diff --git a/kasa/iot/iotstrip.py b/kasa/iot/iotstrip.py
@@ -161,11 +161,17 @@ async def _initialize_features(self) -> None:
 
     async def turn_on(self, **kwargs) -> dict:
         """Turn the strip on."""
-        return await self._query_helper("system", "set_relay_state", {"state": 1})
+        for plug in self.children:
+            if plug.is_off:
+                await plug.turn_on()
+        return {}
 
     async def turn_off(self, **kwargs) -> dict:
         """Turn the strip off."""
-        return await self._query_helper("system", "set_relay_state", {"state": 0})
+        for plug in self.children:
+            if plug.is_on:
+                await plug.turn_off()
+        return {}
 
     @property  # type: ignore
     @requires_update

diff --git a/tests/fakeprotocol_iot.py b/tests/fakeprotocol_iot.py
@@ -308,10 +308,6 @@ def set_relay_state(self, x, child_ids=None):
             child_ids = []
         _LOGGER.debug("Setting relay state to %s", x["state"])
 
-        if not child_ids and "children" in self.proto["system"]["get_sysinfo"]:
-            for child in self.proto["system"]["get_sysinfo"]["children"]:
-                child_ids.append(child["id"])
-
         _LOGGER.info("child_ids: %s", child_ids)
         if child_ids:
             for child in self.proto["system"]["get_sysinfo"]["children"]:

diff --git a/tests/iot/test_iotdevice.py b/tests/iot/test_iotdevice.py
@@ -137,8 +137,9 @@ async def test_query_helper(dev):
 @device_iot
 @turn_on
 async def test_state(dev, turn_on):
-    await handle_turn_on(dev, turn_on)
     orig_state = dev.is_on
+    await handle_turn_on(dev, turn_on)
+    await dev.update()
     if orig_state:
         await dev.turn_off()
         await dev.update()

diff --git a/tests/test_feature.py b/tests/test_feature.py
@@ -5,6 +5,7 @@
 from pytest_mock import MockerFixture
 
 from kasa import Device, Feature, KasaException
+from kasa.iot import IotStrip
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -168,7 +169,10 @@ async def _test_feature(feat, query_mock):
         if feat.attribute_setter is None:
             return
 
-        expecting_call = feat.id not in internal_setters
+        # IotStrip makes calls via it's children
+        expecting_call = feat.id not in internal_setters and not isinstance(
+            dev, IotStrip
+        )
 
         if feat.type == Feature.Type.Number:
             await feat.set_value(feat.minimum_value)