DiY LEDs - How to Power Them
- Thread starter SupraSPL
- Start date
Dloomis514
Well-Known Member
you could build a cree 3070 at 3000K bin Z2 for that money
Nc87
Active Member
Or save just a little more and build two or three. All the little tools and supplies to build these add up over time. Once you have all that you can get the leds and drivers relatively inexpensive
Sent from my SAMSUNG-SM-G900A using Rollitup mobile app
indianajones
Well-Known Member
i built a bridgelux vero 29 for around $100.
the VERO 29 cob- $30
meanwell driver- $45
heat sink- $10
fan driver- $20 at radio shack
bridgelux vero 29- http://www.digikey.com/product-detail/en/BXRC-40E10K0-L-03/976-1148-ND/3913155
meanwell lpf 90-42 dimming- http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&productId=2140963&catalogId=10001&CID=GOOG&gclid=CjwKEAjwwo2iBRCurdSQy9y8xWcSJABrrLiSPQvRKxV6eHlbP7O9MqT8pB71m22OTGvcTcFVa-CqVhoC447w_wcB
arctic alpine 11 plus- http://www.amazon.com/ARCTIC-Alpine-11-Plus-Cooler/dp/B00606OHQQ
fan driver you can get at radio shack. the fan is rated for 12v DC, 250ma. i found a driver that does 12v @ 300mA for $20
only other things you need are connectors and a plug, you can solder
instead of buying connectors if you already have a solder kit. self tapping
screws work for mounting the LED to the heat sink, which comes with pre
applied thermal grease.
keysareme
Well-Known Member
Thank you for such an awesome post man. That's within my range, and how many watts does your led draw and how much output total? I'm pretty sure I could put together a light I would be happy about.
nogod_
Well-Known Member
You can scale this down but it will give you an idea what equipment youll need to get the job done:
https://www.rollitup.org/t/diy-led-grow-lights-with-cree-cxa3070-cobs-and-cpu-coolers.805681/
https://www.rollitup.org/t/diy-led-grow-lights-with-cree-cxa3070-cobs-and-cpu-coolers.805681/
zangtumtum
Well-Known Member
i'm study a new lamp with 6 CXA3070 Z4, I must set to output in total 400W,
66.6 Watt each, i think at 1.7 Amp.
I do not know what is best to do if a power supply for each set of 3, or use separate power supplies.
in any case, which power supply would you recommend in the two different situations?
66.6 Watt each, i think at 1.7 Amp.
I do not know what is best to do if a power supply for each set of 3, or use separate power supplies.
in any case, which power supply would you recommend in the two different situations?
zangtumtum
Well-Known Member
I have see this driver:
Meanwell HLG-240H-42
21 ~ 42V / 5.72A / 240.24W
it's possible to drive in series 3xCXA3070 Z4 and adjusted through internal potentiometer to run near 1.7A for each COB for max 200w in total?
Meanwell HLG-240H-42
21 ~ 42V / 5.72A / 240.24W
it's possible to drive in series 3xCXA3070 Z4 and adjusted through internal potentiometer to run near 1.7A for each COB for max 200w in total?
Last edited:
AquariusPanta
Well-Known Member
Separate power supplies would be the way to go imo. It may prove to be a cheaper alternative also.
churchhaze
Well-Known Member
when running in series, the voltages across the diodes add, but they will all have the same current flowing through them.
AquariusPanta
Well-Known Member
No, you would have to run them in parallel and that would be a bozo no no.
Series means that you add the voltage for each led.
I can verify this
churchhaze
Well-Known Member
it's always a good thing when kirchoffs laws still work. 
zangtumtum
Well-Known Member
but if I connect 3x3070 Z4 at one HLG-185H-C1400, I can at best make them go to 1.4A each therefore a maximum of 55.22W ? Is that right?
or is it possible that they could go a little more? my problem is always to go at 400W with 6x3070 with a reasonable solution for cabling and power supplies.
the lamp should be set to 400 even with a fixed internal adjustment
or is it possible that they could go a little more? my problem is always to go at 400W with 6x3070 with a reasonable solution for cabling and power supplies.
the lamp should be set to 400 even with a fixed internal adjustment
SupraSPL
Well-Known Member
They might go above 1400mA if you get the A version. When I tested the HLG-185H-C1050A, it put out a max of 1150mA. But when I tested the HLG-185H-C1050B it maxed out at 1050mA.
Anyway, if you used a pair of HLG-185H-C1400A and (6) CXA3070s, the COBS will dissipate about 310W at 1400mA
Anyway, if you used a pair of HLG-185H-C1400A and (6) CXA3070s, the COBS will dissipate about 310W at 1400mA
zangtumtum
Well-Known Member
ok...but the problem it's that the lamp must go 400W with 6x3070....no more....no less...
zangtumtum
Well-Known Member
what do you think about HLG-60-H-36 and CEN-60-36...
current and voltage adjust....the problem they are expensive...6 pieces for 1 lamp...
current and voltage adjust....the problem they are expensive...6 pieces for 1 lamp...
Attachments
zangtumtum
Well-Known Member
Thanks a lot SupraSPL...an other "adept"...for help and patient....
i need an economical solution but can work stable for a long time...
i need an economical solution but can work stable for a long time...
Last edited:
Greengenes707
Well-Known Member
Would people be into 4000K AD's??? I'm going to pick some up...but will go bigger if they are a wanted/needed item by enough people.