Audioguru stated that LED's are current driven but is that really true? I don't see how that's completely true.
If that was true, you'd be able to power an LED from just 1volt but you simply can not it's impossible, if you have 1v in a circuit and 1 ohm resistor, you'd have 1 amp going through the circuit, now if you place an LED in the circuit, you should get a pretty bright light and with 1 amp going through the LED it's going to go bang.. but yet, it does not, you need voltage to make it go pop not current.. so an LED is happy providing it gets the right voltage and you don't need a resistor at all if the correct voltage is given, although it's best to use a resistor to protect the LED.
If that was true, you'd be able to power an LED from just 1volt but you simply can not it's impossible, if you have 1v in a circuit and 1 ohm resistor, you'd have 1 amp going through the circuit, now if you place an LED in the circuit, you should get a pretty bright light and with 1 amp going through the LED it's going to go bang.. but yet, it does not, you need voltage to make it go pop not current.. so an LED is happy providing it gets the right voltage and you don't need a resistor at all if the correct voltage is given, although it's best to use a resistor to protect the LED.