It is the object of the present invention to reduce the content selection cost, to commercialize the proper picture content quickly, and to reduce the cost required to research the detailed sales market. The other operation, the push operation or the pull operation, is performed with a current output from the current mirror circuit. The invention also relates to a LED lamp comprising the heat sink device. A ball joint swivel connector is provided to connect the gas inlet of the masks to the hose connection for respiratory or nebulizer treating gases or aerosols.