diff --git a/src/DimmerAdaptor.js b/src/DimmerAdaptor.js
index 741181e..cff83e5 100644
--- a/src/DimmerAdaptor.js
+++ b/src/DimmerAdaptor.js
@@ -26,11 +26,19 @@ class DimmerAdaptor extends AItem {
                             this.state = 'OFF';
                         }
                         mqtt.send(this.actionStateTopic, this.state, true);
-                        mqtt.send(this.actionBrightTopic, this.bright, true);
                         break;
                     case 'LONG_HOLD':
+                        this.bright += (5 * this.brightDirection);
+                        if (this.bright > 100) {
+                            this.bright = 100;
+                        }
+                        if (this.bright < 0) {
+                            this.bright = 0;
+                        }
+                        mqtt.send(this.actionBrightTopic, this.bright, true);
                         break;
                     case 'LONG_END':
+                        this.brightDirection = this.brightDirection * -1;
                         break;
                 }  
                 break;
diff --git a/src/homematicDimmerItem.js b/src/homematicDimmerItem.js
index 1dc404a..58903f4 100644
--- a/src/homematicDimmerItem.js
+++ b/src/homematicDimmerItem.js
@@ -30,7 +30,7 @@ class HomematicDimmerItem extends AHomematicItem {
     dimmerAction() {
         if ((this.state != this.oldState) || (this.bright != this.oldBright)) {                
             if (this.state == 'ON') {
-                mqtt.send(this.actionTopic, `${this.bright} / 100.0`);
+                mqtt.send(this.actionTopic, `${this.bright / 100.0}`);
             } else {
                 mqtt.send(this.actionTopic, '0');
             }