Sydney
Quoted from Pin_Guy:Not to be argumentative; but, I have to disagree with this statement as you can drive an LED with a 5V forward voltage, powered by a 5V source for a very long time. I have some that have been running 24/7 for at least 5 years like that.
Interesting. What is the measured voltage drop across the LED? What is the measured forward current? One would suspect that the voltage source has appreciable internal resistance or that there are other relevant circuit elements (for example, two LEDs in series or an internal current limiting resisitor or an FET with significant on resistance).
