aedificator Posted July 17, 2015 Share Posted July 17, 2015 I need to power up an LED system that requires 32V-36V at 4.9A. I am having hard time to find the right driver; what I have found either fits the voltage (but not the current) or the current (but not the voltage). If any of you has a suggestion, would he point me to a possible solution? Link to comment
evilc66 Posted July 17, 2015 Share Posted July 17, 2015 Meanwell HLG-185H-42B will do it. It's only 4.4A max, but the next step up is 5.2A, but it drops the max voltage right to the threshold of your LED. The HLG-185H-42B is about $65 If you move up to the HLG-240H-48B, then you have 5A with a 24-48v range. Price steps up to about $75. What on earth are you powering that requires 4.9A? Link to comment
Matteo Posted July 20, 2015 Share Posted July 20, 2015 what leds are you using? Most use 48v don't they? Link to comment
evilc66 Posted July 20, 2015 Share Posted July 20, 2015 LEDs? No. Most drivers are kept under 48V to avoid additional certification for high voltage. LED themselves are 2.2-3.5v for discrete LEDs and higher for CoB arrays, but it varies. Link to comment
Matteo Posted July 20, 2015 Share Posted July 20, 2015 Well I use a Genesis 48v 300watt power supply for my LEDs and they are hooked up to LDD-700H drivers Link to comment
evilc66 Posted July 20, 2015 Share Posted July 20, 2015 Right, but the LEDs themselves aren't 48v. You are using a 48v power supply to power a string of a given size that contains LEDs that have a forward voltage of 2.2-3.4v, depending on the color and manufacturer. Your comment earlier made it sound like you thought that the LEDs themselves are 48v, which isn't true. I'm sure you know that, but I was clarifying for anyone else who was reading that may have been confused by that statement. Link to comment
Matteo Posted July 20, 2015 Share Posted July 20, 2015 Right, but the LEDs themselves aren't 48v. You are using a 48v power supply to power a string of a given size that contains LEDs that have a forward voltage of 2.2-3.4v, depending on the color and manufacturer. Your comment earlier made it sound like you thought that the LEDs themselves are 48v, which isn't true. I'm sure you know that, but I was clarifying for anyone else who was reading that may have been confused by that statement. Yeah I understand how LEDs are not 48v haha. Are you using a certain LED that is different the rest? Link to comment
evilc66 Posted July 21, 2015 Share Posted July 21, 2015 Me, no. But the OP is up to something. Link to comment
aedificator Posted July 22, 2015 Author Share Posted July 22, 2015 Thanks guys, it is for a new LED system that i have built up from extra parts that I had at home. I did not want to put too many beads in parallel (did not want to have a high current) and so I was looking for something affordable, which I ended up finding online (an HLG MeanWell driver). As always, thanks for your help! Link to comment
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