Approved by the Internationally recognized testing authorities of TÜV to the German standards, the DIN 15560 part 46 standards, and by the U.L. Laboratories standards. These Standards are directly associated with safety of suspensions systems mounted above an assembly of people. The Self -Climbing hoist is ideal for the raising and lowering of lighting instruments along with their associated circuits and dimmers. The ability to lower the lighting batten to any positions within the set area, increases the efficiency of the studio operations by allowing easy access to the lighting instruments for aiming, focusing and the handling of the lighting fixtures, This product can be either installed in permanent fixed positions directly to the I-beam sub-structure of the building, or to any supporting grid.