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Building a Home Made LED
- Thread starter tenthirty
- Start date
REALSTYLES
Member
I forgot to mention I have them turned down to 186 watts each panel and can be turned up to 413 watts per panel. 8 cobs per panel and 2 Meanwell HLG-185H-C700B drivers
littlejacob
New member
Bonjour
What kind of cob you would use for a vegg pannel with a hlg-185-...? I was on the Vero10, but supraspl said that they are not enough efficient.
If you have any advice, I'll take it!
Thanks and have a good day
What kind of cob you would use for a vegg pannel with a hlg-185-...? I was on the Vero10, but supraspl said that they are not enough efficient.
If you have any advice, I'll take it!
Thanks and have a good day
Hes right, my fixture is pretty much maxing out the Vero 10 at 42% efficiency at my max current on my driver, ie not dimmed (same efficiency as my old setup 3x CXA3070 AB @ 1400mA), and a bit higher efficiency when dimmed where I usually run it set at.
The new CXBs will outperform in efficiency in the higher bins and/or when ran at lower current will also increase efficiency even more.
Id just get some CXBs and be done with it if your looking for supreme efficiency. Use more quantity of small COBs for better light spread in short headroom situations, otherwise you can use less quantity of the big COBs at more height over the canopy to acheive similar coverage.
Anybody growing with heavenbright, the new boy on the block? It embraces DIY simplicity and function.
If I had not positioned myself to get to test new commercial panels it would be on my short list-
Also, I will be starting a new grow soon with a Transcendent Lighting D 200, a 230w panel based on Remote Phosphor ($999). RP was developed a couple years ago in Philips labs; also getting a new 220w 4 COB from Amare Technologies ($695)
If I had not positioned myself to get to test new commercial panels it would be on my short list-
Also, I will be starting a new grow soon with a Transcendent Lighting D 200, a 230w panel based on Remote Phosphor ($999). RP was developed a couple years ago in Philips labs; also getting a new 220w 4 COB from Amare Technologies ($695)
Three Berries
Active member
First post but here is my homemade 100w LED. Not in use yet but I intend to have two of these and 4- 4' T8 grow lamps. Using an adjustable voltage 31-38 VDC 30A power supply.
I cut my heat sink in half. Need to go back to a 6" x 4.5" one. This is 3" x 4.5" and I am putting a 3" 120v fan on it as it runs way too hot. Maybe the smaller heat sink will be OK then.
100watt/2amp AC draw at 33vdc out.
I cut my heat sink in half. Need to go back to a 6" x 4.5" one. This is 3" x 4.5" and I am putting a 3" 120v fan on it as it runs way too hot. Maybe the smaller heat sink will be OK then.
100watt/2amp AC draw at 33vdc out.
tenthirty
Member
A laser temp gauge is your friend. Good work.
http://www.harborfreight.com/non-contact-infrared-thermometer-with-laser-targeting-60725.html
http://www.harborfreight.com/non-contact-infrared-thermometer-with-laser-targeting-60725.html
Three Berries
Active member
I've got one but just use the if it's too hot to hold it's too hot.
Got the 3" fan in and installed. Still a bit hot to hold. I will go back to the larger heat sink.
Got the 3" fan in and installed. Still a bit hot to hold. I will go back to the larger heat sink.
luvdemshrooms
Member
That's an absolutely ludicrous way of doing it.
Three Berries
Active member
I had to go to the foot long heat sink with a fan on it to maintain cooling. If I were to do it again I would use two 50w leds per one foot heatsink.
Currently have three 100w LEDs nested between 2-4' dual bulb T8 grow lamps. Appears very bright and the plants seem happy. My cheepo light meter show it to be in the 3-4 range or equal to a cloudy day.
