Astronomical Wall Switch Timer - 120/277V 1200W - Black

1 Review
Brand: Wattstopper
Mfr Part Number: RT200B

Only available for Shipping

6 Available

In Stock


The Wattstopper RT200B astronomical wall switch timer 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 inside and outside.

  • Turns lights on and off relative to dusk or dawn, or at selected times of day
  • Activates lighting on selected days of the week
  • Ideal for outdoor lighting, spa control and entry halls
  • Includes eight programmable control schedules
  • Compliant with California Title 24-2008

Brochures & Spec Sheets

Spec SheetWattstopper RT200B SpecsDocumentationWattstopper RT200B Installation

Electrical & Operational Information

Wattage Rating (W)1200Input Voltage120V, 277V
Operating Temperature32°F - 122°F


Color FinishBlackFixture Mounting TypeIn-Wall Mount
Housing MaterialThermoplasticLoad TypeIncandescent, Electronic Low Voltage, Magnetic Low Voltage, Motors
Sensor TechnologyTimeSwitch Control TypeSingle Pole
Switch TypeProgrammable, DigitalTimer Duration24 Hours, 7 Days

Warranty & Certifications

CA ComplianceTitle 24UL Listedyes

Dimensions & Measurements

Product Length (in.)1.88Product Width (in.)1.69
Product Height (in.)2.63

Ratings & Reviews

1 review

  • 4 stars
  • 0 reviews
  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews

Great Timer!

by -

You can set your latitude and longitude and time your lights to the sunrise and sunset. My only gripe is the way you open the door to adjust settings. You have to wedge a small screwdriver in a slot and pry it open. The door then flies open and I'm petrified that I'm going to snap it off.