Slide AL series dimmer. Preset feature allows user to return to previous light level when turning lights ON. Device can be wired into either 3-way location (load side or line side). Neutral is not required for installation of device. Adjustable low-level trim setting for optimal lamp compatibility. Radio frequency interference filtering is standard on all models. Electrostatic discharge protection. Precise color matching. Compatible with any decorator wallplate or screwless decorator wallplate. Compatible with most common dimmable lighting loads. (phase-cut). Adjustable rapid start feature ensures lamp start-up even at low dim levels. Title 20/24 compliant.