diff --git a/home-assistant/Cargo.toml b/home-assistant/Cargo.toml
index 830d05d..c0d790d 100644
--- a/home-assistant/Cargo.toml
+++ b/home-assistant/Cargo.toml
@@ -26,7 +26,7 @@ pyo3-async-runtimes = { workspace = true, features = ["tokio-runtime"] }
 python-utils = { path = "../python-utils" }
 smol_str = "0.3.2"
 snafu = { workspace = true }
-strum = { version = "0.27.1", features = ["derive"] }
+strum = { workspace = true, features = ["derive"] }
 tokio = { workspace = true }
 tracing = { optional = true, workspace = true }
 ulid = "1.2.0"
diff --git a/home-assistant/src/light/protocol.rs b/home-assistant/src/light/protocol.rs
index d11eca2..4b79e19 100644
--- a/home-assistant/src/light/protocol.rs
+++ b/home-assistant/src/light/protocol.rs
@@ -4,105 +4,73 @@ use crate::{
     event::context::context::Context,
     state::{ErrorState, HomeAssistantState, UnexpectedState},
 };
-use arbitrary_value::arbitrary::Arbitrary;
-use protocol::light::Light;
+use protocol::light::{GetState, SetState};
 use pyo3::prelude::*;
+use python_utils::IsNone;
 use snafu::{ResultExt, Snafu};
 
 #[derive(Debug, Snafu)]
-pub enum IsStateError {
+pub enum GetStateError {
     GetStateObjectError { source: GetStateObjectError },
     Error { state: ErrorState },
     UnexpectedError { state: UnexpectedState },
 }
 
-impl Light for HomeAssistantLight {
-    type IsOnError = IsStateError;
+impl GetState for HomeAssistantLight {
+    type Error = GetStateError;
 
-    async fn is_on(&self) -> Result<bool, Self::IsOnError> {
+    async fn get_state(&self) -> Result<protocol::light::State, Self::Error> {
         let state_object = self.get_state_object().context(GetStateObjectSnafu)?;
         let state = state_object.state;
 
         match state {
-            HomeAssistantState::Ok(light_state) => Ok(matches!(light_state, LightState::On)),
-            HomeAssistantState::Err(state) => Err(IsStateError::Error { state }),
+            HomeAssistantState::Ok(light_state) => Ok(light_state.into()),
+            HomeAssistantState::Err(error_state) => {
+                Err(GetStateError::Error { state: error_state })
+            }
             HomeAssistantState::UnexpectedErr(state) => {
-                Err(IsStateError::UnexpectedError { state })
+                Err(GetStateError::UnexpectedError { state })
             }
         }
     }
-
-    type IsOffError = IsStateError;
-
-    async fn is_off(&self) -> Result<bool, Self::IsOffError> {
-        let state_object = self.get_state_object().context(GetStateObjectSnafu)?;
-        let state = state_object.state;
-
-        match state {
-            HomeAssistantState::Ok(light_state) => Ok(matches!(light_state, LightState::Off)),
-            HomeAssistantState::Err(state) => Err(IsStateError::Error { state }),
-            HomeAssistantState::UnexpectedErr(state) => {
-                Err(IsStateError::UnexpectedError { state })
-            }
-        }
-    }
-
-    type TurnOnError = PyErr;
-
-    async fn turn_on(&mut self) -> Result<(), Self::TurnOnError> {
-        let context: Option<Context<()>> = None;
-        let target: Option<()> = None;
-
-        let services = Python::with_gil(|py| self.home_assistant.services(py))?;
-        // TODO
-        let service_response: Arbitrary = services
-            .call_service(
-                TurnOn {
-                    entity_id: self.entity_id(),
-                },
-                context,
-                target,
-                false,
-            )
-            .await?;
-
-        // TODO
-        #[cfg(feature = "tracing")]
-        tracing::info!(?service_response);
-
-        Ok(())
-    }
-
-    type TurnOffError = PyErr;
-
-    async fn turn_off(&mut self) -> Result<(), Self::TurnOffError> {
-        let context: Option<Context<()>> = None;
-        let target: Option<()> = None;
-
-        let services = Python::with_gil(|py| self.home_assistant.services(py))?;
-        // TODO
-        let service_response: Arbitrary // TODO: a type that validates as None
-         = services
-            .call_service(
-                TurnOff {
-                    entity_id: self.entity_id(),
-                },
-                context,
-                target,
-                false,
-            )
-            .await?;
-
-        // TODO
-        #[cfg(feature = "tracing")]
-        tracing::info!(?service_response);
-
-        Ok(())
-    }
-
-    type ToggleError = PyErr;
-
-    async fn toggle(&mut self) -> Result<(), Self::ToggleError> {
-        todo!()
-    }
+}
+
+impl SetState for HomeAssistantLight {
+    type Error = PyErr;
+
+    async fn set_state(&mut self, state: protocol::light::State) -> Result<(), Self::Error> {
+        let context: Option<Context<()>> = None;
+        let target: Option<()> = None;
+
+        let services = Python::with_gil(|py| self.home_assistant.services(py))?;
+
+        let _: IsNone = match state {
+            protocol::light::State::Off => {
+                services
+                    .call_service(
+                        TurnOff {
+                            entity_id: self.entity_id(),
+                        },
+                        context,
+                        target,
+                        false,
+                    )
+                    .await
+            }
+            protocol::light::State::On => {
+                services
+                    .call_service(
+                        TurnOn {
+                            entity_id: self.entity_id(),
+                        },
+                        context,
+                        target,
+                        false,
+                    )
+                    .await
+            }
+        }?;
+
+        Ok(())
+    }
 }
diff --git a/home-assistant/src/light/state.rs b/home-assistant/src/light/state.rs
index bb418c4..13d8511 100644
--- a/home-assistant/src/light/state.rs
+++ b/home-assistant/src/light/state.rs
@@ -20,3 +20,21 @@ impl<'py> FromPyObject<'py> for LightState {
         Ok(state)
     }
 }
+
+impl From<LightState> for protocol::light::State {
+    fn from(light_state: LightState) -> Self {
+        match light_state {
+            LightState::On => protocol::light::State::On,
+            LightState::Off => protocol::light::State::Off,
+        }
+    }
+}
+
+impl From<protocol::light::State> for LightState {
+    fn from(state: protocol::light::State) -> Self {
+        match state {
+            protocol::light::State::On => LightState::On,
+            protocol::light::State::Off => LightState::Off,
+        }
+    }
+}