A method and illumination device are provided for interference-resistant compensation in light emitting diode (LED) devices. In one embodiment, the method includes monitoring a detection photocurrent within a lamp during multiple detection intervals interspersed with periods of illumination, applying a drive current sufficient to produce illumination to one of multiple emission LED elements within the lamp during a subsequent measurement interval, and monitoring a measurement photocurrent within the lamp while the drive current is applied. An embodiment of an illumination device comprising a lamp includes multiple emission LED elements, one or more photodetectors, and a lamp control circuit, where the lamp control circuit is adapted to perform steps of the method.