Currently have three 100w LEDs nested between 2-4' dual bulb T8 grow lamps. Appears very bright and the plants seem happy. My cheepo light meter show it to be in the 3-4 range or equal to a cloudy day.
thaichimaster
New member
Hey guys, just a quick question. Can I wire 7 of these: http://www.leds.de/High-Power-LEDs/Nichia-High-Power-LEDs/Nichia-Chip-on-Board-Modul-Serie-24-weiss.html in parallel to this dimmable driver: http://www.leds.de/en/Accessories/Power-supplies/Meanwell-PCD-40-constant-current-source-dimmable.html
earthwyrms
Active member
have you seen this?
http://www.ebay.com/itm/10PCS-10-wa...-lights-NEW-/252120643478?hash=item3ab38fb796
full spectrum lights (each "sub" chip).
i think they are epileds/bridgelux chips, i don't know much about them. they cover 380nm~840nm.
http://stores.ebay.com/tiaochongyi/_i.html?_nkw=full+spectrum&submit=Search&_sid=1021205250
i got 50 3W on star PCB (aluminum base) for supplementing a 100W 7 band full spectrum led light
(individual wavelengths)(up to 87.5W [25V 3.5A] because the reds use lower power and some other leds run lower. i use 24V 3.5A, 84W)
http://www.ebay.com/itm/251970378009?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
after reading post #271 from CannaBuilding
https://www.icmag.com/ic/showthread.php?t=211911&page=19
i am also thinking about micro sativas, grin, and getting the pure 730nm to run all night if i get the right affirmations back about it. far red use is still puzzling me.
the 10W and ''full spectrum" specifications are,
''Specifications:
Power : 10W
Led Chip : 10 pcs epileds 1W Chip
Chip brand: epileds
Holder:high quality red copper holder
Wireure 1.2mm gold wire
Current: 900mA
Voltage: 9V-12V
Color ratio:full spectrum 380nm-840nm
Lifespan:50000h''
they have 3W chips which seem to be actaul 3watters and not 3x1watters. i read 3W chips last better than 1W (and 5W somewhere else); however, that was from a flashlight forum from years ago and the hour ratings of these 10W (9x1W) chips is listed the same as the 3W chips.
i got 50 of those and use the search buttons for drivers (making sure to read all specifications even if it is a similar watt.
heres what i found.
the 50pcs with PCB are (all, as of now) $19.40
http://www.ebay.com/itm/50pc-3W-ful...mm-star-pcb-/262003589843?hash=item3d00a182d3
they have these specifications
''Specifications:
Power:3W
Voltage:3.2-3.6V
Current:700mA
Color:full spectrum
Wavelength:380nm~840nm
Chip Brand:Bridgelux
Lifespan:50000h lifespan
Warranty:3 years
lighting angle:120~140 degree''
to drive 10 of them in series, the 20W driver can work
http://www.ebay.com/itm/261998095375
and has the specifications
''20W Driver
Driving power: 20w
model:10 series 2 in parallel
Input Voltage: 85V~265V
Output Voltage: 30-34V
Current :700mA
Efficiency > 88%
Power Factor >0.98
Operating Temperature : -20~80''
that will drive the 3.2V-3.4V 700mA at 3.0V-3.4V 700mA
they are now $4.20 lol, so for now overlooking shipping 50 LEDs need 5 drivers so 4.20*5 + 19.50 = $40.50 for the light aspect ("150W'' [30V*.7A*5=105W, 34V*.7A*5= 119W]"dimmable" kind of (lol))
however, now they sell 10 3W chips with a driver for $7.32
http://www.ebay.com/itm/10X-3W-Plan...0x3w-driver-/252146968115?hash=item3ab5216633
5*7.32=$36.6
a little cheaper and a sealed driver.
the driver has these specifications,
"
led driver:
Working temperature: -20-80 Deg
Input Voltage: AC85V ~ 265V 50 / 60HZ
Output Voltage: DC18V ~ 36V
Output Current: 600mA
TC: 75 degree (MAX)
TA: 50 degree (MAX)
Size: (L) 47mm * (W) 20mm * (H) 15mm
Usage: Used for the 6 ~ 10pcs 3W LED Light"
so looking at this the voltage has a wide swing and the current is 100mA lower than the chip specs. assuming it only ran high side, that is 36V*.6A*5= 108W, low side being 18V*.6A*5= 54W.
i don't know, the seller would have to be asked about it.
