Switch features Cushioned thermoplastic paddle assures smooth, quiet, long term operation. Unique single rocking butterfly contact provides long term consistent performance with significantly fewer moving parts. Internal screw-pressure-plate back and side wire capability for easy installation with #14 - #10 stranded or solid copper/copper clad wire. Terminals made of high conductivity brass and serrated for maximum wire gripping. Silver alloy contacts integrally formed to the butterfly actuator assures reliable performance. Integral auto-ground clip for positive ground to metal boxes.