diff --git a/bundles/org.openhab.binding.deconz/README.md b/bundles/org.openhab.binding.deconz/README.md
index 4103a35f070..c7c73a84283 100644
--- a/bundles/org.openhab.binding.deconz/README.md
+++ b/bundles/org.openhab.binding.deconz/README.md
@@ -179,7 +179,7 @@ Other devices support
 | brightness        | Dimmer               |     R/W     | Brightness of the light                                                                           | `dimmablelight`, `colortemperaturelight`                                                                    |
 | switch            | Switch               |     R/W     | State of a ON/OFF device                                                                          | `onofflight`                                                                                                |
 | color             | Color                |     R/W     | Color of an multi-color light                                                                     | `colorlight`, `extendedcolorlight`, `lightgroup`                                                            |
-| color_temperature | Number               |     R/W     | Color temperature in Kelvin. The value range is determined by each individual light               | `colortemperaturelight`, `extendedcolorlight`, `lightgroup`                                                 |
+| color_temperature | Number:Temperature   |     R/W     | Color temperature in Kelvin. The value range is determined by each individual light               | `colortemperaturelight`, `extendedcolorlight`, `lightgroup`                                                 |
 | effect            | String               |     R/W     | Effect selection. Allowed commands are set dynamically                                            | `colorlight`                                                                                                |
 | effectSpeed       | Number               |      W      | Effect Speed                                                                                      | `colorlight`                                                                                                |
 | lock              | Switch               |     R/W     | Lock (ON) or unlock (OFF) the doorlock                                                            | `doorlock`                                                                                                  |
diff --git a/bundles/org.openhab.binding.deconz/src/main/java/org/openhab/binding/deconz/internal/handler/LightThingHandler.java b/bundles/org.openhab.binding.deconz/src/main/java/org/openhab/binding/deconz/internal/handler/LightThingHandler.java
index 9c408369fcb..2e035dd1374 100644
--- a/bundles/org.openhab.binding.deconz/src/main/java/org/openhab/binding/deconz/internal/handler/LightThingHandler.java
+++ b/bundles/org.openhab.binding.deconz/src/main/java/org/openhab/binding/deconz/internal/handler/LightThingHandler.java
@@ -123,6 +123,7 @@ public class LightThingHandler extends DeconzBaseThingHandler {
 
                 // minimum and maximum are inverted due to mired/kelvin conversion!
                 StateDescriptionFragment stateDescriptionFragment = StateDescriptionFragmentBuilder.create()
+                        .withStep(BigDecimal.valueOf(100)).withPattern("%.0f K")
                         .withMinimum(new BigDecimal(miredToKelvin(ctMax)))
                         .withMaximum(new BigDecimal(miredToKelvin(ctMin))).build();
                 stateDescriptionProvider.setDescriptionFragment(
diff --git a/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/i18n/deconz.properties b/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/i18n/deconz.properties
index 1cf05de8bb1..3011c782e2d 100644
--- a/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/i18n/deconz.properties
+++ b/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/i18n/deconz.properties
@@ -113,8 +113,6 @@ channel-type.deconz.carbonmonoxide.label = Carbon-monoxide
 channel-type.deconz.carbonmonoxide.description = Carbon-monoxide was detected.
 channel-type.deconz.consumption.label = Consumption
 channel-type.deconz.consumption.description = Current consumption
-channel-type.deconz.ct.label = Color Temperature
-channel-type.deconz.ct.description = Controls the color temperature of the light in Kelvin
 channel-type.deconz.current.label = Current
 channel-type.deconz.current.description = Current current
 channel-type.deconz.dark.label = Dark
diff --git a/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/thing/group-thing-types.xml b/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/thing/group-thing-types.xml
index df389ed9eb0..30527ae74ce 100644
--- a/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/thing/group-thing-types.xml
+++ b/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/thing/group-thing-types.xml
@@ -15,12 +15,12 @@
 			<channel typeId="any_on" id="any_on"/>
 			<channel typeId="alert" id="alert"/>
 			<channel typeId="system.color" id="color"/>
-			<channel typeId="ct" id="color_temperature"/>
+			<channel typeId="system.color-temperature-abs" id="color_temperature"/>
 			<channel typeId="scene" id="scene"/>
 		</channels>
 
