NKK Switches IS-S04G1LC-S SmartDisplay™ Fan/Light Controller is ideal for controlling overhead fans and lighting in RVs, homes, businesses, or industrial applications. Comprised of four compact LCD SmartDisplay pushbuttons, users can easily install and operate the system with no operator training required. Programmable images and backlights allow this solution to be entirely customizable for a unique user experience. The switch displays and backlight indicates the mode of operation. The Fan/Light Controller subsystem may be completely pre-programmed or customized using free images and backlight software. The configurable subsystems sense and/or control various statuses, gauges, and devices with either USB, Ethernet, CAN, RS232, or RS485 communication. The system also controls and monitors temperature (°C/°F), which can be displayed by pressing two switches simultaneously.