diff --git a/custom_components/xiaomi_home/miot/specs/specv2entity.py b/custom_components/xiaomi_home/miot/specs/specv2entity.py
index 5c64083..6eb3811 100644
--- a/custom_components/xiaomi_home/miot/specs/specv2entity.py
+++ b/custom_components/xiaomi_home/miot/specs/specv2entity.py
@@ -46,8 +46,16 @@ off Xiaomi or its affiliates' products.
 Conversion rules of MIoT-Spec-V2 instance to Home Assistant entity.
 """
 from homeassistant.components.sensor import SensorDeviceClass
+from homeassistant.components.sensor import SensorStateClass
 from homeassistant.components.event import EventDeviceClass
 
+from homeassistant.const import (
+    UnitOfEnergy,
+    UnitOfPower,
+    UnitOfElectricCurrent,
+    UnitOfElectricPotential,
+)
+
 # pylint: disable=pointless-string-statement
 """SPEC_DEVICE_TRANS_MAP
 {
@@ -302,7 +310,11 @@ SPEC_SERVICE_TRANS_MAP: dict[str, dict | str] = {
     'properties': {
         '<property instance name>':{
             'device_class': str,
-            'entity': str
+            'entity': str,
+            'optional':{
+                'state_class': str,
+                'unit_of_measurement': str
+            }
         }
     }
 }
@@ -358,7 +370,11 @@ SPEC_PROP_TRANS_MAP: dict[str, dict | str] = {
         },
         'voltage': {
             'device_class': SensorDeviceClass.VOLTAGE,
-            'entity': 'sensor'
+            'entity': 'sensor',
+            'optional': {
+                'state_class': SensorStateClass.MEASUREMENT,
+                'unit_of_measurement': UnitOfElectricPotential.VOLT
+            }
         },
         'illumination': {
             'device_class': SensorDeviceClass.ILLUMINANCE,
@@ -368,6 +384,38 @@ SPEC_PROP_TRANS_MAP: dict[str, dict | str] = {
             'device_class': SensorDeviceClass.DURATION,
             'entity': 'sensor'
         },
+	    'electric-power': {
+            'device_class': SensorDeviceClass.POWER,
+            'entity': 'sensor',
+            'optional': {
+                'state_class': SensorStateClass.MEASUREMENT,
+                'unit_of_measurement': UnitOfPower.WATT
+            }
+	    },
+	    'electric-current': {
+            'device_class': SensorDeviceClass.CURRENT,
+            'entity': 'sensor',
+            'optional': {
+                'state_class': SensorStateClass.MEASUREMENT,
+                'unit_of_measurement': UnitOfElectricCurrent.AMPERE
+            }
+	    },
+	    'power-consumption': {
+            'device_class': SensorDeviceClass.ENERGY,
+            'entity': 'sensor',
+            'optional': {
+                'state_class': SensorStateClass.TOTAL_INCREASING,
+                'unit_of_measurement': UnitOfEnergy.KILO_WATT_HOUR
+            }
+	    },
+	    'total-battery': {
+            'device_class': SensorDeviceClass.ENERGY,
+            'entity': 'sensor',
+            'optional': {
+                'state_class': SensorStateClass.TOTAL_INCREASING,
+                'unit_of_measurement': UnitOfEnergy.KILO_WATT_HOUR
+            }
+	    },
         'has-someone-duration': 'no-one-determine-time',
         'no-one-duration': 'no-one-determine-time'
     }