diff --git a/controller/controller.go b/controller/controller.go
index 278663f..3e40773 100644
--- a/controller/controller.go
+++ b/controller/controller.go
@@ -16,7 +16,7 @@ func TurnOn(ip string, port string, temperature int, dimming int) {
 		panic("Unable to connect to light bulp!")
 	}
 
-	c.Write([]byte(`{"method": "setPilot", "params":{"state": true, "temp": temperature, "dimming": dimming}}`))
+	c.Write([]byte(`{"method": "setPilot", "params":{"state": true, "temp": 2700, "dimming": 100}}`))
 }
 
 func TurnOff(ip string, port string) {
diff --git a/data.go b/data.go
index dc08d3d..21f3195 100644
--- a/data.go
+++ b/data.go
@@ -13,4 +13,5 @@ type BulbStatus struct {
 type GroupStatus struct {
 	Name  string
 	Bulbs []BulbStatus
+	AllOn bool
 }
diff --git a/devenv.lock b/devenv.lock
index eec00f3..982f184 100644
--- a/devenv.lock
+++ b/devenv.lock
@@ -31,10 +31,31 @@
         "type": "github"
       }
     },
+    "git-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1737465171,
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "9364dc02281ce2d37a1f55b6e51f7c0f65a75f17",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
     "gitignore": {
       "inputs": {
         "nixpkgs": [
-          "pre-commit-hooks",
+          "git-hooks",
           "nixpkgs"
         ]
       },
@@ -66,32 +87,14 @@
         "type": "github"
       }
     },
-    "pre-commit-hooks": {
-      "inputs": {
-        "flake-compat": "flake-compat",
-        "gitignore": "gitignore",
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1737465171,
-        "owner": "cachix",
-        "repo": "pre-commit-hooks.nix",
-        "rev": "9364dc02281ce2d37a1f55b6e51f7c0f65a75f17",
-        "type": "github"
-      },
-      "original": {
-        "owner": "cachix",
-        "repo": "pre-commit-hooks.nix",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "devenv": "devenv",
+        "git-hooks": "git-hooks",
         "nixpkgs": "nixpkgs",
-        "pre-commit-hooks": "pre-commit-hooks"
+        "pre-commit-hooks": [
+          "git-hooks"
+        ]
       }
     }
   },
diff --git a/devenv.nix b/devenv.nix
index cd841a1..6c09f3e 100644
--- a/devenv.nix
+++ b/devenv.nix
@@ -13,6 +13,7 @@
 
   # https://devenv.sh/languages/
   languages.go.enable = true;
+  languages.go.enableHardeningWorkaround = true;
 
   # https://devenv.sh/processes/
   # processes.cargo-watch.exec = "cargo-watch";
diff --git a/main.go b/main.go
index a5b35ed..3ce1ff8 100644
--- a/main.go
+++ b/main.go
@@ -27,6 +27,7 @@ func main() {
 		// Für jede Gruppe in den Konfigurationsdaten: Status der Bulbs abfragen.
 		for groupName, group := range config.Groups {
 			var bulbs []BulbStatus
+			allOn := true // Annahme: Alle Glühbirnen sind eingeschaltet
 
 			for _, bulp := range group.Bulps {
 				// Abfrage des Status, hier wird angenommen, dass controller.GetStatus(ip, port) einen Status zurückgibt
@@ -39,9 +40,13 @@ func main() {
 
 				if err != nil {
 					bulb.Message = fmt.Sprintf("Fehler: %v", err)
+					allOn = false // Fehler: Nicht alle Glühbirnen sind eingeschaltet
 				} else {
 					// Beispiel: Wir nutzen status.Result.State um zu bestimmen, ob das Licht an ist.
 					bulb.IsOn = status.Result.State
+					if !status.Result.State {
+						allOn = false // Mindestens eine Glühbirne ist ausgeschaltet
+					}
 				}
 
 				bulbs = append(bulbs, bulb)
@@ -50,6 +55,7 @@ func main() {
 			groupStatus := GroupStatus{
 				Name:  groupName,
 				Bulbs: bulbs,
+				AllOn: allOn, // Setze den Gesamtstatus der Gruppe
 			}
 			groups = append(groups, groupStatus)
 		}
@@ -59,6 +65,37 @@ func main() {
 		})
 	})
 
