Auxiliary tow lighting with versatile gripping apparatus and method

A high-level auxiliary lighting unit for towed vehicles, such as a trailer (and/or the load carried on a trailer) includes a multi-function lamp having tail, stop, and turn signal lights. An adjustable connector carries this multi-function lamp relative to a non-marring temporary clamping device, and allows a user to attach the lamp to a trailer, for example, or to a load item, and to orient the lamp to be displayed at a high level and toward the rear of the trailer or other such towed vehicle. The clamping device allows the high-level auxiliary lighting unit to be temporarily attached to a load on a trailer, or to a part of the trailer itself, in order to improve visibility for the trailer and its load, and to possibly reduce rear-end collisions.