the 10W chips can be bought with 12V DC or "mains" AC 85V-265V, 50Hz/60Hz
http://www.ebay.com/itm/10w-Constan...p-380-840nm-/262047375470?hash=item3d033da06e
http://www.ebay.com/itm/10w-Constan...0-840nm-5PC-/252090279757?hash=item3ab1c0674d
heres IP67 dust and waterproof drivers with chips
http://www.ebay.com/itm/LED-Grow-Ch...rproof-/262091063276?var=&hash=item8296303386
" LED Driver For 3x3W:
Input Voltage: AC 85V-265V, 50Hz/60Hz
Output Voltage: 6V-12VDC
Output Current: 900mA ±5%
Case Material: Aluminum
Waterproof Rating: IP67
Dimensions: 43x25x20mm
Led Chip :9 pcs epileds 1W Chip
Chip brand: epileds
Holder:high quality red copper holder
Wireure 1.2mm gold wire
Current:900mA-1A
Voltage:9-11V
Color ratio:full spectrum 380nm-840nm
Lifespan:50000h
Application:All stage of plant
LED Driver For 20W:
Input Voltage: AC 85V-265V, 50Hz/60Hz
Output Voltage: 15V-34VDC
Output Current: 650mA ±5%
Case Material: Aluminum
Waterproof Rating: IP67
Dimensions: 65x25x20mm
Led Chip : 20 pcs epileds 1W Chip
Chip brand: epileds
Holder:high quality red copper holder
Wireure 1.2mm gold wire
Current: 700mA
Voltage: 30V-36V
Color ratio:full spectrum 380nm-840nm
Lifespan:50000h
Application:All stage of plant
LED Driver For 30W:
Input Voltage: AC 85V-265V, 50Hz/60Hz
Output Voltage: 18V-40VDC
Output Current: 900mA ±5%
Case Material: Aluminum
Waterproof Rating: IP67
Dimensions: 80x32x25mm
Led Chip : 30 pcs epileds 1W Chip
Chip brand: epileds
Holder:high quality red copper holder
Wireure 1.2mm gold wire
Current: 900mA-1A
Voltage: 30V-36V
Color ratio:full spectrum 380nm-840nm
Lifespan:50000h
Application:All stage of plant
LED Driver For 50W:
Input Voltage: AC 85V-265V, 50Hz/60Hz
Output Voltage: 15V-34VDC
Output Current: 1500mA ±5%
Case Material: Aluminum
Waterproof Rating: IP67
Dimensions: 97x37x28mm
Led Chip : 50 pcs epileds 1W Chip
Chip brand: epileds
Holder:high quality red copper holder
Wireure 1.2mm gold wire
Current: 1.5A
Voltage: 30V-36V
Color ratio:full spectrum 380nm-840nm
Lifespan:50000h
Application:All stage of plant
LED Driver For 100W:
Input Voltage: AC 85V-265V, 50Hz/60Hz
Output Voltage: 18V-34VDC
Output Current: 3000mA ±5%
Case Material: Aluminum
Waterproof Rating: IP67
Dimensions: 120x70x39mm
Led Chip :100 pcs epileds 1W Chip
Chip brand: epileds
Holder:high quality red copper holder
Wireure 1.2mm gold wire
Current: 3A
Voltage: 30V-36V
Color ratio:full spectrum 380nm-840nm
Lifespan:50000h
Application:All stage of plant
"
if you want to power it (the 10W [3x3W] in this case) with uninsulated, regular chip board power supply, this one fits the specifications,
"10W Driver
Driving power: 10w
model: 3 series 3 in parallel
Input Voltage: 85V~265V
Output Voltage: 9-12V
Current:900mA
Efficiency > 88%
Power Factor >0.98
Operating Temperature: -20~80
Size (L * W * H): 41 mm * 21mm * 16 mm"
http://www.ebay.com/itm/3W-100W-Hig...p-Lamp-/251954753713?var=&hash=item803fa0856f
so, at $2.10, 10 is $21, plus the 10pcs 10W(3x3W) chip (1st link) that is $31.35 = $52.35
the $5.63 10W chip with the IP67 rated supply is then $56.3 and probably the safer choice.
unfortunately, the power supply (the barebones is listed, the IP67 isn't) has an efficiency of over 88%, which while still great, is not high 90s, so anyone who knows of good power supplies could help here.
note: anywhere the orange faced "full spectrum" 10W LED specifications reads "Voltage:30-36V'' it is a typo and is ''Voltage:9-12V''. i asked the seller.
i'm still looking for a good source of heatsinks for passive cooling that can be also fan vented.
post #871 by REALSTYLES, in this thread page 59,
, those heatsinks look heavy duty, please share the source.
i may get a thread tapping set from harbor freight in the future (http://www.harborfreight.com/hand-tools/tap-die.html), now i may be able to borrow some.
