Yes, most popular Lutron smart switches and dimmers (such as the standard Lutron Caséta wireless series) are specifically engineered to operate without a neutral wire, making them ideal for retrofitting older homes where neutral wires are missing from wall boxes. These devices utilize an innovative two-wire design that completes its circuit by drawing a minuscule amount of standby leakage current through the attached light fixture. However, certain advanced models or high-load smart switches may still require a dedicated neutral connection. Verification: Check the wiring diagram and product specifications on the box to confirm whether your specific model functions as a two-wire device.
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