A compression bandage for supporting the tissue in the area between foot and knee, for example for treating venous andor lymphatic swellings, is characterized in that it is designed with a ready-made foot part. Bromination is initiated by adding bromine Br2 into the disperse system. The first bridging assembly may include first and second resistors, and third, fourth, fifth, and sixth conductors. The flow of current through the electromagnet is interrupted so that the magnets are impelled during either a vacuum or a pressure stroke, but are not impelled during the reciprocal stroke. The semiconductor light emitting device comprises a first conductive semiconductor layer, a lower super lattice layer under the first conductive semiconductor layer, an active layer on the first conductive semiconductor layer, a second conductive super lattice layer on the active layer, and a second conductive semiconductor layer on the second conductive super lattice layer.