DankaDank
Well-Known Member
cutandroll
Why do some guys wats to still use mono led with cobs?
- Thread starter REALSTYLES
- Start date
febisfebi
Well-Known Member
Thanks @DankaDank
Anyone have experience dealing with http://timbergrowlights.com/ ? They have similar diy kits to cutter. I see they are a RIU advertiser, which is a good sign, but I would still like to hear from people who have ordered from them before.
Also I am curious what kind of optics if any I should be using on a fixture like this.
I am curious if the umol, µmols/m²s, and lumen results are different with lenses vs open vs reflectors. I would imagine the µmols/m²s at very least would be different with a focused beam, it would just cover less of that m² right?
From what I understand people sometimes use the reflectors for the cobs on the edge of their fixutres in order to minimize lighting the wall, and lenses, or just bare LES for the cobs in the middle. Since my light will be only 2 cob's wide and 3 long, and again its a 2'2"x5' closet. I assume all reflectors would focus the beam optimally, but I want to hear from you guys who are actually doing all this and have tried many if not all different setups. @Growmau5 @ttystikk @REALSTYLES perhaps some of you could help with this? I am working on getting through hundreds of pages of posts from you guys, and I am learning more and more all the time, but it is very time consuming, something I am pretty limited on right now unfortunately, and I would like to get this going sooner rather than later, so any help would be greatly appreciated.
Thanks guys
Also, what is the deal with these chips?
http://cutter.com.au/proddetail.php?prod=cut2886
they seem to somewhat resemble a cxb3590 3500k, but for only $27 $135w instead of 137? sounds a lot like the specs of the ones we pay almost $50 for. are they just a cheaper less efficient version of the cxb? or are they just cheaper?
Anyone have experience dealing with http://timbergrowlights.com/ ? They have similar diy kits to cutter. I see they are a RIU advertiser, which is a good sign, but I would still like to hear from people who have ordered from them before.
Also I am curious what kind of optics if any I should be using on a fixture like this.
I am curious if the umol, µmols/m²s, and lumen results are different with lenses vs open vs reflectors. I would imagine the µmols/m²s at very least would be different with a focused beam, it would just cover less of that m² right?
From what I understand people sometimes use the reflectors for the cobs on the edge of their fixutres in order to minimize lighting the wall, and lenses, or just bare LES for the cobs in the middle. Since my light will be only 2 cob's wide and 3 long, and again its a 2'2"x5' closet. I assume all reflectors would focus the beam optimally, but I want to hear from you guys who are actually doing all this and have tried many if not all different setups. @Growmau5 @ttystikk @REALSTYLES perhaps some of you could help with this? I am working on getting through hundreds of pages of posts from you guys, and I am learning more and more all the time, but it is very time consuming, something I am pretty limited on right now unfortunately, and I would like to get this going sooner rather than later, so any help would be greatly appreciated.
Thanks guys
Also, what is the deal with these chips?
http://cutter.com.au/proddetail.php?prod=cut2886
they seem to somewhat resemble a cxb3590 3500k, but for only $27 $135w instead of 137? sounds a lot like the specs of the ones we pay almost $50 for. are they just a cheaper less efficient version of the cxb? or are they just cheaper?
REALSTYLES
Well-Known Member
It's not a Cree CXB
febisfebi
Well-Known Member
i see. made by cutter I guess. Could you comment on how many 3590's would be appropriate for a 5'x2'2" space. I was going to make it 2 wide and 3 long, but the more I read, it seems like that might be overkill. Is it correct that these produce around 260 µmol at 50w peak efficiency? or is that with more current? Since I have about 11 square feet, at that rate it sounds like 4 staggered cob's could deliver the ~1000 µmols/m²s that we usually shoot for in flower, but I would like to get peak efficiency since that is a large reason I am doing this, so if I need 5 or 6 3590's i'm alright with that, but would rather not purchase extra equipment if its not needed for this.
JorgeGonzales
Well-Known Member
So...a square meter?
ttystikk
Well-Known Member
5 CXB3590 on a Meanwell 250W driver would fit very nicely. I'm not sure of the rest of the necessary driver's nomenclature, you want to run the COBs at 50W each.
welight
Well-Known Member
febisfebi
Well-Known Member
yes
Wouldnt that make it more like 1200 µmols/m²s? how man µmols does one diode put out at 50w?
Thanks, when will you have the kits in stock again? also, how long to ship to the west coast of USA?
Does anyone have experience with timbergrowlights.com for either a diy kit like cutter has, or a complete fixture? are they a reputable company?
REALSTYLES
Well-Known Member
I'm on the west coast
febisfebi
Well-Known Member
do you sell diy kits or something?
REALSTYLES
Well-Known Member
Yes I have diy kits. I'm waiting on the heat sinks. I'll have them next week
febisfebi
Well-Known Member
is there a is there a way I can review what packages you have in their prices, do you have a list or website?
REALSTYLES
Well-Known Member
http://artificialsunspecialty.mysimplestore.com/ what are you looking for? My site is still under construction so bare with me. You can Skype call me and we can talk.
febisfebi
Well-Known Member
I am looking for probably 5 cxb3590 with the heat sinks holders reflectors and adapters, and a 250 watt 94+ efficient driver to go with them. similar to the to the cutter kit or the 5 cob diy kit from timbergrowlights.com. If your heat sinks you are waiting for are the big wide,long ones that won't work for my setup, since I will be doing ducted Cooling, I need the individually raised heatsinks. So in that case I would get the heat sinks from computer Surplus store and save nearly a hundred bucks. are you willing are you willing to match the prices of cutter? Timber says they will match cutter price as well. Thanks
REALSTYLES
Well-Known Member
No they are the passive pin style heat sink so you'll have to buy angle aluminum. they are predrilled but will need to be tapped
welight
Well-Known Member
they will be back in stock next week, just waiting on delivery of more heatsinks and led drivers
Check out Growmau's Youtube site, our kits are shown here being assembled
https://www.youtube.com/channel/UCNNWfIeOXbcymb51qtR5XeQ?view_as=subscriber
Cheers
Mark
Last edited:
febisfebi
Well-Known Member
Those are the ones I'm looking for. tapping I can do. do you have Meanwell HLG-240H-C1400B? I have priced this out on cutter for everything for the 5 cob's reflectors solderless mount's and adapters for the reflectors, etc for $55 per set, so $275 and all I would need in addition is the 5 heat sinks for $112 and the meanwell driver for around $65 at other retailers, although cutter has similar priced ones. So $452, then 10% off comes to about $400. This is what I am shooting for. Could you do something like this? Also do you know when the heatsinks will arrive, early next week, or more like by the end? I can install skype to talk, if you want, but I will need your info.
Thanks
REALSTYLES
Well-Known Member
Yes on the drivers and my name is REALSTYLES on Skype
The Green Griffin
Well-Known Member
Hey BG! Not sure I understand this comment. Efficiency in converting electrical energy to light + heat is where LEDs shine (pun intended!). 1000 watts of LEDs at 61% efficiency produces 390 watts of heat, while an 1000 watts of HID at 35% produces 650 watts of heat. Even considering the conversion of some photons to heat, the difference is significant. Not sure about toasters, but since little of their output is light I would guess that the vast majority of wattage is heat. I must be missing something?