i also wan't to mention an idea of using the 3W chips on individual tiny heatsinks, wired with sufficient wire along silicone coated garden wire (for adjusting the light positions)
(this stuff http://www.ebay.com/itm/12-Ft-Rubbe...192239?hash=item5d46e2442f:g:oxEAAOxyXDhSojlJ)
like an octopus, could run arrays of 10 separate adjustable 3W full spectrum LEDs, right up on leaves, under the canopy and anywhere else. if tinkered with, the application of the 3W chips seem like they wont heatstress the plants. the bulk heatsinks seem to be the problem,
this is the best i found yet http://www.ebay.com/itm/5pcs-36x22m...y-Heat-Sink-for-1W-3W-LED-Black-/181507023614
$5.89 for 5
so $11.78 for 10
$58.90 for 50
i have not found a cheaper way to build experiments yet
***also, sort of unrelated***, for the micro people, orbis stackpaks seem perfect for cabinet building, being able to be stacked as they grow. with the middle parts being hollowed out by cutting out the bottom. the base could be left normal and the head have the lights built in, like blue adept's stealth rubbermaid bins. more sturdy and the light could be raised with the plant. the filler crated could even have led chips built on their sides so the plants could get even light, especially with flat walls. unfortunately the bins are at least ~$20 each for 9 inch tall, 11x15inch models. i haven't seen anything else of as high quality yet though, which is especially important to me. a well built box could last lifetimes, it's thick HDPE and would be easy to put in closets or hide in corners and probably more durable than any growtent. it may even support mirrors in it as it it thick enough to make notch holders and adhesive the back before screwing in, to reduce movement. theoretically, every flat panel could be legitimately mirrored. fractures might be held in place by the epoxy. being solid and sturdy, there would be no flexing or hot spots. maybe only black leak seal paint and then white latex. there is retroreflective glass beads on aibaba that might be good to coat with, (at least the ceiling) although i don't know. i think there may be an effect when doing micro; because,
in a box with an area(volume) (that can hold so many plants) and walls that have area; the amount of surface area (walls, reflective surfaces) is greater in comparison to room volume
(plant area, maybe leaf surface area)
, the smaller the box/room gets. like a catalyst or putting sand in water to help it boil instead of a rock. i don't know which direction; however, i think going smaller might effect it better, taking into account a sliding factor/intersecting point of where a plant/strain will itself fill out enough and not waste space on a non budded stem or something. (i don't know how to describe it)
in a larger room or anywhere, the 3Watt LED octopi (octopuses) might help out in a similar manner (the only possible downsides i can think of being the black heatsinks absorbing some light and there needing to be some floor to ceiling heat ventilation or something for accumulated or localized heat).
http://www.ebay.com/itm/10PCS-10-wa...-lights-NEW-/252120643478?hash=item3ab38fb796
full spectrum lights (each "sub" chip).
i think they are epileds/bridgelux chips, i don't know much about them. they cover 380nm~840nm.
http://stores.ebay.com/tiaochongyi/_i.html?_nkw=full+spectrum&submit=Search&_sid=1021205250
i got 50 3W on star PCB (aluminum base) for supplementing a 100W 7 band full spectrum led light
(individual wavelengths)(up to 87.5W [25V 3.5A] because the reds use lower power and some other leds run lower. i use 24V 3.5A, 84W)
http://www.ebay.com/itm/251970378009?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
after reading post #271 from CannaBuilding
https://www.icmag.com/ic/showthread.php?t=211911&page=19
i am also thinking about micro sativas, grin, and getting the pure 730nm to run all night if i get the right affirmations back about it. far red use is still puzzling me.
the 10W and ''full spectrum" specifications are,
''Specifications:
Power : 10W
Led Chip : 10 pcs epileds 1W Chip
Chip brand: epileds
Holder:high quality red copper holder
Wire
ure 1.2mm gold wireCurrent: 900mA
Voltage: 9V-12V
Color ratio:full spectrum 380nm-840nm
Lifespan:50000h''
they have 3W chips which seem to be actaul 3watters and not 3x1watters. i read 3W chips last better than 1W (and 5W somewhere else); however, that was from a flashlight forum from years ago and the hour ratings of these 10W (9x1W) chips is listed the same as the 3W chips.
