TO INSTALL A DAMPER (JUST SUSPEND THE LUMINAIRE FROM THE DAMPER) WHICH WOULD PROTECT THE COSTLY LAMPS FORM THE PREMATURE FAILURE DUE TO VIBRATION AND HEAVY SHOCKS, THUS SUBSTANTIALLY SAVING ON COST OF THE LAMP, AND WHICH ALSO SAVES LABOUR AND DOWN TIME BEACAUSE OF DAMPER.SO, FROM THE ECONCOMICAL POINT OF VIEW THE HIGH BAY DAMPERS ARE INDISPENABLE FOR HIGH BAY LUMINAIRES TO SAVE VERY COSTLY LAMPS FIXED ON IT.