diff --git a/README.md b/README.md
index 89e4f630..3b13f719 100644
--- a/README.md
+++ b/README.md
@@ -148,6 +148,7 @@ or the `parse_pcap.py` script contained inside the `devtools` directory.
 
 ### Light strips
 
+* KL400
 * KL430
 
 **Contributions (be it adding missing features, fixing bugs or improving documentation) are more than welcome, feel free to submit pull requests!**
diff --git a/kasa/tests/conftest.py b/kasa/tests/conftest.py
index a10be415..14229215 100644
--- a/kasa/tests/conftest.py
+++ b/kasa/tests/conftest.py
@@ -25,10 +25,19 @@ SUPPORTED_DEVICES = glob.glob(
 )
 
 
-LIGHT_STRIPS = {"KL430"}
-VARIABLE_TEMP = {"LB120", "LB130", "KL120", "KL125", "KL130", "KL430", *LIGHT_STRIPS}
+LIGHT_STRIPS = {"KL400", "KL430"}
+VARIABLE_TEMP = {"LB120", "LB130", "KL120", "KL125", "KL130", "KL430"}
 COLOR_BULBS = {"LB130", "KL125", "KL130", *LIGHT_STRIPS}
-BULBS = {"KL60", "LB100", "LB110", "KL110", *VARIABLE_TEMP, *COLOR_BULBS, *LIGHT_STRIPS}
+BULBS = {
+    "KL50",
+    "KL60",
+    "LB100",
+    "LB110",
+    "KL110",
+    *VARIABLE_TEMP,
+    *COLOR_BULBS,
+    *LIGHT_STRIPS,
+}
 
 
 PLUGS = {"HS100", "HS103", "HS105", "HS110", "HS200", "HS210", "EP10", "KP115"}
diff --git a/kasa/tests/fixtures/KL400L5(US)_1.0_1.0.5.json b/kasa/tests/fixtures/KL400L5(US)_1.0_1.0.5.json
new file mode 100644
index 00000000..64adf555
--- /dev/null
+++ b/kasa/tests/fixtures/KL400L5(US)_1.0_1.0.5.json
@@ -0,0 +1,57 @@
+{
+    "smartlife.iot.common.emeter": {
+        "get_realtime": {
+            "err_code": 0,
+            "power_mw": 10800,
+            "total_wh": 0
+        }
+    },
+    "system": {
+        "get_sysinfo": {
+            "LEF": 0,
+            "active_mode": "none",
+            "alias": "Kl400",
+            "ctrl_protocols": {
+                "name": "Linkie",
+                "version": "1.0"
+            },
+            "description": "Kasa Smart Light Strip, Multicolor",
+            "dev_state": "normal",
+            "deviceId": "0000000000000000000000000000000000000000",
+            "disco_ver": "1.0",
+            "err_code": 0,
+            "hwId": "00000000000000000000000000000000",
+            "hw_ver": "1.0",
+            "is_color": 1,
+            "is_dimmable": 1,
+            "is_factory": false,
+            "is_variable_color_temp": 0,
+            "latitude_i": 0,
+            "length": 16,
+            "light_state": {
+                "brightness": 100,
+                "color_temp": 6500,
+                "hue": 0,
+                "mode": "normal",
+                "on_off": 1,
+                "saturation": 0
+            },
+            "lighting_effect_state": {
+                "brightness": 50,
+                "custom": 0,
+                "enable": 0,
+                "id": "",
+                "name": "station"
+            },
+            "longitude_i": 0,
+            "mic_mac": "00:00:00:00:00:00",
+            "mic_type": "IOT.SMARTBULB",
+            "model": "KL400L5(US)",
+            "oemId": "00000000000000000000000000000000",
+            "preferred_state": [],
+            "rssi": -58,
+            "status": "new",
+            "sw_ver": "1.0.5 Build 210616 Rel.122727"
+        }
+    }
+}
diff --git a/kasa/tests/fixtures/KL50(US)_1.0_1.1.13.json b/kasa/tests/fixtures/KL50(US)_1.0_1.1.13.json
new file mode 100644
index 00000000..f3e43c9a
--- /dev/null
+++ b/kasa/tests/fixtures/KL50(US)_1.0_1.1.13.json
@@ -0,0 +1,90 @@
+{
+    "smartlife.iot.common.emeter": {
+        "get_realtime": {
+            "current_ma": 0,
+            "err_code": 0,
+            "power_mw": 998,
+            "total_wh": 1,
+            "voltage_mv": 0
+        }
+    },
+    "smartlife.iot.smartbulb.lightingservice": {
+        "get_light_state": {
+            "brightness": 12,
+            "color_temp": 2700,
+            "err_code": 0,
+            "hue": 0,
+            "mode": "normal",
+            "on_off": 1,
+            "saturation": 0
+        }
+    },
+    "system": {
+        "get_sysinfo": {
+            "active_mode": "none",
+            "alias": "Kl50",
+            "ctrl_protocols": {
+                "name": "Linkie",
+                "version": "1.0"
+            },
+            "description": "Kasa Smart Edison Bulb, Dimmable",
+            "dev_state": "normal",
+            "deviceId": "0000000000000000000000000000000000000000",
+            "disco_ver": "1.0",
+            "err_code": 0,
+            "hwId": "00000000000000000000000000000000",
+            "hw_ver": "1.0",
+            "is_color": 0,
+            "is_dimmable": 1,
+            "is_factory": false,
+            "is_variable_color_temp": 0,
+            "latitude_i": 0,
+            "light_state": {
+                "brightness": 12,
+                "color_temp": 2700,
+                "hue": 0,
+                "mode": "normal",
+                "on_off": 1,
+                "saturation": 0
+            },
+            "longitude_i": 0,
+            "mic_mac": "000000000000",
+            "mic_type": "IOT.SMARTBULB",
+            "model": "KL50(US)",
+            "oemId": "00000000000000000000000000000000",
+            "preferred_state": [
+                {
+                    "brightness": 100,
+                    "color_temp": 2700,
+                    "hue": 0,
+                    "index": 0,
+                    "saturation": 0
+                },
+                {
+                    "brightness": 75,
+                    "color_temp": 2700,
+                    "hue": 0,
+                    "index": 1,
+                    "saturation": 0
+                },
+                {
+                    "brightness": 25,
+                    "color_temp": 2700,
+                    "hue": 0,
+                    "index": 2,
+                    "saturation": 0
+                },
+                {
+                    "brightness": 1,
+                    "color_temp": 2700,
+                    "hue": 0,
+                    "index": 3,
+                    "saturation": 0
+                }
+            ],
+            "rssi": -68,
+            "status": "new",
+            "sw_ver": "1.1.13 Build 210524 Rel.082619"
+        }
+    }
+}