Yes, you cannot use a standard single-pole light switch (which only features two terminal screws and an on-off toggle) when wiring a multi-location 3-way lighting circuit. You must use a specialized 3-way switch equipped with three distinct brass terminal screws (one dark common terminal and two light traveler terminals) plus a green grounding screw. These specialized switches work in tandem to redirect electrical current across two traveler wires, allowing a single light fixture to be controlled independently from two separate locations. You can troubleshoot hardware requirements easily by checking switch terminals. You can verify that your installation is correct when purchasing and installing true 3-way switches ensures proper circuit compatibility and smooth multi-location operation.
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