DiY LEDs - How to Power Them
- Thread starter SupraSPL
- Start date
Fastslappy
Well-Known Member
ThanX straight from horses mouth , bookmarked
Stay green
Well-Known Member
Hello all and would like to say thank you to the guys who share there knowledge on DIY cob building. I have been reading and watching videos and really enjoying the DIY tech talks.
I am going to start with a small build then keep adding. To start I have chosen the following due to what's available at the time. Just waiting on jerry to get back on a price.
4 cxb3590 top bin @ 3500k 72v
1 HLG-240H-C1050A:
Going from what I have read and using the Cree characterisation tool I think the driver should run them all. What I'm a little unsure about is that here in Australia we run at 240v.
Will it be ok for all 4. Thank you.
Edit. Math work out it will run 3. What about the 240v, is that an issue.
I am going to start with a small build then keep adding. To start I have chosen the following due to what's available at the time. Just waiting on jerry to get back on a price.
4 cxb3590 top bin @ 3500k 72v
1 HLG-240H-C1050A:
Going from what I have read and using the Cree characterisation tool I think the driver should run them all. What I'm a little unsure about is that here in Australia we run at 240v.
Will it be ok for all 4. Thank you.
Edit. Math work out it will run 3. What about the 240v, is that an issue.
Last edited:
I don't think there is a problem, but they won't emit the same light levels.
I was just about to ask about stranded wire, because yesterday I ran through the entire city to find solid core wire, which unfortunately doesnt exist. Luckily it was much easier to read these 116 pages, than to ask the question about whether I could use stranded wire. I should go for a wire that is approved to run about 300v, right? Im trying to get all the miscellaneous before the important parts get here, so I know it to be doable. Thanks a lot!
Fastslappy
Well-Known Member
Most of the heatsink & hardware will show today or monday(stranded wire here on Sunday Amazon) & should be rocking over plants in days after
Again ThanX alesh for the stranded Video
Again ThanX alesh for the stranded Video
nogod_
Well-Known Member
Fry's sells 18awg 300v solid core. It is not as flexible as stranded but a non issue if you pre-bend your wire and chamfer your thru-holes.
Home Depot/Lowes I've found to be pretty useless for the parts I need.
Home Depot/Lowes I've found to be pretty useless for the parts I need.
I was just about to ask about stranded wire, because yesterday I ran through the entire city to find solid core wire, which unfortunately doesnt exist. Luckily it was much easier to read these 116 pages, than to ask the question about whether I could use stranded wire. I should go for a wire that is approved to run about 300v, right? Im trying to get all the miscellaneous before the important parts get here, so I know it to be doable. Thanks a lot!
Fastslappy
Well-Known Member
or you over pay for what they got in stock & that is actually junk
sforza
Well-Known Member
Thanks PB!
After I posted my question and I thought about it, I came to the same conclusion, i.e. that the 72V COB would be twice as bright as each of the 36V COBs. Well, not twice as bright, due to lower efficiency, but brighter and put out more heat.
I may put the 72V in the middle of a bar and the two 36V on the ends. I have few MW drivers HG120 @ 1.05 AMP and 148 volts, so I can run four 36V or two 72V or one 72V and two 36V off each driver. I'll probably give it a try.
HydroDC
Well-Known Member
A pair of 120H-C1050 drivers will power your 4 COBs and their input voltage range is 90 ~ 305VAC. I'm sure you'll enjoy making and using your new light. Good luck on both.
sforza
Well-Known Member
Should be fine form what I see: Input Voltage: 90 VAC to 305 VAC. 240 is between 90 and 305 VAC.
I like to run the CBX3590 at 1.05 amps. I run four of them at 1.2 Amps and they are nice and bright. I think you will like your results. Jerry will get you your quote quickly. Chinese New Year might delay things a bit.
Stay green
Well-Known Member
REALSTYLES
Well-Known Member
I live around the corner from Fry's lol like 3 minutes car and 10 minutes bike lol
Mary's Confidant
Well-Known Member
What driver is suggested for 14 - CXB3070s? I'm wanting to run either 1050 or 1400, but I'm not sure there is a driver I can max out efficiency by maxing load. Should I just take away two of the LEDs so I can drive 6 per string?
alesh
Well-Known Member
HLG-240H-C1400 can run (5) CXB3070 @1400mA
HLG-185H-C1400 can run (4) CXB3070 @1400mA
HLG-240H-C1050 should be able to run (7) CXB3590 @1050mA (confirmation welcomed)
Mary's Confidant
Well-Known Member
Thanks for that. As I understand it, the CXB3590 and 3070 are both 36V COBs, so wouldn't the HLG-240H-C1050 also run 7 3070s? Or is there something I'm missing? That would be ideal, driving 7 per driver. but I can also run them hotter and pick up two 240H-C1400 and one 185H-C1400.
REALSTYLES
Well-Known Member
They are not the same the CXB3590 are a little different on efficiency that's why you can run 7
alesh
Well-Known Member
It has lower forward voltage at given current (1.05A).
kony brado
Well-Known Member
I was just about to ask about stranded wire, because yesterday I ran through the entire city to find solid core wire, which unfortunately doesnt exist. Luckily it was much easier to read these 116 pages, than to ask the question about whether I could use stranded wire. I should go for a wire that is approved to run about 300v, right? Im trying to get all the miscellaneous before the important parts get here, so I know it to be doable. Thanks a lot!
http://www.amazon.com/18AWG-Solid-3...F8&qid=1449933781&sr=8-13&keywords=18awg+300v