diff --git a/homeassistant/components/smartthings/select.py b/homeassistant/components/smartthings/select.py
index 99dc7a09f87..3106aba5e49 100644
--- a/homeassistant/components/smartthings/select.py
+++ b/homeassistant/components/smartthings/select.py
@@ -18,6 +18,11 @@ from .entity import SmartThingsEntity
 
 LAMP_TO_HA = {
     "extraHigh": "extra_high",
+    "high": "high",
+    "mid": "mid",
+    "low": "low",
+    "on": "on",
+    "off": "off",
 }
 
 WASHER_SOIL_LEVEL_TO_HA = {
diff --git a/tests/components/smartthings/snapshots/test_select.ambr b/tests/components/smartthings/snapshots/test_select.ambr
index 8950846ba21..d36132cc1ef 100644
--- a/tests/components/smartthings/snapshots/test_select.ambr
+++ b/tests/components/smartthings/snapshots/test_select.ambr
@@ -55,7 +55,7 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': 'unknown',
+    'state': 'off',
   })
 # ---
 # name: test_all_entities[da_ks_oven_01061][select.oven_lamp-entry]
@@ -112,7 +112,7 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': 'unknown',
+    'state': 'high',
   })
 # ---
 # name: test_all_entities[da_ks_range_0101x][select.vulcan_lamp-entry]
@@ -226,7 +226,7 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': 'unknown',
+    'state': 'on',
   })
 # ---
 # name: test_all_entities[da_wm_dw_000001][select.dishwasher-entry]