diff --git a/homeassistant/components/homematic/__init__.py b/homeassistant/components/homematic/__init__.py
index 635be9ed172..c87e2926ae8 100644
--- a/homeassistant/components/homematic/__init__.py
+++ b/homeassistant/components/homematic/__init__.py
@@ -76,7 +76,7 @@ HM_DEVICE_TYPES = {
         'IPSmoke', 'RFSiren', 'PresenceIP', 'IPAreaThermostat',
         'IPWeatherSensor', 'RotaryHandleSensorIP', 'IPPassageSensor',
         'IPKeySwitchPowermeter', 'IPThermostatWall230V', 'IPWeatherSensorPlus',
-        'IPWeatherSensorBasic'],
+        'IPWeatherSensorBasic', 'IPBrightnessSensor'],
     DISCOVER_CLIMATE: [
         'Thermostat', 'ThermostatWall', 'MAXThermostat', 'ThermostatWall2',
         'MAXWallThermostat', 'IPThermostat', 'IPThermostatWall',
diff --git a/homeassistant/components/sensor/homematic.py b/homeassistant/components/sensor/homematic.py
index 8495286c143..26fa76d94a9 100644
--- a/homeassistant/components/sensor/homematic.py
+++ b/homeassistant/components/sensor/homematic.py
@@ -48,6 +48,10 @@ HM_UNIT_HA_CAST = {
     'GAS_POWER': 'm3',
     'GAS_ENERGY_COUNTER': 'm3',
     'LUX': 'lx',
+    'CURRENT_ILLUMINATION': 'lx',
+    'AVERAGE_ILLUMINATION': 'lx',
+    'LOWEST_ILLUMINATION': 'lx',
+    'HIGHEST_ILLUMINATION': 'lx',
     'RAIN_COUNTER': 'mm',
     'WIND_SPEED': 'km/h',
     'WIND_DIRECTION': '°',
@@ -64,6 +68,10 @@ HM_ICON_HA_CAST = {
     'TEMPERATURE': 'mdi:thermometer',
     'ACTUAL_TEMPERATURE': 'mdi:thermometer',
     'LUX': 'mdi:weather-sunny',
+    'CURRENT_ILLUMINATION': 'mdi:weather-sunny',
+    'AVERAGE_ILLUMINATION': 'mdi:weather-sunny',
+    'LOWEST_ILLUMINATION': 'mdi:weather-sunny',
+    'HIGHEST_ILLUMINATION': 'mdi:weather-sunny',
     'BRIGHTNESS': 'mdi:invert-colors',
     'POWER': 'mdi:flash-red-eye',
     'CURRENT': 'mdi:flash-red-eye',