Were you able to adjust the voltage so that you can run even a single strip on that hlg-185h-48aMy apologies, I guess I should have spelled it out. Someone else PM'd me and had attached 1 L09 to 1 HLG-185H-48A. I believe he inadvertently ran 1 strip @ 4A which isn't advisable (it was a short test I think). I'd run 4X L09 per hlg-185h-48a or 16 (4s4p) of the s02.
I use a 24V 3A rated power supply. I use it for my Aamsung strip and it runs at 1A. It does not run at 3A because strip wants more voltage for higher current and my Constant voltage drivers does not give more than 24.X V.@robincnn uses 48V laptop power supplies (constant voltage ac/dc adapters). I've always read that is bad due to possibility of thermal runaway, but I guess you can mitigate that by buying a power supply that is not over powered (max output can't damage the lights). He's got more experience in this area.
I don't have a great answer, but I believe you don't need a ton. For the two strips I mounted (22" or so), I tried to apply a thin line of TIM right behind the leds, and when I mounted it to the pan/sink, i pushed it around to thin out the paste before putting the screws in. I used up 1 complete tube (4g) of mx4 for the two strips. If I were mounting more, I'd definitely buy something in larger quantity than 4g tube. There's another thread with recommendations of TIM that come in larger quantities for reasonable prices.Do you need a ton of TIM to mount these strips to heatsinks? Or is the thermal contact less critical because of the much larger surface area compared to a COB? cheers
Couldn't hurt to use TIM though561B
55 -85 Tc 10000hrs 96.5 lumen% maintenance
104 Tc 10000hrs 85% lumen maintenance
I did not use any TIM
Used only screwed for the 22in board on heatsink.
Samsung made this recommendation
It is depending on your design but in most cases, it does not require thermal interface material in between the F-series module and the fixture.
LM561B for M-series -- found here:Does anybody know what actual LEDs are used? I swear I read that somewhere on Samsungs site, maybe it was a brochure. I'd like to see the spectrums and temperature vs efficiency charts. Might be able to do better than 50C test points.
Sorry those are all gen2 above, I didn't use model numbers because Samsung is not very consistent with naming. 4ft M-series was about all they seem to call them, for instance, but I will clarify above.LM561B for M-series -- found here:
http://www.samsung.com/global/business/business-images/led/file/product/lighting/201407/Data_Sheet_M552_series_Rev.1.7.pdf
yep - that pdf you referenced says they are lm561b+ (plus)Sorry those are all gen2 above, I didn't use model numbers because Samsung is not very consistent with naming. 4ft M-series was about all they seem to call them, for instance, but I will clarify above.
So, actually here:
http://www.samsung.com/global/business/business-images/led/file/product/lighting/201604/Data_Sheet_M562_Gen2_Rev.2.0.pdf
But neither have spectrum or much data outside of their test currents. At least gen2 has current vs efficiency data, but since we were talking about cooling, I thought it would be fun to see the temp vs efficiency charts.
I mean these are just individual leds strung together, I'm assuming the pertinent data is with their documentation.
Ah, I see it now under structure. I knew I saw it somewhere. Thanks! I didn't realize LM561B was the led, I thought it was the strip model. M561/M562...thought it was mm when Robin mentioned it. That was so confusing.yep - that pdf you referenced says they are lm561b+ (plus)
so
http://www.samsung.com/global/business/business-images/led/file/product/lighting/201506/Data_Sheet_LM561B_Plus_Rev.1.0.pdf
That's interesting to hear. I actually just received my Samsung Influx L09s just now. Having just run out of TIM I decided to try mount one on a heatsink with cable ties (really tightly held down) and hook it up to a COB string that had space left @1050mA. I ran it dimmed to about 500mA for a few minutes and I barely felt any heat at all. I ran it closer to 1050mA and I felt a little heat, but not much. I did not want to push it so I left the experiment there, but it's good to hear that you did the same and it runs fine.561B
55 -85 Tc 10000hrs 96.5 lumen% maintenance
104 Tc 10000hrs 85% lumen maintenance
I did not use any TIM
Used only screwed for the 22in board on heatsink.
Samsung made this recommendation
It is depending on your design but in most cases, it does not require thermal interface material in between the F-series module and the fixture.
Hmm...something seems off there. 42W seems like an awful lot for that...let's see.I just tried an L09 on a (non-dimmable) 1.4A COB string. The LED strip and the 22" HSUSA 2.09 inch heatsink with no TIM both got pretty hot after a few minutes and I lost my nerve. I guess there must be pretty good contact for the heatsink to get so hot.
I need to do this again and take some temp readings. It seems like this heatsink should be good for dissipating about 42W of heat, and I think the L09 should be around 30-35W (Anyone know how to get efficiency expressed as a percentage from lm/W?) at this current... but I am in no hurry to blow my shiny new LED strips. More testing needed.