The object of the invention is to improve the thermal radiation characteristic of the electrodes in a high pressure discharge lamp of the short arc type in which the input power has been increased in order to increase the amount of radiant light, and to reduce the electrode temperature with high efficiency. The movable advertising system is designed to attract the attention of the purchasing public and enhance the sales of advertised product. By tailoring output power levels to specific host devices, regulations related to limiting RF exposure, such as specific absorption rate or maximum permissible exposure limits, may be met without unduly affecting performance of the wireless communications devices. The light damping member is disposed to correspond to the first substrate, and the transmitting member is disposed to correspond to the second substrate. The element is such that, under certain thermal conditions above a given thermal condition, the equipment and the cold part are essentially thermally isolated. Some aspects of the present invention provide an up-sampling procedure designed for the Scalable Video Coding extension of H.