diff --git a/apps/abstraction/vendors/hottis_wifi_relay.py b/apps/abstraction/vendors/hottis_wifi_relay.py
index 77c0c30..bdabd0a 100644
--- a/apps/abstraction/vendors/hottis_wifi_relay.py
+++ b/apps/abstraction/vendors/hottis_wifi_relay.py
@@ -1,4 +1,4 @@
-"""Shelly vendor transformations."""
+"""Hottis WiFi Relay vendor transformations."""
 
 import logging
 from typing import Any
@@ -7,28 +7,28 @@ logger = logging.getLogger(__name__)
 
 
 def transform_relay_to_vendor(payload: dict[str, Any]) -> str:
-    """Transform abstract relay payload to Shelly format.
+    """Transform abstract relay payload to Hottis WiFi Relay format.
     
-    Shelly expects plain text 'on' or 'off' (not JSON).
+    Hottis WiFi Relay expects plain text 'on' or 'off' (not JSON).
     
     Example:
     - Abstract: {'power': 'on'}
-    - Shelly: 'on'
+    - Hottis WiFi Relay: 'ON'
     """
-    power = payload.get("power", "off")
+    power = payload.get("power", "off").upper()
     return power
 
 
 def transform_relay_to_abstract(payload: str) -> dict[str, Any]:
-    """Transform Shelly relay payload to abstract format.
+    """Transform Hottis WiFi Relay relay payload to abstract format.
     
-    Shelly sends plain text 'on' or 'off'.
+    Hottis WiFi Relay sends plain text 'on' or 'off'.
     
     Example:
-    - Shelly: 'on'
+    - Hottis WiFi Relay: 'ON'
     - Abstract: {'power': 'on'}
     """
-    return {"power": payload.strip()}
+    return {"power": payload.strip().lower()}
 
 
 # Registry of handlers for this vendor