Fix turn_on for TX Ultimate Ambient Light #1369

Author: AlexxIT

custom_components/sonoff/light.py

@@ -1233,14 +1233,11 @@ def set_state(self, params: dict):
     async def async_turn_on(
         self, brightness: int = None, effect: str = None, **kwargs
     ) -> None:
-        params = {}
+        params = {"lightSwitch": "on"}
 
         if effect and effect in T5_EFFECTS:
             params["lightMode"] = T5_EFFECTS[effect]
 
-        if not params:
-            params["lightSwitch"] = "on"
-
         await self.ewelink.send(self.device, params)
 
     async def async_turn_off(self, **kwargs) -> None: