This exit sign is designed for extremely wet locations where is may be constantly exposed to rain or the elements. Made of injection molded plastic. 120/277 VAC dual voltage operation. 6" high letters with a 3/4" stroke. Available in RED or GREEN letters. LED indicator light with push button test switch. Includes nickel-cadmium battery that delivers more than 90 minutes capacity on emergency mode. Includes universal mounting plate with EZ quick connect for rapid installation. Overall dimensions: 11.75" x 11.75" UL listed.