The control cabinet is designed and developed in accordance with the CAP437 (Standards for offshore helicopter landing areas) specification, and is used to control the landing light of various ships, offshore platforms, booster stations and other helicopter platforms. Using the CAN bus control system, it can realise the functions of single lamp switch, lamp failure alarm, status lamp control, light control switch, remote control etc. Each lamp has independent diagnosis function and completes its own fault diagnosis and report.