initial commit

configuration/sensor/template_light_on_number.yaml

@@ -0,0 +1,8 @@
+---
+- platform: template
+  sensors:
+    number_light_on:
+      friendly_name: "Lights ON"
+      unit_of_measurement: light(s)
+      value_template: >
+        {{ states.light | rejectattr('attributes.color_mode', '==', 'onoff') | rejectattr('attributes.entity_id', 'defined') | selectattr('state', '==', 'on') | map(attribute='entity_id') | list | count }}