Heavy Duty Normally "Off" S.P.S.T. Non-corrosive construction. Plasticized body sealed against moisture and dirt. Two 18 gauge insulated copper wire leads, 12"L (30.48cm). Chrome plated brass knob and face nut. Mounting stem: 1-1/4"L (3.18cm) x 3/8" dia (.95cm). Position: Off - On Circuits: 1. Rated: 6V-36V DC. Fits panel thru: 5/8" (1.59cm)