There is provided a lighting device for illuminating objects inside an
enclosure including a housing, an array of light emitting diodes enclosed
by the housing consisting of at least two groups of diodes, one group
emitting substantially white light and one group emitting colored light,
a DC to DC converter feeding the light-emitting diodes and enclosed by
the housing, and a light intensity controller for operating each of the
groups of diodes at variable light intensities.