diff --git a/source/_components/light.markdown b/source/_components/light.markdown
index 7d92ef67606..c54acd0ebb6 100644
--- a/source/_components/light.markdown
+++ b/source/_components/light.markdown
@@ -49,7 +49,7 @@ Turns one or multiple lights off.
 | Service data attribute | Optional | Description |
 | ---------------------- | -------- | ----------- |
 | `entity_id` | no | String or list of strings that point at `entity_id`s of lights. Else targets all.
-| `transition` | yes | Integer that represents the time the light should take to transition to the new state.
+| `transition` | yes | Integer that represents the time the light should take to transition to the new state in seconds.
 
 ### {% linkable_title Service `light.toggle` %}