EEVblog Electronics Community Forum
Electronics => Beginners => Topic started by: Peteb on March 07, 2021, 11:24:18 am
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Hello, I purchased 5 of these LED lights all with a varying amount of LED boards inside them with the idea of linking them up together and keeping the lights on low in my lounge. Ideally, I would have one controller for all LEDs otherwise simply wiring them up separately will cause them to turn off/ on with the IR remote if it's not at the perfect angle. So what I would like to do is connect further boards together with JST connectors effectively extending the current design to more of the lights. The attached pictures will make more sense.
All I can discern from the largest light driver is that has a slightly different output but I’m not quite sure what it means and if anyone can shed light on it? The output is (25-50) X2W. Does this mean 50-100W? I mean that would make most sense considering the light draws around 80W on full power with the 60 LEDs.
With the other 4 lights there would be a max of 150W extra requirement.
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It is constant current driver, with 2x240mA output. Output voltage depends on number of LEDs in series and can be between 75-170V.
Each board has probably two separate strings of 6 LEDs connected in series. 6 LEDs * 5 boards * 3.2V LED forward voltage will give around 100V.
If you connect additional 5 boards from the second light, you will be already out of specified voltage range.
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Thank you, that's incredibly useful. So if I were to skip the idea of using all 5 lights and went for three of the smaller ones (they have between 2 and 3 LED boards, with each board having 12 LEDs on them) then what would my maximum be? I'm guess it'll be just under 9 boards, 8 to play it safe (170V / 3.2V / 6 (or 12 LEDs across the two outputs?)