... use 3 to 4-inch hanging pole with ribbons) and IP53 (if use hook)Lamp and ballast:YML's 100 to 300W ... lamp with high lumen efficiency, high lumenmaintenance, long lifespan and excellent CRIYML's 100 to 300W electronic ballast with die ... aluminum case, features high powerfactor (>0.96), low energy loss and long lifespanApplications:Industrial factory, warehouse, stadium, airport, railway station, ...