The SM82-EZ-II is a cost-conscious, durable, surface-mount loudspeaker. One 8.0 inch polypropylene woofer and one 1.0 inch soft dome tweeter. 64-watt low-insertion loss transformer with maximum output. Easy-access six-position selectable tap switch for 25-, 70.7- and 100-volt applications with transformer bypass position. Powder-coated aluminum grille. Included pre-mountable surface-mount bracket allows for quick and easy division of labor.UL 1480 (UEAY) and EN54-24 Pending. IP65 Rated (when port plug is installed).