With the HEN400 from Hertek you have a very wide range of applications luminaire that excels in ease of installation. You assemble efficiently due to the modular structure of the luminaire. Because of the combination of a beautiful housing, the wide usability and the durable technology you are assured of a perfect application for the escape route indication with the following advantages: Dust and water resistant, Includes icon sheets, For indoor, outdoor or industrial and 4 year warranty including battery.