A light emitting diode including a GaN substrate, a first type semiconductor layer, a light emitting layer, a second type semiconductor layer, a first electrode, and a second electrode is provided. Each cooling pipe includes an inside space dissected into cooling passages in which coolant flows. One aspect of the invention relates to a latch that is placed in a recess when the lid is opened so as to eliminate unsightly and harmful protrusions. One of the interlock plates has a first opening operation engagement portion releasing the first normally-closed contact when the interlock plate moves. The system comprises an electronic control board for at least one electric motor arranged inside said container body suitable for moving said drive shaft.