Abstract: A light source assembly for a portable lighting system includes a tube assembly. The tube assembly includes at least two lamps, tube supports, and a tube mounted between the tube supports, the tube at least partially surrounding the area between the two lamps to form a light pipe. The tube assembly may be provided within a portable lighting system as part of the light source assembly, or as a convertible option or retrofit system for existing light source assemblies.

Abstract: A drying tumbler is provided which includes a temperature bypass which helps prevent an excessive amount of heat from building up in the tumbler. The drying tumbler includes a rotatable drying chamber for containing items during drying. The drying tumber further includes an air handling system that has a heat source which is operable to provide heated air into the interior space of the drying chamber through an air handling and a blower operable to draw air from the interior space of the drying chamber through an air handling outlet. The air handling system is operable so as to produce an air flow through the drying chamber which is substantially parallel to the rotational axis of the drying chamber. A bypass passageway is provided which communicates with the interior of the drying chamber through a bypass inlet which is in spaced relation from the air handling outlet opening and the blower.