diff --git a/source/_components/switch.rest.markdown b/source/_components/switch.rest.markdown
index 43e30200b6e..51c43af6497 100644
--- a/source/_components/switch.rest.markdown
+++ b/source/_components/switch.rest.markdown
@@ -28,8 +28,10 @@ Configuration variables:
 
 - **resource** (*Required*): The resource or endpoint that contains the value.
 - **name** (*Optional*): Name of the REST switch.
-- **body_on** (*Optional*): The body that represents enabled state. Default is "ON".
-- **body_off** (*Optional*):The body that represents disabled state. Default is "OFF".
+- **body_on** (*Optional*): The body of the POST request that commands the switch to become enabled. Default is "ON". This value can be a [template](/topics/templating/), which is useful if the POST request needs to depend on the state of the system. For example, to enable remote-temperature-sensor tracking on a radio thermostat, one has to send the current value of the remote temperature sensor. On can achieve this using the template `'{"rem_temp":{{states.sensor.bedroom_temp.state}}}'`.
+- **body_off** (*Optional*): The body of the POST request that commands the switch to become disabled. Default is "OFF". This value can also be a template.
+- **is_on_template** (*Optional*): A [template](/topics/templating/) that determines the state of the switch from the value returned by the GET request on the resource url. This template should compute to a boolean (True or False). Default is equivalent to `'{{ value.json == body_on }}'`. This means that by default, the state of the switch is on if and only if the response to the GET request matches `body_on`.
+
 
 <p class='note warning'>
 Make sure that the URL matches exactly your endpoint or resource.