Measuring LED Voltage
I have quite a few "salvaged" LED's, none of which have I the slightest clue as to their voltage. I have attempted to measure them using the diode setting on my voltmeter with dubious/mixed/questionable results.
Although the measurements are momentary (the reading is barely of sufficient length to note), I can usually arrive at a value. Unfortunately, when I repeat the measurement on the same LED the reading is invariably different.
For example, I just measured the value of a random LED (green) and came up with the following: 1.3. 1.4, 1.8, 1.6. I've rounded the values to the nearest decimal point.
Are these values through voltage?
Are the differences between the readings significant or should I use the minimum when calculating resistor values?
I'll, no doubt, have a few more question later on.
I appreciate your elucidation on this matter...
Best to all,