03-12-2018, 09:05 PM
200 LED string draws approx. 600mA according to the website. 100 LED strings are about 250mA, so 1000 LEDs will draw about 2.5 to 3Amps in total. If you're using the 24v 5Amp transformers to supply these circuits, the actual voltage will be above 24v. Transformer is rated at 24v when it is supplying 5Amps.
You could try taking the string down and laying it on a radiator for a few hours to see if it dries out any moisture. Another way of checking them is to identify the leg that has the duff LEDs on it and looking at each unlit LED to see if there's a slight 'lump' on the side just underneath the individual LED. If so, this will be the in-line resistor for that leg and if there's signs of overheating at that spot, then you know it's the resistor that's burned out.
When I use my 24v Transformer, I try to load it up to as close as I can to 5 Amps to ensure the voltage across my LEDs is 24v. More voltage equals more current, which will eventually burn out the resistors and/or LEDs themselves. On 'no load' the transformer kicks out over 30v.
Sorry if this reply gives you a bigger headache
Regards
Sandy
You could try taking the string down and laying it on a radiator for a few hours to see if it dries out any moisture. Another way of checking them is to identify the leg that has the duff LEDs on it and looking at each unlit LED to see if there's a slight 'lump' on the side just underneath the individual LED. If so, this will be the in-line resistor for that leg and if there's signs of overheating at that spot, then you know it's the resistor that's burned out.
When I use my 24v Transformer, I try to load it up to as close as I can to 5 Amps to ensure the voltage across my LEDs is 24v. More voltage equals more current, which will eventually burn out the resistors and/or LEDs themselves. On 'no load' the transformer kicks out over 30v.
Sorry if this reply gives you a bigger headache
Regards
Sandy