Set on the upper part of the main stage, it has a wide range of uses, which can be used for lifting scenery, various curtains, second curtains, side gable curtains and meeting signs, as well as hanging lamps and lanterns, participating in performances and so on.

The boom system consists of boom pole body, winch system, protection device, control system and so on.

The specific structure configuration consists of the following parts:

Boom pole body: single pole type, double pole type, triangular type or Japanese type and other structures, lighting boom can be configured with take-up baskets, with lighting bridge on the pole, including lighting sockets.

Winch system: motor, reducer, double brake, reel, pulley components, wire rope and accessories, etc.

Protection devices: up and down travel detection system, positioning detection, forced rope discharge, brake detection, fire-breaking device, etc.

Control system: computer or programmable controller should be used, which can be controlled on the main operation desk and mobile operation desk. It should be able to set the position and speed on the operating table, and have the functions of displaying the movement status and positioning as well as memory storage. There should be buttons for ascending, descending and emergency stop on the operating platform and separate manipulation buttons for each boom.

Technical Parameters