A touch-sensitive light dimmer is an electronic device that allows users to adjust the brightness of a light simply by touching a sensor, rather than using a mechanical switch. It typically uses a touch plate or capacitive sensor to detect the user's touch. The dimmer circuit adjusts the power delivered to the light, allowing for smooth brightness control. This type of dimmer is commonly used for convenience, aesthetics, and energy efficiency. It's ideal for modern lighting setups and can be integrated with smart home systems.