Light source (10, 14, 16) having a predefined external appearance during non-operation, the light source (10, 14, 16) comprising a light emitter and a light conversion element (30, 34, 36), - the light emitter emitting visible light of a first color (Be) via the light conversion element (30, 34, 36) in a direction away from the light source (10, 14, 16), - the light conversion element (30, 34, 36) comprising a luminescent material for converting at least a part of the light of the first color (Be) into light of a second color (Y1, Y2) different from the first color (Be), - the light source (10, 14, 16) further comprising a conversion material for converting at least a part of ambient light impinging on the conversion material into light of a third color (Ba) different from the second color (Y1, Y2), the ambient light being light originating from outside the light source (10, 14, 16), the conversion material being provided in a layer that is at least partially provided on a surface of the light conversion element (30, 34, 36) facing away from the light emitter, wherein the conversion material is provided to the surface of the light conversion element (30, 34, 36) in a regular pattern of conversion material having openings in between adjacent parts of conversion material, through which light of the first color (Be) and light of the second color (Y1, Y2) can be emitted from the light conversion element (30, 34, 36), a mirror layer being provided in a similar regular pattern as the conversion material, the mirror layer being arranged between the conversion material and the light emitter for improving the efficiency of the light source (10, 14, 16). by recycling light of the first color (Be) and light of the second color (Y1, Y2). - the light emitter emitting visible light of a first color (Be) via the light conversion element (30, 34, 36) in a direction away from the light source (10, 14, 16), - the light conversion element (30, 34, 36) comprising a luminescent material for converting at least a part of the light of the first color (Be) into light of a second color (Y1, Y2) different from the first color (Be), - the light source (10, 14, 16) further comprising a conversion material for converting at least a part of ambient light impinging on the conversion material into light of a third color (Ba) different from the second color (Y1, Y2), the ambient light being light originating from outside the light source (10, 14, 16), the conversion material being provided in a layer that is at least partially provided on a surface of the light conversion element (30, 34, 36) facing away from the light emitter, wherein the conversion material is provided to the surface of the light conversion element (30, 34, 36) in a regular pattern of conversion material having openings in between adjacent parts of conversion material, through which light of the first color (Be) and light of the second color (Y1, Y2) can be emitted from the light conversion element (30, 34, 36), a mirror layer being provided in a similar regular pattern as the conversion material, the mirror layer being arranged between the conversion material and the light emitter for improving the efficiency of the light source (10, 14, 16). by recycling light of the first color (Be) and light of the second color (Y1, Y2).