Thomas & Betts #DH1695L WHT/BRS Rect PushButton Rectangular lighted wired. White push button with solid brass escutcheon. For use with wired chimes, bells and buzzers. Flush mounted, 8-24 volt. Do not use with battery powered chimes. 2-7/8" x 1-1/4" x 1". White button. DOOR BELL PUSHBUTTONS Volt Range=8-24 Finish=Copper WIRED - FLUSH MOUNTED