 		<properties>
-			<property name="thingTypeVersion">1</property>
+			<property name="thingTypeVersion">2</property>
 		</properties>
 
 		<representation-property>uid</representation-property>
diff --git a/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/thing/light-thing-types.xml b/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/thing/light-thing-types.xml
index 7130c614874..89feb5d1bbc 100644
--- a/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/thing/light-thing-types.xml
+++ b/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/thing/light-thing-types.xml
@@ -87,13 +87,13 @@
 		<category>Lightbulb</category>
 		<channels>
 			<channel typeId="system.brightness" id="brightness"/>
-			<channel typeId="ct" id="color_temperature"/>
+			<channel typeId="system.color-temperature-abs" id="color_temperature"/>
 			<channel typeId="ontime" id="ontime"/>
 			<channel typeId="alert" id="alert"/>
 		</channels>
 
 		<properties>
-			<property name="thingTypeVersion">1</property>
+			<property name="thingTypeVersion">2</property>
 		</properties>
 
 		<representation-property>uid</representation-property>
@@ -132,13 +132,13 @@
 		<category>Lightbulb</category>
 		<channels>
 			<channel typeId="system.color" id="color"/>
-			<channel typeId="ct" id="color_temperature"/>
+			<channel typeId="system.color-temperature-abs" id="color_temperature"/>
 			<channel typeId="ontime" id="ontime"/>
 			<channel typeId="alert" id="alert"/>
 		</channels>
 
 		<properties>
-			<property name="thingTypeVersion">1</property>
+			<property name="thingTypeVersion">2</property>
 		</properties>
 
 		<representation-property>uid</representation-property>
@@ -169,14 +169,6 @@
 		<state pattern="%.1f %%"/>
 	</channel-type>
 
-	<channel-type id="ct">
-		<item-type>Number</item-type>
-		<label>Color Temperature</label>
-		<description>Controls the color temperature of the light in Kelvin</description>
-		<category>ColorLight</category>
-		<state pattern="%.0f K" min="1000" max="10000"/>
-	</channel-type>
-
 	<channel-type id="ontime">
 		<item-type>Number:Time</item-type>
 		<label>On Time</label>
diff --git a/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/update/update.xml b/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/update/update.xml
index e4639b0ad1d..a16b2301787 100644
--- a/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/update/update.xml
+++ b/bundles/org.openhab.binding.deconz/src/main/resources/OH-INF/update/update.xml
@@ -33,6 +33,11 @@
 				<type>system:brightness</type>
 			</update-channel>
 		</instruction-set>
+		<instruction-set targetVersion="2">
+			<update-channel id="color_temperature">
+				<type>system:color-temperature-abs</type>
+			</update-channel>
+		</instruction-set>
 	</thing-type>
 
 	<thing-type uid="deconz:dimmablelight">
@@ -49,6 +54,11 @@
 				<type>system:color</type>
 			</update-channel>
 		</instruction-set>
+		<instruction-set targetVersion="2">
+			<update-channel id="color_temperature">
+				<type>system:color-temperature-abs</type>
+			</update-channel>
+		</instruction-set>
 	</thing-type>
 
 	<thing-type uid="deconz:lightgroup">
@@ -57,6 +67,11 @@
 				<type>system:color</type>
 			</update-channel>
 		</instruction-set>
+		<instruction-set targetVersion="2">
+			<update-channel id="color_temperature">
+				<type>system:color-temperature-abs</type>
+			</update-channel>
+		</instruction-set>
 	</thing-type>
 
 	<thing-type uid="deconz:onofflight">