Disclosed herein is a low pressure discharge lamp having a coating disposed upon at least a portion of inner lead-in wires, wherein the coating comprises refractory nanoparticles. The line-side converter is electrically connected to the load-side converter through a DC intermediate circuit. If the adder is a carrylook-ahead adder, the GENERATE and PROPAGATE signals normally used in subsequent stages to predict the value of the carry signal are forced to constant values even if the inputs to the adder are changing. The adhesive strength of the thermally conductive adhesive layers on the first and second surfaces after exposure to 40\xb0 C. Because the linking section of the frame surrounds the center section, uniformity of rim shot strike sensitivity is improved. The plug has an opening which is positioned to restrict the flow of oil through the passage, and in particular at higher speeds.