A downlighting illumination system (100) is provided having a high light output ratio with an extended apparent source size producing a near uniform illuminance, correlated colour temperature and colour rendering index distribution across an illuminated area. The system (100) includes a power source (61), an electronic driving system (60), a light emitting source (65), a reflector (67) arranged to receive light from the light emitting source (65) and to reflect light through an output aperture in a manner that virtually extends the apparent size of the light emitting source (65) to illuminate the output aperture.
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