diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/ButtonDimmerController.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/ButtonDimmerController.java
index 944bd8e..ed517f8 100644
--- a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/ButtonDimmerController.java
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/ButtonDimmerController.java
@@ -77,14 +77,14 @@ public class ButtonDimmerController
 
     @PostMapping("/{id}/lights")
     public Set<? extends OutputDevice> addLight(
-            @PathVariable("id") long inputId, @RequestParam("lightId") Long lightId)
+            @PathVariable("id") long inputId, @RequestBody List<Long> lightId)
             throws NotFoundException {
         return addOutput(inputId, lightId);
     }
 
     @DeleteMapping("/{id}/lights")
     public Set<? extends OutputDevice> removeLight(
-            @PathVariable("id") long inputId, @RequestParam("lightId") Long lightId)
+            @PathVariable("id") long inputId, @RequestBody List<Long> lightId)
             throws NotFoundException {
         return removeOutput(inputId, lightId);
     }
diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/InputDeviceConnectionController.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/InputDeviceConnectionController.java
index 52f3483..ca2997a 100644
--- a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/InputDeviceConnectionController.java
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/InputDeviceConnectionController.java
@@ -2,6 +2,8 @@ package ch.usi.inf.sa4.sanmarinoes.smarthut.controller;
 
 import ch.usi.inf.sa4.sanmarinoes.smarthut.error.NotFoundException;
 import ch.usi.inf.sa4.sanmarinoes.smarthut.models.*;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Set;
 
 /**
@@ -14,11 +16,11 @@ import java.util.Set;
 public abstract class InputDeviceConnectionController<
         I extends InputDevice, O extends OutputDevice> {
 
-    private class IOPair {
+    private class Connection {
         private final I input;
-        private final O output;
+        private final List<O> output;
 
-        private IOPair(I input, O output) {
+        private Connection(I input, List<O> output) {
             this.input = input;
             this.output = output;
         }
@@ -46,31 +48,39 @@ public abstract class InputDeviceConnectionController<
         this.connector = connector;
     }
 
-    private IOPair checkConnectionIDs(Long inputId, Long outputId) throws NotFoundException {
+    private Connection checkConnectionIDs(Long inputId, List<Long> outputs)
+            throws NotFoundException {
         final I input =
                 inputRepository
                         .findById(inputId)
                         .orElseThrow(() -> new NotFoundException("input device"));
-        final O output =
-                outputReposiory
-                        .findById(outputId)
-                        .orElseThrow(() -> new NotFoundException("output device"));
-        return new IOPair(input, output);
+        final List<O> outputDevices = new ArrayList<>();
+        for (final Long outputId : outputs) {
+            outputDevices.add(
+                    outputReposiory
+                            .findById(outputId)
+                            .orElseThrow(() -> new NotFoundException("output device")));
+        }
+        return new Connection(input, outputDevices);
     }
 
     /**
      * Implements the output device connection creation (add) route
      *
      * @param inputId input device id
-     * @param outputId output device id
+     * @param outputId output device id list
      * @return the list of output devices attached to the input device of id inputId
      * @throws NotFoundException if inputId or outputId are not valid
      */
-    protected Set<? extends OutputDevice> addOutput(Long inputId, Long outputId)
+    protected Set<? extends OutputDevice> addOutput(Long inputId, List<Long> outputId)
             throws NotFoundException {
-        final IOPair pair = checkConnectionIDs(inputId, outputId);
-        connector.connect(pair.input, pair.output, true);
-        outputReposiory.save(pair.output);
+        final Connection pair = checkConnectionIDs(inputId, outputId);
+
+        for (final O o : pair.output) {
+            connector.connect(pair.input, o, true);
+        }
+
+        outputReposiory.saveAll(pair.output);
         return pair.input.getOutputs();
     }
 
@@ -78,15 +88,19 @@ public abstract class InputDeviceConnectionController<
      * Implements the output device connection destruction (remove) route
      *
      * @param inputId input device id
-     * @param outputId output device id
+     * @param outputId output device id list
      * @return the list of output devices attached to the input device of id inputId
      * @throws NotFoundException if inputId or outputId are not valid
      */
-    protected Set<? extends OutputDevice> removeOutput(Long inputId, Long outputId)
+    protected Set<? extends OutputDevice> removeOutput(Long inputId, List<Long> outputId)
             throws NotFoundException {
-        final IOPair pair = checkConnectionIDs(inputId, outputId);
-        connector.connect(pair.input, pair.output, false);
-        outputReposiory.save(pair.output);
+        final Connection pair = checkConnectionIDs(inputId, outputId);
+
+        for (final O o : pair.output) {
+            connector.connect(pair.input, o, false);
+        }
+
+        outputReposiory.saveAll(pair.output);
         return pair.input.getOutputs();
     }
 }
diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/KnobDimmerController.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/KnobDimmerController.java
index c15d867..a259d98 100644
--- a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/KnobDimmerController.java
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/KnobDimmerController.java
@@ -70,14 +70,14 @@ public class KnobDimmerController
 
     @PostMapping("/{id}/lights")
     public Set<? extends OutputDevice> addLight(
-            @PathVariable("id") long inputId, @RequestParam("lightId") Long lightId)
+            @PathVariable("id") long inputId, @RequestBody List<Long> lightId)
             throws NotFoundException {
         return addOutput(inputId, lightId);
     }
 
     @DeleteMapping("/{id}/lights")
     public Set<? extends OutputDevice> removeLight(
-            @PathVariable("id") long inputId, @RequestParam("lightId") Long lightId)
+            @PathVariable("id") long inputId, @RequestBody List<Long> lightId)
             throws NotFoundException {
         return removeOutput(inputId, lightId);
     }
diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/SwitchController.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/SwitchController.java
index fc64ccb..5794a01 100644
--- a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/SwitchController.java
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/SwitchController.java
@@ -83,14 +83,14 @@ public class SwitchController extends InputDeviceConnectionController<Switch, Sw
 
     @PostMapping("/{id}/lights")
     public Set<? extends OutputDevice> addSwitchable(
-            @PathVariable("id") long inputId, @RequestParam("switchableId") Long switchableId)
+            @PathVariable("id") long inputId, @RequestBody List<Long> switchableId)
             throws NotFoundException {
         return addOutput(inputId, switchableId);
     }
 
     @DeleteMapping("/{id}/lights")
     public Set<? extends OutputDevice> removeSwitchable(
-            @PathVariable("id") long inputId, @RequestParam("switchableId") Long switchableId)
+            @PathVariable("id") long inputId, @RequestBody List<Long> switchableId)
             throws NotFoundException {
         return removeOutput(inputId, switchableId);
     }