diff --git a/configuration.yaml b/configuration.yaml
index 1fc7a45..4980eae 100644
--- a/configuration.yaml
+++ b/configuration.yaml
@@ -80,6 +80,8 @@ shell_command: !include shell_command.yaml
 
 script: !include_dir_named scripts
 
+light: !include light.yaml
+
 automation: !include_dir_merge_list automation
 
 group: !include_dir_named groups
diff --git a/groups/default_view.yaml b/groups/default_view.yaml
index dcacdae..81f09ba 100644
--- a/groups/default_view.yaml
+++ b/groups/default_view.yaml
@@ -3,3 +3,4 @@ entities:
   - group.alarmclock
   - sensor.temperature_1
   - sensor.humidity_1
+  - light.dev
diff --git a/light.yaml b/light.yaml
new file mode 100644
index 0000000..580309e
--- /dev/null
+++ b/light.yaml
@@ -0,0 +1,5 @@
+- platform: mqtt
+  name: 'dev'
+  state_topic: 'den/light1/state'
+  command_topic: 'den/light1/command'
+  optimistic: false