To make the LEDs light with a substitute supply you will need to know the current required and the voltage required. Excess current capability will not hurt anything, but the voltage is important. So to be the most effective you need a regulated current power supply. But what you can find that will work is an adjustable regulated voltage supply and a series resistor. Cheaper and easier to find.Suppose you have a bad LED TV with its power supplies board damaged. And this board is no longer available for sales. So how should you choose another similar power supplies board to replace it. What specifications you need to look at?
Looking at the output pins labelled on the photo of power board you provided.
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by Jake Hertz