Slide dimmer pre-set feature allows user to return to previous light setting when turning lights on. Integrated linear slide control for easy, precise operation. Device can be wired into either 3-way location. Incandescent and magnetic low-voltage offered in single unit version. Neutral is not required for installation of device. Power failure memory. Radio Frequency Interface (RFI) filtering is standard on all models. Electrostatic discharge protection. Compatible with any decorator wall plate or screw less wall plate.