umol/s/W / CRI: 4.53 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 777 inches
Heatsink length active cooling @40cm^2/heatwatt: 259 inches
COB cost dollar per PAR watt: $1.0
Electric cost @12/12 in 30 days: $55.32
Electric cost @18/6 in 30 days: $82.72
Cost per cob: $50.17
Heatsink cost per inch cut: $0.66
Total cobs cost: $401
Total heatsink passive cooling cost: $513
Total heatsink active cooling cost: $170
JorgeGonzales
Well-Known Member
JorgeGonzales
Well-Known Member
Got it, you weren't pretending to not understand literally anything about how LEDs work. Well, that works for this thread too. Continue.
There it is again. You really don't know shit do you? Running your mouth and you don't have a single shred of useful info LOL and I'm the Noob.
Lmao I'm engaging options and intelligent conversation. You are posting veggies videos. I see how that helps. Looks to me like it's disguising your ignorance.
JorgeGonzales
Well-Known Member
MeGaKiLlErMaN
Well-Known Member
try to avert from name calling, @JorgeGonzales knows what hes talking about. As with alot of people over on the LED side.. Doesnt take well to name calling.
Go ahead. Post some personal experiences detailing why one is better than the other. I'll just be here waiting..
I'm the one who should be watching my behavior? Lmao I see how that works..
JorgeGonzales
Well-Known Member
In fairness, I've did post video about how loving vegetables. In my defense, that is as on topic as this entire thread.
So, here are some more cute animals, as long as we are off-topic:
sixstring2112
Well-Known Member
Cant say i didnt warn ya lol.14 pages later and you probably still dont know shit about cobs.problem now is all the smarter people on led probably dont want to help you ie... @Stephenj37826 @CobKits @JorgeGonzalesother than hps lol.no but really theres a ton of gavita dick waggin threads here in the led section so just search it out or prepare for another cockfest
Why not put some cobs over just 1 of your 3x3 trays and compare them against hps for yourself? I would bet 500w of cob over a 3 x 3 will produce more weight than any 600w hid over the same space.
MeGaKiLlErMaN
Well-Known Member
Hey I gave you the info you requested. Idk what else there is to discuss on here unless you have another question?
I'm not directly asking anything from you. You can carry on.
sixstring2112
Well-Known Member
You want us to bring all the info to you here in this thread lol. Do some fucking reading and research on your own. Maybe the good doctor rivera will hook you up bwahahahahaha.
I didn't ask you a single question so yeah.. Also is that not what the Internet is for.. You know a public forum where info is shared lol. GTFO with the old "use the search button" response. You don't like the thread post elsewhere clown shoes.
JorgeGonzales
Well-Known Member
Completely wrong forum, not interested in LED lights. He fucked up posting in here, and continues doubling down on that fuckup while we get sucked into another trollfest about LED vs COBs.
Wow. Anyway, at least we got some solid youtube videos out of it, IMHO.
Bye, Felicia.
