diff --git a/homeassistant/components/wled/sensor.py b/homeassistant/components/wled/sensor.py
index b684bdc0977..8cfd9f98f02 100644
--- a/homeassistant/components/wled/sensor.py
+++ b/homeassistant/components/wled/sensor.py
@@ -3,6 +3,7 @@ from datetime import timedelta
 import logging
 from typing import Any, Callable, Dict, List, Optional, Union
 
+from homeassistant.components.sensor import DEVICE_CLASS_CURRENT
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
     DATA_BYTES,
@@ -105,6 +106,11 @@ class WLEDEstimatedCurrentSensor(WLEDSensor):
         """Return the state of the sensor."""
         return self.coordinator.data.info.leds.power
 
+    @property
+    def device_class(self) -> Optional[str]:
+        """Return the class of this sensor."""
+        return DEVICE_CLASS_CURRENT
+
 
 class WLEDUptimeSensor(WLEDSensor):
     """Defines a WLED uptime sensor."""
diff --git a/tests/components/wled/test_sensor.py b/tests/components/wled/test_sensor.py
index 66fedfdd274..adbd2e6e1fc 100644
--- a/tests/components/wled/test_sensor.py
+++ b/tests/components/wled/test_sensor.py
@@ -3,7 +3,10 @@ from datetime import datetime
 
 import pytest
 
-from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
+from homeassistant.components.sensor import (
+    DEVICE_CLASS_CURRENT,
+    DOMAIN as SENSOR_DOMAIN,
+)
 from homeassistant.components.wled.const import (
     ATTR_LED_COUNT,
     ATTR_MAX_POWER,
@@ -12,6 +15,7 @@ from homeassistant.components.wled.const import (
     SIGNAL_DBM,
 )
 from homeassistant.const import (
+    ATTR_DEVICE_CLASS,
     ATTR_ICON,
     ATTR_UNIT_OF_MEASUREMENT,
     DATA_BYTES,
@@ -94,6 +98,7 @@ async def test_sensors(
     assert state.attributes.get(ATTR_LED_COUNT) == 30
     assert state.attributes.get(ATTR_MAX_POWER) == 850
     assert state.attributes.get(ATTR_UNIT_OF_MEASUREMENT) == CURRENT_MA
+    assert state.attributes.get(ATTR_DEVICE_CLASS) == DEVICE_CLASS_CURRENT
     assert state.state == "470"
 
     entry = registry.async_get("sensor.wled_rgb_light_estimated_current")