Motorised Lighting Bar consist of lighting bar with electric pilewind winch, pulleys system which can be raise and lower from stage height to floor height level to allow rigging of the spotlights and backdrops and for easy maintenance and cleaning.
Most small to medium school halls, auditorium and function centers have fixed lighting bars or truss rig. This is acceptable if there is little changes to be made on the lighting fixtures over the years.
However if you have stage production and show events that require you to change the lighting setup quite often many times over the year then you need to install motorised lighting bar or trusses. A motorised stage lighting bar or truss system will increase work efficiency and lower maintenance cost of the lighting fixtures over the long run.