diff --git a/devices/__init__.py b/devices/__init__.py
index 741b8eb..e6efd87 100644
--- a/devices/__init__.py
+++ b/devices/__init__.py
@@ -372,8 +372,10 @@ class shelly(base):
         if self.flash_active:
             self.all_off_requested = True
         else:
-            self.set_output_0(False)
-            self.set_output_1(False)
+            if self.output_0:
+                self.set_output_0(False)
+            if self.output_1:
+                self.set_output_1(False)
 
 
 class silvercrest_powerplug(base):
@@ -418,7 +420,8 @@ class silvercrest_powerplug(base):
         self.set_output_0('toggle')
 
     def all_off(self):
-        self.set_output_0(False)
+        if self.output_0:
+            self.set_output_0(False)
 
 
 class silvercrest_motion_sensor(base):
@@ -661,7 +664,8 @@ class tradfri_light(base):
         self.set_color_temp(data)
 
     def all_off(self):
-        self.set_output_0(False)
+        if self.output_0:
+            self.set_output_0(False)
 
 
 class tradfri_button(base):