diff --git a/dist/AItem.js b/dist/AItem.js
index 64744f1..c2be838 100644
--- a/dist/AItem.js
+++ b/dist/AItem.js
@@ -1,8 +1,10 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 const MqttDispatcher_1 = require("./MqttDispatcher");
-class AItem {
+const Events = require("events");
+class AItem extends Events.EventEmitter {
     constructor(floor, room, item, label = '') {
+        super();
         this.floor = floor;
         this.room = room;
         this.item = item;
diff --git a/dist/HomematicSwitchItem.js b/dist/HomematicSwitchItem.js
index c55b82e..266e85b 100644
--- a/dist/HomematicSwitchItem.js
+++ b/dist/HomematicSwitchItem.js
@@ -10,6 +10,9 @@ class HomematicSwitchItem extends AHomegearItem_1.AHomegearItem {
     getStateFeedbackTopic() {
         return this.stateFeedbackTopic;
     }
+    getState() {
+        return this.state;
+    }
     constructor(floor, room, item, label, hmId, partId = 1, type = 'bulb') {
         super(floor, room, item, label, hmId);
         this.partId = partId;
@@ -29,6 +32,7 @@ class HomematicSwitchItem extends AHomegearItem_1.AHomegearItem {
         return Export_1.SwitchExport(this.itemId, this.label, this.stateTopic, this.stateFeedbackTopic, this.type);
     }
     processMessage(topic, payload) {
+        this.emit('somethingChanged');
         switch (topic) {
             case this.stateTopic:
                 this.state = payload;
diff --git a/dist/main.js b/dist/main.js
index 235dc13..0f07567 100644
--- a/dist/main.js
+++ b/dist/main.js
@@ -371,6 +371,14 @@ let basementLargeLight = new HomematicSwitchItem_1.HomematicSwitchItem('Base', '
 basementLargeLight.start();
 allLabeledItems.push(basementLargeLight);
 allRelevantLights.push(basementLargeLight);
+basementLargeLight.on('somethingChange', () => {
+    if (basementLargeLight.getState() == 'ON') {
+        MqttDispatcher_1.mqttHandler.send(basementSmallLight.getStateTopic(), 'ON');
+    }
+    else if (basementLargeLight.getState() == 'OFF') {
+        MqttDispatcher_1.mqttHandler.send(basementSmallLight.getStateTopic(), 'OFF');
+    }
+});
 // ----------------------------------------------------------------------------------------------------------
 let twoLedSignal1 = new TwoLedSignal_1.TwoLedSignal('Gnd', 'Hallway', 'TwoLedSignal1', 'Licht- und Fenster-Anzeiger', allRelevantLights, "OFF", "ON", allWindows, "CLOSED", "OPEN");
 twoLedSignal1.start();
diff --git a/src/AItem.ts b/src/AItem.ts
index 1249b11..790d292 100644
--- a/src/AItem.ts
+++ b/src/AItem.ts
@@ -1,6 +1,7 @@
 import * as logger from './log'
 import { mqttHandler } from './MqttDispatcher'
 import { ExportType } from './Export'
+import * as Events from 'events'
 
 
 
@@ -20,7 +21,7 @@ export interface HasInTopic {
     getInTopic() : string
 }
 
-export abstract class AItem {
+export abstract class AItem extends Events.EventEmitter {
     protected topicFirstPart: string
     protected itemId: string
     protected label: string
@@ -31,6 +32,7 @@ export abstract class AItem {
 
 
     constructor(floor: string, room: string, item: string, label: string = '') {
+        super()
         this.floor = floor
         this.room = room    
         this.item = item
diff --git a/src/HomematicSwitchItem.ts b/src/HomematicSwitchItem.ts
index 58007d2..1467b0a 100644
--- a/src/HomematicSwitchItem.ts
+++ b/src/HomematicSwitchItem.ts
@@ -22,6 +22,10 @@ export class HomematicSwitchItem extends AHomegearItem implements HasStateAndFee
         return this.stateFeedbackTopic
     }
 
+    getState() : string {
+        return this.state
+    }
+
     constructor(floor: string, room: string, item: string, label: string, hmId: number, partId: number = 1, type: string = 'bulb') {
         super(floor, room, item, label, hmId)
         this.partId = partId
@@ -43,6 +47,7 @@ export class HomematicSwitchItem extends AHomegearItem implements HasStateAndFee
     }
 
     processMessage(topic: string, payload: string) : void {
+        this.emit('somethingChanged')
         switch (topic) {
             case this.stateTopic:
                 this.state = payload
diff --git a/src/main.ts b/src/main.ts
index d72de21..bfdc4f9 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -463,6 +463,13 @@ let basementLargeLight = new HomematicSwitchItem('Base', 'Hallway', 'LargeLight'
 basementLargeLight.start()
 allLabeledItems.push(basementLargeLight)
 allRelevantLights.push(basementLargeLight)
+basementLargeLight.on('somethingChange', () => {
+  if (basementLargeLight.getState() == 'ON') {
+    mqttHandler.send(basementSmallLight.getStateTopic(), 'ON')
+  } else if (basementLargeLight.getState() == 'OFF') {
+    mqttHandler.send(basementSmallLight.getStateTopic(), 'OFF')
+  }
+})
 
 
 // ----------------------------------------------------------------------------------------------------------