Extra heavy-duty specification grade AC toggle switch. Single-pole, tamper-resistant. Back and side wired. Heavy gauge copper alloy brush arm for superior performance. Large silver alloy contacts for long life prevent sticking, welding and excessive pitting. Fully enclosed switch mechanism in rugged housing for strength, tracking and arc resistance. Self-grounding clip (self grounding when used with a grounded metal wall box). Wire lead switches also available for fast and easy installation.