i got 50 of those and use the search buttons for drivers (making sure to read all specifications even if it is a similar watt.
heres what i found.
the 50pcs with PCB are (all, as of now) $19.40
http://www.ebay.com/itm/50pc-3W-ful...mm-star-pcb-/262003589843?hash=item3d00a182d3
they have these specifications
''Specifications:
Power:3W
Voltage:3.2-3.6V
Current:700mA
Color:full spectrum
Wavelength:380nm~840nm
Chip Brand:Bridgelux
Lifespan:50000h lifespan
Warranty:3 years
lighting angle:120~140 degree''
to drive 10 of them in series, the 20W driver can work
http://www.ebay.com/itm/261998095375
and has the specifications
''20W Driver
Driving power: 20w
model:10 series 2 in parallel
Input Voltage: 85V~265V
Output Voltage: 30-34V
Current :700mA
Efficiency > 88%
Power Factor >0.98
Operating Temperature : -20~80''
that will drive the 3.2V-3.4V 700mA at 3.0V-3.4V 700mA
they are now $4.20 lol, so for now overlooking shipping 50 LEDs need 5 drivers so 4.20*5 + 19.50 = $40.50 for the light aspect ("150W'' [30V*.7A*5=105W, 34V*.7A*5= 119W]"dimmable" kind of (lol))
however, now they sell 10 3W chips with a driver for $7.32
http://www.ebay.com/itm/10X-3W-Plan...0x3w-driver-/252146968115?hash=item3ab5216633
5*7.32=$36.6
a little cheaper and a sealed driver.
the driver has these specifications,
"
led driver:
Working temperature: -20-80 Deg
Input Voltage: AC85V ~ 265V 50 / 60HZ
Output Voltage: DC18V ~ 36V
Output Current: 600mA
TC: 75 degree (MAX)
TA: 50 degree (MAX)
Size: (L) 47mm * (W) 20mm * (H) 15mm
Usage: Used for the 6 ~ 10pcs 3W LED Light"
so looking at this the voltage has a wide swing and the current is 100mA lower than the chip specs. assuming it only ran high side, that is 36V*.6A*5= 108W, low side being 18V*.6A*5= 54W.
i don't know, the seller would have to be asked about it.
the 10W chips can be bought with 12V DC or "mains" AC 85V-265V, 50Hz/60Hz
http://www.ebay.com/itm/10w-Constan...p-380-840nm-/262047375470?hash=item3d033da06e
http://www.ebay.com/itm/10w-Constan...0-840nm-5PC-/252090279757?hash=item3ab1c0674d
heres IP67 dust and waterproof drivers with chips
http://www.ebay.com/itm/LED-Grow-Ch...rproof-/262091063276?var=&hash=item8296303386
" LED Driver For 3x3W:
Input Voltage: AC 85V-265V, 50Hz/60Hz
Output Voltage: 6V-12VDC
Output Current: 900mA ±5%
Case Material: Aluminum
Waterproof Rating: IP67
Dimensions: 43x25x20mm
Led Chip :9 pcs epileds 1W Chip
Chip brand: epileds
Holder:high quality red copper holder
Wire
ure 1.2mm gold wireCurrent:900mA-1A
Voltage:9-11V
Color ratio:full spectrum 380nm-840nm
Lifespan:50000h
Application:All stage of plant
LED Driver For 20W:
Input Voltage: AC 85V-265V, 50Hz/60Hz
Output Voltage: 15V-34VDC
Output Current: 650mA ±5%
Case Material: Aluminum
Waterproof Rating: IP67
Dimensions: 65x25x20mm
Led Chip : 20 pcs epileds 1W Chip
Chip brand: epileds
Holder:high quality red copper holder
Wire
ure 1.2mm gold wireCurrent: 700mA
Voltage: 30V-36V
Color ratio:full spectrum 380nm-840nm
Lifespan:50000h
Application:All stage of plant
LED Driver For 30W:
Input Voltage: AC 85V-265V, 50Hz/60Hz
Output Voltage: 18V-40VDC
Output Current: 900mA ±5%
Case Material: Aluminum
Waterproof Rating: IP67
Dimensions: 80x32x25mm
Led Chip : 30 pcs epileds 1W Chip
Chip brand: epileds
Holder:high quality red copper holder
Wire
ure 1.2mm gold wireCurrent: 900mA-1A
Voltage: 30V-36V
Color ratio:full spectrum 380nm-840nm
Lifespan:50000h
Application:All stage of plant
LED Driver For 50W:
Input Voltage: AC 85V-265V, 50Hz/60Hz
Output Voltage: 15V-34VDC
Output Current: 1500mA ±5%
Case Material: Aluminum
Waterproof Rating: IP67
Dimensions: 97x37x28mm
Led Chip : 50 pcs epileds 1W Chip
Chip brand: epileds
Holder:high quality red copper holder
Wire
ure 1.2mm gold wireCurrent: 1.5A
Voltage: 30V-36V
Color ratio:full spectrum 380nm-840nm
Lifespan:50000h
Application:All stage of plant
LED Driver For 100W:
Input Voltage: AC 85V-265V, 50Hz/60Hz
Output Voltage: 18V-34VDC
Output Current: 3000mA ±5%
Case Material: Aluminum
Waterproof Rating: IP67
Dimensions: 120x70x39mm
Led Chip :100 pcs epileds 1W Chip
Chip brand: epileds
Holder:high quality red copper holder
Wire
ure 1.2mm gold wireCurrent: 3A
Voltage: 30V-36V
Color ratio:full spectrum 380nm-840nm
Lifespan:50000h
Application:All stage of plant
"
if you want to power it (the 10W [3x3W] in this case) with uninsulated, regular chip board power supply, this one fits the specifications,
