diff --git a/slider-entity-row.js b/slider-entity-row.js
index f33481f..fe7c0ed 100644
--- a/slider-entity-row.js
+++ b/slider-entity-row.js
@@ -2,16 +2,16 @@ class SliderEntityRow extends Polymer.Element {
   static get template() {
     let slider = Polymer.html`
       <paper-slider
-        min="[[min]]"
-        max="[[max]]"
+        min="0"
+        max="100"
         value="{{value}}"
-        step="[[step]]"
+        step="5"
         pin
         on-change="selectedValue"
         ignore-bar-touch
         on-click="stopPropagation">
       </paper-slider>
-      `
+      `;
     return Polymer.html`
     <style>
       hui-generic-entity-row {
@@ -40,7 +40,7 @@ class SliderEntityRow extends Polymer.Element {
           ></ha-entity-toggle>
         </template>
         <template is='dom-if' if='{{displayStatus}}'>
-          <div>
+          <div style="min-width: 40px">
             [[statusString(stateObj)]]
           </div>
         </template>
@@ -62,19 +62,84 @@ class SliderEntityRow extends Polymer.Element {
       breakSlider: { type: Boolean, value: false },
       hideWhenOff: { type: Boolean, value: false },
       showValue: { type: Boolean, value: false },
-      isOn: { type: Boolean },
       stateObj: { type: Object, value: null },
-      min: { type: Number, value: 0 },
-      max: { type: Number, value: 100 },
-      step: { type: Number, value: 5 },
-      attribute: { type: String, value: 'brightness' },
       value: Number,
     };
   }
 
   setConfig(config)
   {
+    const CONTROLLERS = {
+      light: {
+        set: (stateObj, value) => {
+          value = Math.ceil(value/100.0*255);
+          if (value)
+            this._hass.callService('light', 'turn_on', { entity_id: stateObj.entity_id, brightness: value });
+          else
+            this._hass.callService('light', 'turn_off', { entity_id: stateObj.entity_id });
+        },
+        get: (stateObj) => {
+          return (stateObj.state === 'on')?Math.ceil(stateObj.attributes.brightness*100.0/255):0;
+        },
+        supported: (stateObj) => {
+          if('brightness' in stateObj.attributes) return true;
+          if(('supported_features' in stateObj.attributes) &&
+            (stateObj.attributes.supported_features & 1)) return true;
+          return false;
+        },
+        string: (stateObj, l18n) => {
+          if(stateObj.state === 'off') return l18n['state.default.off'];
+          return `${this.controller.get(stateObj)} %`;
+        },
+      },
+
+      media_player: {
+        set: (stateObj, value) => {
+          value = value/100.0;
+          this._hass.callService('media_player', 'volume_set', { entity_id: stateObj.entity_id, volume_level: value });
+        },
+        get: (stateObj) => {
+          return (stateObj.attributes.is_volume_muted)?0:Math.ceil(stateObj.attributes.volume_level*100.0);
+        },
+        supported: (stateObj) => {
+          return true;
+        },
+        string: (stateObj, l18n) => {
+          if (stateObj.attributes.is_volume_muted) return '-';
+          return `${this.controller.get(stateObj)} %`;
+        },
+      },
+
+      cover: {
+        set: (stateObj, value) => {
+          if (value)
+            this._hass.callService('cover', 'set_cover_position', { entity_id: stateObj.entity_id, position: value });
+          else
+            this._hass.callService('cover', 'close_cover', { entity_id: stateObj.entity_id });
+        },
+        get: (stateObj) => {
+          return (stateObj.state === 'open')?stateObj.attributes.current_position:0;
+        },
+        supported: (stateObj) => {
+          if('current_position' in stateObj.attributes) return true;
+          if(('supported_features' in stateObj.attributes) &&
+            (stateObj.attributes.supported_features & 4)) return true;
+          return false;
+        },
+        string: (stateObj, l18n) => {
+          if (!this.controller.supported(stateObj)) return '';
+          if (stateObj.state === 'closed') return l18n['state.cover.closed'];
+          return `${this.controller.get(stateObj)} %`;
+        },
+      },
+    };
+
+
     this._config = config;
+    const domain = config.entity.split('.')[0];
+    this.controller = CONTROLLERS[domain];
+    if(!this.controller) throw new Error('Unsupported entity domain: ' + domain);
+
     this.hideToggle = config.hide_control || config.hide_toggle || false;
     this.breakSlider = config.break_slider || false;
     this.hideWhenOff = config.hide_when_off || false;
@@ -83,13 +148,8 @@ class SliderEntityRow extends Polymer.Element {
 
   statusString(stateObj) {
     let l18n = this._hass.resources[this._hass.language];
-    if(stateObj.state === 'on') {
-      return Math.ceil(stateObj.attributes[this.attribute]/2.55).toString(10);
-    } else if (stateObj.state === 'off') {
-      return l18n['state.default.off'];
-    } else {
-      return l18n['state.default.unavailable'];
-    }
+    if(!stateObj) return l18n['state.default.unavailable'];
+    return this.controller.string(stateObj, l18n);
   }
 
   updateSliders()
@@ -116,11 +176,8 @@ class SliderEntityRow extends Polymer.Element {
       this.displayTop = !this.breakSlider;
     }
 
-    if(!(this.attribute in this.stateObj.attributes)) {
-      if(!('supported_features' in this.stateObj.attributes) ||
-        !(this.stateObj.attributes['supported_features'] & 1)) {
-          this.displayTop = this.displayBottom = false;
-      }
+    if(!this.controller.supported(this.stateObj)) {
+      this.displayTop = this.displayBottom = false;
     }
 
   }
@@ -129,27 +186,13 @@ class SliderEntityRow extends Polymer.Element {
     this._hass = hass;
     this.stateObj = this._config.entity in hass.states ? hass.states[this._config.entity] : null;
     if(this.stateObj) {
-      if(this.stateObj.state === 'on') {
-        this.value = this.stateObj.attributes[this.attribute]/2.55;
-        this.isOn = true;
-      } else {
-        this.value = this.min;
-        this.isOn = false;
-      }
+      this.value = this.controller.get(this.stateObj);
       this.updateSliders();
     }
   }
 
   selectedValue(ev) {
-    const value = Math.ceil(parseInt(this.value, 10)*2.55);
-    const param = {entity_id: this.stateObj.entity_id };
-    if(Number.isNaN(value)) return;
-    if(value === 0) {
-      this._hass.callService('light', 'turn_off', param);
-    } else {
-      param[this.attribute] = value;
-      this._hass.callService('light', 'turn_on', param);
-    }
+    this.controller.set(this.stateObj, parseInt(this.value, 10));
   }
 
   stopPropagation(ev) {