Rugged combination warning light and buzzer give audible and visible alert. Universal application: use with any electrical switch. Product Features:12V DCRed lens, long-life LED11/16 (17.46mm) diameter mounting stem, 17/32 (13.88mm) longBody size: 1 7/8L x 1W x 1 11/32H (47.6 x 25.4 x 34.1mm)