+	r.POST(
+		"/toggle-group",
+		func(c *gin.Context) {
+			var request struct {
+				GroupName string `json:"groupName"`
+				TurnOn    bool   `json:"turnOn"`
+			}
+
+			if err := c.BindJSON(&request); err != nil {
+				c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+				return
+			}
+
+			group, exists := config.Groups[request.GroupName]
+			if !exists {
+				c.JSON(http.StatusNotFound, gin.H{"error": "Gruppe nicht gefunden"})
+				return
+			}
+
+			for _, bulb := range group.Bulps {
+				if request.TurnOn {
+					controller.TurnOn(bulb.IP, bulb.Port, config.Defaults.Temperatur, config.Defaults.Dimming)
+				} else {
+					controller.TurnOff(bulb.IP, bulb.Port)
+				}
+			}
+
+			c.JSON(http.StatusOK, gin.H{"message": "Gruppe erfolgreich geschaltet"})
+		},
+	)
+
 	// static files
 	r.StaticFile("/styles.css", "static/styles.css")
 	r.StaticFile("/favicon.ico", "static/favicon.ico")
diff --git a/misc/sample-config.yml b/misc/sample-config.yml
index 3b2271e..25fe024 100644
--- a/misc/sample-config.yml
+++ b/misc/sample-config.yml
@@ -2,11 +2,24 @@ defaults:
   temperatur: 2700
   dimming: 100
 groups:
-  wohnzimmer:
+  alle:
     bulps:
       - ip: "192.168.0.151"
         name: "Wohnzimmer gross"
         port: "38899"
+      - ip: "192.168.0.152"
+        name: "Wohnzimmer klein 1"
+        port: "38899"
+      - ip: "192.168.0.153"
+        name: "Wohnzimmer klein 2"
+        port: "38899"
+  tisch:
+    bulps:
+      - ip: "192.168.0.151"
+        name: "Wohnzimmer gross"
+        port: "38899"
+  tv:
+    bulps:
       - ip: "192.168.0.152"
         name: "Wohnzimmer klein 1"
         port: "38899"
diff --git a/static/styles.css b/static/styles.css
index fd2365d..2032835 100644
--- a/static/styles.css
+++ b/static/styles.css
@@ -159,4 +159,64 @@ footer {
     .bulb-list {
         flex-direction: column;
     }
+}
+
+/* The switch - the box around the slider */
+.switch {
+    position: relative;
+    display: inline-block;
+    width: 60px;
+    height: 34px;
+}
+
+/* Hide default HTML checkbox */
+.switch input {
+    opacity: 0;
+    width: 0;
+    height: 0;
+}
+
+.switch {
+    position: relative;
+    display: inline-block;
+    width: 60px;
+    height: 34px;
+}
+
+.switch input {
+    opacity: 0;
+    width: 0;
+    height: 0;
+}
+
+.slider {
+    position: absolute;
+    cursor: pointer;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background-color: #ccc;
+    transition: .4s;
+    border-radius: 34px;
+}
+
+.slider:before {
+    position: absolute;
+    content: "";
+    height: 26px;
+    width: 26px;
+    left: 4px;
+    bottom: 4px;
+    background-color: white;
+    transition: .4s;
+    border-radius: 50%;
+}
+
+input:checked+.slider {
+    background-color: #2196F3;
+}
+
+input:checked+.slider:before {
+    transform: translateX(26px);
 }
\ No newline at end of file
diff --git a/templates/index.html b/templates/index.html
index 9ce6179..f27ff9e 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -15,6 +15,39 @@
     <link rel="stylesheet" href="/styles.css">
     <!-- Optional: Favicon -->
     <link rel="icon" href="/favicon.ico" type="image/x-icon">
+    <script>
+        document.addEventListener("DOMContentLoaded", function () {
+            document.querySelectorAll('.group .switch input').forEach(function (checkbox) {
+                checkbox.addEventListener('change', function () {
+                    const groupName = this.closest('.group').querySelector('h2').textContent.trim();
+                    const turnOn = this.checked;
+
+                    fetch('/toggle-group', {
+                        method: 'POST',
+                        headers: {
+                            'Content-Type': 'application/json',
+                        },
+                        body: JSON.stringify({
+                            groupName: groupName,
+                            turnOn: turnOn
+                        })
+                    })
+                        .then(response => response.json())
+                        .then(data => {
+                            if (data.error) {
+                                alert(data.error);
+                            } else {
+                                // Optional: Seite neu laden oder Status aktualisieren
+                                location.reload();
+                            }
+                        })
+                        .catch(error => {
+                            console.error('Fehler:', error);
+                        });
+                });
+            });
+        });
+    </script>
 </head>
 
 <body>
@@ -32,12 +65,19 @@
                     <img src="/room.png" alt="Raum Symbol" style="width:24px;height:24px;vertical-align:middle;" />
                     {{.Name}}
                 </h2>
+
+                <!-- Toggle-Button -->
+                <label class="switch">
+                    <input type="checkbox" {{if .AllOn}}checked{{end}}>
+                    <span class="slider"></span>
+                </label>
+
                 <ul>
                     {{/* Iteriere über die Bulbs innerhalb der aktuellen Gruppe */}}
                     {{range .Bulbs}}
                     <li>
                         <!-- IP und Port anzeigen -->
-                        Name: {{.Name}}
+                        {{.Name}}
                         {{if .Message}}
                         Fehler: {{.Message}}
                         {{else}}