"10W Driver
Driving power: 10w
model: 3 series 3 in parallel
Input Voltage: 85V~265V
Output Voltage: 9-12V
Current:900mA
Efficiency > 88%
Power Factor >0.98
Operating Temperature: -20~80
Size (L * W * H): 41 mm * 21mm * 16 mm"
http://www.ebay.com/itm/3W-100W-Hig...p-Lamp-/251954753713?var=&hash=item803fa0856f
so, at $2.10, 10 is $21, plus the 10pcs 10W(3x3W) chip (1st link) that is $31.35 = $52.35
the $5.63 10W chip with the IP67 rated supply is then $56.3 and probably the safer choice.
unfortunately, the power supply (the barebones is listed, the IP67 isn't) has an efficiency of over 88%, which while still great, is not high 90s, so anyone who knows of good power supplies could help here.
note: anywhere the orange faced "full spectrum" 10W LED specifications reads "Voltage:30-36V'' it is a typo and is ''Voltage:9-12V''. i asked the seller.
i'm still looking for a good source of heatsinks for passive cooling that can be also fan vented.
post #871 by REALSTYLES, in this thread page 59,
, those heatsinks look heavy duty, please share the source.
i may get a thread tapping set from harbor freight in the future (http://www.harborfreight.com/hand-tools/tap-die.html), now i may be able to borrow some.
i also wan't to mention an idea of using the 3W chips on individual tiny heatsinks, wired with sufficient wire along silicone coated garden wire (for adjusting the light positions)
(this stuff http://www.ebay.com/itm/12-Ft-Rubbe...192239?hash=item5d46e2442f:g:oxEAAOxyXDhSojlJ)
like an octopus, could run arrays of 10 separate adjustable 3W full spectrum LEDs, right up on leaves, under the canopy and anywhere else. if tinkered with, the application of the 3W chips seem like they wont heatstress the plants. the bulk heatsinks seem to be the problem,
this is the best i found yet http://www.ebay.com/itm/5pcs-36x22m...y-Heat-Sink-for-1W-3W-LED-Black-/181507023614
$5.89 for 5
so $11.78 for 10
$58.90 for 50
i have not found a cheaper way to build experiments yet
***also, sort of unrelated***, for the micro people, orbis stackpaks seem perfect for cabinet building, being able to be stacked as they grow. with the middle parts being hollowed out by cutting out the bottom. the base could be left normal and the head have the lights built in, like blue adept's stealth rubbermaid bins. more sturdy and the light could be raised with the plant. the filler crated could even have led chips built on their sides so the plants could get even light, especially with flat walls. unfortunately the bins are at least ~$20 each for 9 inch tall, 11x15inch models. i haven't seen anything else of as high quality yet though, which is especially important to me. a well built box could last lifetimes, it's thick HDPE and would be easy to put in closets or hide in corners and probably more durable than any growtent. it may even support mirrors in it as it it thick enough to make notch holders and adhesive the back before screwing in, to reduce movement. theoretically, every flat panel could be legitimately mirrored. fractures might be held in place by the epoxy. being solid and sturdy, there would be no flexing or hot spots. maybe only black leak seal paint and then white latex. there is retroreflective glass beads on aibaba that might be good to coat with, (at least the ceiling) although i don't know. i think there may be an effect when doing micro; because,
in a box with an area(volume) (that can hold so many plants) and walls that have area; the amount of surface area (walls, reflective surfaces) is greater in comparison to room volume
(plant area, maybe leaf surface area)
, the smaller the box/room gets. like a catalyst or putting sand in water to help it boil instead of a rock. i don't know which direction; however, i think going smaller might effect it better, taking into account a sliding factor/intersecting point of where a plant/strain will itself fill out enough and not waste space on a non budded stem or something. (i don't know how to describe it)
in a larger room or anywhere, the 3Watt LED octopi (octopuses) might help out in a similar manner (the only possible downsides i can think of being the black heatsinks absorbing some light and there needing to be some floor to ceiling heat ventilation or something for accumulated or localized heat).
