The RT-200 Astronomical time clock and timer switch automatically turns lighting or other loads on and off according to user programming. It replaces standard single-pole wall switches for energy savings and security. Turns lights on and off relative to dusk or dawn, or at selected times of day on selected days of the week Bright OLED display for clear viewing from a wide angle Shipped in default 2 hour countdown time, easily changed to other lengths or none. Ideal for any application where precise time-based control is desired Includes eight programmable control schedules Ideal for meeting California Title 24 Residential Exterior Astronomical Time-Switch with max 6 hour countdown requirement Technical Information Number of Buttons 1 Amperage 4.3 A Timing Range 24-Hour Programmable Wattage 1200 W Connection Type Wired RoHS Compliant Yes This product meets the material restrictions of Article 4 of the RoHS Directive (2011/65/EU), including Commission Delegated Directive 2015/863. DesignLights Consortium Qualified System Yes Security This product is ioXt certified