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 39b6d39..caeac2a 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
@@ -32,12 +32,10 @@ public class ButtonDimmerController {
 
     @PostMapping
     public ButtonDimmer create(final ButtonDimmerSaveRequest bd) {
+        ButtonDimmer newBD = new ButtonDimmer();
+        newBD.setLights(bd.getLights());
 
-        ButtonDimmer toSave = new ButtonDimmer();
-
-        toSave.setLights(bd.getLights());
-
-        return buttonDimmerService.save(toSave);
+        return buttonDimmerService.save(newBD);
     }
 
     @PutMapping
diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/DimmableLightController.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/DimmableLightController.java
index 5391e43..597a899 100644
--- a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/DimmableLightController.java
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/DimmableLightController.java
@@ -1,9 +1,9 @@
 package ch.usi.inf.sa4.sanmarinoes.smarthut.controller;
 
+import ch.usi.inf.sa4.sanmarinoes.smarthut.dto.DimmableLightSaveRequest;
 import ch.usi.inf.sa4.sanmarinoes.smarthut.models.DimmableLight;
 import ch.usi.inf.sa4.sanmarinoes.smarthut.models.DimmableLightRepository;
 import java.util.Optional;
-import javax.validation.Valid;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.web.bind.annotation.DeleteMapping;
@@ -11,7 +11,6 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
-import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -33,13 +32,16 @@ public class DimmableLightController {
     }
 
     @PostMapping
-    public DimmableLight save(@Valid @RequestBody DimmableLight dl) {
-        return dimmableLightService.save(dl);
+    public DimmableLight create(DimmableLightSaveRequest dl) {
+        DimmableLight newDL = new DimmableLight();
+        newDL.setIntensity(dl.getIntensity());
+
+        return dimmableLightService.save(newDL);
     }
 
     @PutMapping
-    public DimmableLight update(@Valid @RequestBody DimmableLight dl) {
-        return dimmableLightService.save(dl);
+    public DimmableLight update(DimmableLightSaveRequest dl) {
+        return this.create(dl);
     }
 
     @DeleteMapping("/{id}")
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 3dd53d7..a42af17 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
@@ -1,9 +1,9 @@
 package ch.usi.inf.sa4.sanmarinoes.smarthut.controller;
 
+import ch.usi.inf.sa4.sanmarinoes.smarthut.dto.KnobDimmerSaveRequest;
 import ch.usi.inf.sa4.sanmarinoes.smarthut.models.KnobDimmer;
 import ch.usi.inf.sa4.sanmarinoes.smarthut.models.KnobDimmerRepository;
 import java.util.Optional;
-import javax.validation.Valid;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.web.bind.annotation.DeleteMapping;
@@ -11,7 +11,6 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
-import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -33,13 +32,16 @@ public class KnobDimmerController {
     }
 
     @PostMapping
-    public KnobDimmer save(@Valid @RequestBody KnobDimmer kd) {
-        return knobDimmerService.save(kd);
+    public KnobDimmer create(KnobDimmerSaveRequest kd) {
+        KnobDimmer newKD = new KnobDimmer();
+        newKD.setLights(kd.getLights());
+
+        return knobDimmerService.save(newKD);
     }
 
     @PutMapping
-    public KnobDimmer update(@Valid @RequestBody KnobDimmer kd) {
-        return knobDimmerService.save(kd);
+    public KnobDimmer update(KnobDimmerSaveRequest kd) {
+        return this.create(kd);
     }
 
     @DeleteMapping("/{id}")
diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/dto/DimmableLightSaveRequest.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/dto/DimmableLightSaveRequest.java
new file mode 100644
index 0000000..1d3a8e2
--- /dev/null
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/dto/DimmableLightSaveRequest.java
@@ -0,0 +1,25 @@
+package ch.usi.inf.sa4.sanmarinoes.smarthut.dto;
+
+import javax.validation.constraints.Max;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotNull;
+
+public class DimmableLightSaveRequest {
+
+    /** The light intensity value. Goes from 0 (off) to 100 (on) */
+    @NotNull
+    @Min(1)
+    @Max(100)
+    private Integer intensity = 0;
+
+    public Integer getIntensity() {
+        return intensity;
+    }
+
+    public void setIntensity(Integer intensity) throws IllegalArgumentException {
+        if (intensity < 0 || intensity > 100) {
+            throw new IllegalArgumentException("The intensity level can't go below 0 or above 100");
+        }
+        this.intensity = intensity;
+    }
+}
diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/dto/KnobDimmerSaveRequest.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/dto/KnobDimmerSaveRequest.java
new file mode 100644
index 0000000..c7d5193
--- /dev/null
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/dto/KnobDimmerSaveRequest.java
@@ -0,0 +1,18 @@
+package ch.usi.inf.sa4.sanmarinoes.smarthut.dto;
+
+import ch.usi.inf.sa4.sanmarinoes.smarthut.models.DimmableLight;
+import java.util.HashSet;
+import java.util.Set;
+import javax.persistence.Lob;
+
+public class KnobDimmerSaveRequest {
+    @Lob private Set<DimmableLight> lights = new HashSet<DimmableLight>();
+
+    public void setLights(Set<DimmableLight> lights) {
+        this.lights = lights;
+    }
+
+    public Set<DimmableLight> getLights() {
+        return lights;
+    }
+}
diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/KnobDimmer.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/KnobDimmer.java
index 5c5c603..cbba6a2 100644
--- a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/KnobDimmer.java
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/KnobDimmer.java
@@ -61,4 +61,12 @@ public class KnobDimmer extends Dimmer {
     public void clearSet() {
         lights.clear();
     }
+
+    public void setLights(Set<DimmableLight> lights) {
+        this.lights = lights;
+    }
+
+    public Set<DimmableLight> getLights() {
+        return lights;
+    }
 }