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I'm gonna try to catch up. Reading a few pages of this thread, and my braids feel a little tighter lol. Makes me feel like I made a bad choice in buying platinum leds? If I could build my own I would. I think watching you gentlemen, a lady maybe able to achieve this.. Keep up the the good work fellas.
Blessings
Blessings
AvidLerner
Member
I run (4) CXA3590, 72v, 135w 5000K, w/ HLG-185H-C700B and I get 50W per CoB or 200W max output with a PPFD of around 1200, and 50W/SF, dimmable to 23W/SF. works fine. I use a 13W blue/whie led panel for cloning and seedlings above the CoB area. peace. good luck
Hi!
Question to power 150pcs led chip 3w??
Specifications:
Power:3W
Voltage:3.2-3.6V
Current:700mA
Color:full spectrum
Wavelength:380nm~840nm
Chip Brand:Bridgelux
Lifespan:50000h lifespan
Warranty:3 years
lighting angle:120~140 degree
I want to run them on 500mA, so what is the cheapest solution?
Question to power 150pcs led chip 3w??
Specifications:
Power:3W
Voltage:3.2-3.6V
Current:700mA
Color:full spectrum
Wavelength:380nm~840nm
Chip Brand:Bridgelux
Lifespan:50000h lifespan
Warranty:3 years
lighting angle:120~140 degree
I want to run them on 500mA, so what is the cheapest solution?
Hello sin. Have you compared the prices of the hardware and the time it takes to make the 3W leds panel? You may get better value from using cobs, and it will be less work and less parts to install.
If you want to power those, you need more than one constant current drivers that put out 500mA at a voltage range that will power all the leds you put in a series. Example: A 100V 500mA driver will power ~ 28-30 of those leds at 500mA each. Don't think you will find a driver that powers all those leds in a series circuit, cause the voltage would be too big. You could do series in paralel but then you need to use resistors to balance the load on all series.
If you want to power those, you need more than one constant current drivers that put out 500mA at a voltage range that will power all the leds you put in a series. Example: A 100V 500mA driver will power ~ 28-30 of those leds at 500mA each. Don't think you will find a driver that powers all those leds in a series circuit, cause the voltage would be too big. You could do series in paralel but then you need to use resistors to balance the load on all series.
firetech89
Active member
In need of a LED guru
In need of a LED guru
Hi all,
So I want to try and decrease the amount of power I'm using with my 250 hps. I have a flower cab that is 3'x2'x4' and the 250 is working but I want to improve. Would like to lower watts a little while creating more sources of light.. sky effect over just a single lamp. Would like to know what's the newest and greatest products available cost should be ano issue under a few hundred bucks. Thanks in advance for anyone who helps me along.
In need of a LED guru
Hi all,
So I want to try and decrease the amount of power I'm using with my 250 hps. I have a flower cab that is 3'x2'x4' and the 250 is working but I want to improve. Would like to lower watts a little while creating more sources of light.. sky effect over just a single lamp. Would like to know what's the newest and greatest products available cost should be ano issue under a few hundred bucks. Thanks in advance for anyone who helps me along.
Roasty McToasty
Member
Cree cxb3590's are the best. Check out my sig and Dion's DIY threads.
