An LED lamp includes at least one LED chip having an emission peak wavelength
of 400 nm to 490 nm, and a wavelength converting portion including a phosphor for
transforming the emission of the LED chip into light having a longer wavelength
than that of the emission. The LED lamp further includes a filtering member, of
which the spectral transmittance is adjusted so as to minimize color shifting even
if the amount of current supplied to the LED chip to make the LED chip produce
the emission has changed.
