<p>Disclosed is s a light emitting diode illumination device. The light emitting diode illumination device includes: a power supply circuit providing an input voltage with a ripple; an LED array which forms channels including light-emitting diodes and emits light in response to the input voltage; a constant current control circuit providing a current path for the LED array; a current sensing resistor which provides a sensing voltage in response to the current flowing through the current path; and a voltage sensing circuit which provides comparison voltages in a number corresponding to the channels for the constant current control circuit and adjusts the level of the comparison voltages in response to the change in the sensing voltage.</p>
