I have come across a circuit which uses four LEDs (yellow/orange) connected in parallel with a single 180Ω resistor to a 6V supply.
To my eye they have identical brightness. I would not have expected this to work so well. It is not an expensive item so they are not going to be using matched LEDs (and anyway it would be cheaper to use four resistors.
Is this as surprising as I think it is?
To my eye they have identical brightness. I would not have expected this to work so well. It is not an expensive item so they are not going to be using matched LEDs (and anyway it would be cheaper to use four resistors.
Is this as surprising as I think it is?