【PRODUCT DESCRIPTION】The DMWD Signal Tower Light can be used to track productivity, alert danger, indicate status, and more. Quality LED optics emit continuous or flashing light,while the bottom also features a built-in buzzer alarm for increased communication options. Interchangeable lampshade can be recombined to different stack light column.Scope of use: Automation equipment, assembly lines, machine tool equipment,textile machinery, ceramic processing equipment, security inspection equipment,electronic machinery, alarm systems, etc.【WHAT'S STACK LIGHTS】Stack lights are commonlyused on equipment in industrial manufacturing and process control environments to provide visual and audible indicators of a machine state or process event tomachine operators, technicians, production managers and factory personne【PRODUCT FEATURES】-100000 hours lifespan LED light-Lamp shade-PC, lamp shell-ABS, rotate base-ABS-Rated IP54 against dust and moisture for convenient industrial application-Able to select any light tier for flashing without needing to re-wire-Built-in buzzer optional for extra sound alarm-Mounting base with 180 rotation function-Industrial-grade material and construction-Pre-assembled, pre-wired【WARRANTY POLICY】We offer 2-year warranty to protect against manufacturer defects and malfunctions. If you experience failure of an LED or other component not caused by negligence,abuse, unauthorized repair or disassembly, we will replace the product within the warranty period. If the same product is no longer available, a product of equalvalue may be substituted. Purchase without worries.