Abstract: This invention provides a flashlight of conventional use that has a socket at its rear end. A plug and flexible conductor assembly is inserted into this socket and carries the battery power from the conventional flashlight to an auxiliary light. This auxiliary light consists of a bulb carried in a housing having a lens, reflector, bulb socket and connecting means for the flexible conductor assembly. This auxiliary housing is pivotally mounted on a bracket attached to a permanent magnet. When magnetic attachment of this auxiliary light is not possible an auxiliary member containing a metal plate and a suction cup is provided. A hook is also disclosed when and where rungs, such as on a ladder, are available. A test probe assembly is shown in two embodiments. In the first embodiment a plug is inserted in the flashlight socket and continuity is indicated by the lighting of the bulb in the flashlight.