A lighting control system provides variable arc current to one or more fluorescent gas discharge lamps and provides a heating voltage to the lamp electrodes. The buoyancy air cell is in fluid communication with a cell end of a buoyancy compensator tube which has a tank end in fluid communication with an inside periphery of the diving tank through a regulator tube and a regulator valve on the diving tank. A second end of the main lever is provided with a first engagement element for engaging with a second engagement element incorporated into or associated with the main tube. A supervisor port is configured for connection to a supervisor telephone. The B-stage film layer and the molding compound are cured simultaneous in the molding step. Under the weight of the cooler the load bars move toward one another until they contact the cooler, which fixes the width of the stand and completes the structure’s rigidity.