diff --git a/homeassistant/components/zerproc/light.py b/homeassistant/components/zerproc/light.py
index 0fa18197764..2ab4bc127c4 100644
--- a/homeassistant/components/zerproc/light.py
+++ b/homeassistant/components/zerproc/light.py
@@ -1,7 +1,7 @@
 """Zerproc light platform."""
 from datetime import timedelta
 import logging
-from typing import Callable, List
+from typing import Callable, List, Optional
 
 import pyzerproc
 
@@ -142,6 +142,11 @@ class ZerprocLight(LightEntity):
             "manufacturer": "Zerproc",
         }
 
+    @property
+    def icon(self) -> Optional[str]:
+        """Return the icon to use in the frontend."""
+        return "mdi:string-lights"
+
     @property
     def supported_features(self):
         """Flag supported features."""
diff --git a/tests/components/zerproc/test_light.py b/tests/components/zerproc/test_light.py
index 6d2598ae5a6..871f91d447c 100644
--- a/tests/components/zerproc/test_light.py
+++ b/tests/components/zerproc/test_light.py
@@ -16,6 +16,7 @@ from homeassistant.components.zerproc.light import DOMAIN
 from homeassistant.const import (
     ATTR_ENTITY_ID,
     ATTR_FRIENDLY_NAME,
+    ATTR_ICON,
     ATTR_SUPPORTED_FEATURES,
     STATE_OFF,
     STATE_ON,
@@ -82,6 +83,7 @@ async def test_init(hass):
     assert state.attributes == {
         ATTR_FRIENDLY_NAME: "LEDBlue-CCDDEEFF",
         ATTR_SUPPORTED_FEATURES: SUPPORT_BRIGHTNESS | SUPPORT_COLOR,
+        ATTR_ICON: "mdi:string-lights",
     }
 
     state = hass.states.get("light.ledblue_33445566")
@@ -89,6 +91,7 @@ async def test_init(hass):
     assert state.attributes == {
         ATTR_FRIENDLY_NAME: "LEDBlue-33445566",
         ATTR_SUPPORTED_FEATURES: SUPPORT_BRIGHTNESS | SUPPORT_COLOR,
+        ATTR_ICON: "mdi:string-lights",
         ATTR_BRIGHTNESS: 255,
         ATTR_HS_COLOR: (221.176, 100.0),
         ATTR_RGB_COLOR: (0, 80, 255),
@@ -260,6 +263,7 @@ async def test_light_update(hass, mock_light):
     assert state.attributes == {
         ATTR_FRIENDLY_NAME: "LEDBlue-CCDDEEFF",
         ATTR_SUPPORTED_FEATURES: SUPPORT_BRIGHTNESS | SUPPORT_COLOR,
+        ATTR_ICON: "mdi:string-lights",
     }
 
     # Make sure no discovery calls are made while we emulate time passing
@@ -277,6 +281,7 @@ async def test_light_update(hass, mock_light):
         assert state.attributes == {
             ATTR_FRIENDLY_NAME: "LEDBlue-CCDDEEFF",
             ATTR_SUPPORTED_FEATURES: SUPPORT_BRIGHTNESS | SUPPORT_COLOR,
+            ATTR_ICON: "mdi:string-lights",
         }
 
         with patch.object(
@@ -293,6 +298,7 @@ async def test_light_update(hass, mock_light):
         assert state.attributes == {
             ATTR_FRIENDLY_NAME: "LEDBlue-CCDDEEFF",
             ATTR_SUPPORTED_FEATURES: SUPPORT_BRIGHTNESS | SUPPORT_COLOR,
+            ATTR_ICON: "mdi:string-lights",
         }
 
         with patch.object(
@@ -309,6 +315,7 @@ async def test_light_update(hass, mock_light):
         assert state.attributes == {
             ATTR_FRIENDLY_NAME: "LEDBlue-CCDDEEFF",
             ATTR_SUPPORTED_FEATURES: SUPPORT_BRIGHTNESS | SUPPORT_COLOR,
+            ATTR_ICON: "mdi:string-lights",
             ATTR_BRIGHTNESS: 220,
             ATTR_HS_COLOR: (261.429, 31.818),
             ATTR_RGB_COLOR: (202, 173, 255),