Airwalker16
Well-Known Member
EB series is the cheapest option for the most output right?
These all are 24V?
These all are 24V?
My brand new DIY Fixture.
- Thread starter Airwalker16
- Start date
Airwalker16
Well-Known Member
They're damn near 4 5/8" wide. So I could fit 4x 24mm wide strips or 5 x 18mm wide ones.
Airwalker16
Well-Known Member
Hell, it might even be best to use 3 double rows. Even though they get hot. That's what the heatsink is for, right?
Major Blazer
Well-Known Member
Yo I was speaking to my experience with the double row F-series in 2ft running just over nominal (1400) on a 2" heatsink
I have no experience with the H-Influx but they have 64 diodes in the 2 row 1' where the 1ft f series (1 row) has 72 so it's possible that the H Influx don't have the same issue.
Airwalker16
Well-Known Member
Well I reckon I'll throw 3 on the heatsinks posted above, and have 6 rows of diodes rather than 4-5 single strips.
Isawthelight
Well-Known Member
Your strips will have hot spots due to drill holes. Single row led strips is highly recommended. We don't need another "burned out LED thread" here
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Airwalker16
Well-Known Member
I think two Veros is a better choice.Your strips will have hot spots due to drill holes. Single row led strips is highly recommended. We don't need another "burned out LED thread" here
whytewidow
Well-Known Member
Boooooooo..... lol
whytewidow
Well-Known Member
I ripped apart a mars hydro 192 reflector and pulled the heatsinks, fans, drivers, switches. Kept everything except the junk led panels actually. But I used the heatsinks and used the strips from a 100w corncob led bulb. Desoldered it. And then put thermal tape on the back of the strips. Mounted them to a sheet of alum. Then mounted the heatsinks on the back. Used the same driver from bulb. 12k lumen in its 360° shape, in a reflector light. Laid all out flat. I'm getting just over 25k lumen on a cheap lumen meter. And it had fans in it base of the corn cob bulb. So the driver has extra 12vdc out. So I mounted one of the mars fans on the top center.... works great for vegging babies. And clones. Its bright as shit.
I pulled apart another 100w cob light. And was gonna put them on the sheet too. But it was gonna be like if I remember right 9700+ diodes on a 10x20 sheet. With 200watts. Of 6000k and 6500k. But I only used the 6000k ones. Cant let those baby sinks go to waste ya kno.
I pulled apart another 100w cob light. And was gonna put them on the sheet too. But it was gonna be like if I remember right 9700+ diodes on a 10x20 sheet. With 200watts. Of 6000k and 6500k. But I only used the 6000k ones. Cant let those baby sinks go to waste ya kno.
Airwalker16
Well-Known Member
Wow that's such a smart idea. The drivers so small too it makes them so adaptable. I wish I had a few of those corn cob bulbs lying around here.
Airwalker16
Well-Known Member
Does it get pretty hot? Those diodes aren't very efficient obviously.. nor is the driver.
whytewidow
Well-Known Member
Doesnt get hot at all. Barely warm.
Edit: in the bulb shape they got pretty warm. But laid out flat like that and spread apart. You can honestly lay the side of your face against the diodes. I dont think you can use the word efficient anywhere these diodes lol.
Airwalker16
Well-Known Member
Well in all honesty right, Vero's would be a better option? I'd only be able to fit Max 3 h influx double rows at 3500-4000 lumens per strip giving me 10.5-12K.
One vero alone at 50watts produces close to 15,000 lumens not to mention having 2 for close to 30,000.
ChiefRunningPhist
Well-Known Member
I tested them at 6.1v individually and at 12× that right off the driver, 74.2v. The draw was .38 amps (meter wired in series between board and driver) and I didn't break an LED off the board to test individual LED current.
**
That means they are wired in 3 sets of 12 series, right? They can't be wired any other way if individual voltage is 12× that of total voltage, right? Meaning the .38A is split 3 ways???
Having hard time finding 72v power supplies, I'm thinking about wiring (2) 36v supplies in series? See any issues with that?
Or was thinking about using a protoboard or bus bar or terminal block and wiring all the built in drivers in parallel together on one board with a heat sink , like 1 big driver to run all the PCB lights I took them from? I can control heat better if I put the drivers in a different place. It would be 16 of these in a row on one board (w/heatsink) for a total of 480w??...
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Randomblame
Well-Known Member
I don't believe that! Samsung says, 65°C at nom. current and if you mount them on heatsinks or c-channels they run ~50°C at nom. current. EBgen2 can run completely without heatsinks also over driven/above nom. current.
My 2ft. F-strips run with 450mA(50mA per Diode) currently and heatsink temps stabilize at 5-6°C over ambient. Even if I run them at 1050mA the c-channels stay below 50°C. So also when you cover the whole surface with 1ft DR F-strips and run them at ~1250mA the heatsinks should stay cool enough to touch them. An HLG-120H-24A or B has 5Amps and with 4 parallel strips each strip would get a little more than 1250mA.
Randomblame
Well-Known Member
You are talking about the single row 2footers mounted on c-channels, right? It depends on how hard you run them. 1400mA is well above nom. current and therefor they need more cooling. Pretty sure if they would run with only 1120mA they would stay much cooler(below 65°C). H-influx is btw a little more efficient which means they produce even less heat and slightly more light compared to F-strips.
Major Blazer
Well-Known Member
Yo, they are on 2" wide heatsinks from hsUSA with TIM. I read the data sheets - yeah 1120mA is the typ with 1800 as max - didn't think 1400mA was "well above" considering it was closer to nom than max, but this is my 2nd strip build and the last one was under-driven so it seems that I was wrong. What don't you believe?
whytewidow
Well-Known Member
Yeah I'm running f562b above 1120mA and have been for awhile. I'm pushing 13.33A of 13.34A available from a hlg-320h-24b across 10 strips. 1333mA per strip for 31.92w per strip. And they are super cool. Could handle another 400mA easily.
Randomblame
Well-Known Member
Yeah, 200mA is the maximum for LM561c but they are binned at 65mA and run with 125mA on F-strips at nom. current. With 1,4A the diodes run already with 156mA so from this POV you run them pretty hard/hot but with heatsinks they should not go above 50-55°C. My F-strips run with 450mA or 50mA per diode but I've 20 2ft single row strips and 8 CRI90 COB's for a small 9sft area running at 325w. There is simply no need to drive them harder. I would rather have twice as much room to drive them hard, lol!
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Major Blazer
Well-Known Member
Nice info - thank you @Randomblame . I'm going to go out and get an infrared thermometer this weekend to see how hot they are really getting.