diff --git a/src/spore/core/ApiServer.cpp b/src/spore/core/ApiServer.cpp
index 5397ce3..767ceb6 100644
--- a/src/spore/core/ApiServer.cpp
+++ b/src/spore/core/ApiServer.cpp
@@ -109,7 +109,7 @@ void ApiServer::setupWebSocket() {
                 JsonDocument doc;
                 DeserializationError err = deserializeJson(doc, (const char*)data, len);
                 if (!err) {
-                    LOG_INFO("API", "Received event: " + String(doc["event"].as<String>()));
+                    LOG_DEBUG("API", "Received event: " + String(doc["event"].as<String>()));
                     String eventName = doc["event"].as<String>();
                     String payloadStr;
                     if (doc["payload"].is<const char*>()) {
diff --git a/src/spore/core/ClusterManager.cpp b/src/spore/core/ClusterManager.cpp
index 1d6e2e9..e86982e 100644
--- a/src/spore/core/ClusterManager.cpp
+++ b/src/spore/core/ClusterManager.cpp
@@ -19,7 +19,7 @@ ClusterManager::ClusterManager(NodeContext& ctx, TaskManager& taskMgr) : ctx(ctx
         IPAddress ip = WiFi.localIP();
         IPAddress mask = WiFi.subnetMask();
         IPAddress bcast(ip[0] | ~mask[0], ip[1] | ~mask[1], ip[2] | ~mask[2], ip[3] | ~mask[3]);
-        LOG_INFO("Cluster", String("Broadcasting CLUSTER_EVENT to ") + bcast.toString() + " len=" + String(jsonStr->length()));
+        LOG_DEBUG("Cluster", String("Broadcasting CLUSTER_EVENT to ") + bcast.toString() + " len=" + String(jsonStr->length()));
         this->ctx.udp->beginPacket(bcast, this->ctx.config.udp_port);
         String msg = String(ClusterProtocol::CLUSTER_EVENT_MSG) + ":" + *jsonStr;
         this->ctx.udp->write(msg.c_str());
@@ -204,7 +204,7 @@ void ClusterManager::onNodeInfo(const char* msg) {
                 }
             }
         } else {
-            LOG_DEBUG("Cluster", String("Failed to parse NODE_INFO JSON from ") + senderIP.toString());
+            LOG_WARN("Cluster", String("Failed to parse NODE_INFO JSON from ") + senderIP.toString());
         }
     }
 }
@@ -216,11 +216,11 @@ void ClusterManager::onClusterEvent(const char* msg) {
         LOG_DEBUG("Cluster", "CLUSTER_EVENT received with empty payload");
         return;
     }
-    LOG_INFO("Cluster", String("CLUSTER_EVENT raw from ") + ctx.udp->remoteIP().toString() + " len=" + String(strlen(jsonStart)));
+    LOG_DEBUG("Cluster", String("CLUSTER_EVENT raw from ") + ctx.udp->remoteIP().toString() + " len=" + String(strlen(jsonStart)));
     JsonDocument doc;
     DeserializationError err = deserializeJson(doc, jsonStart);
     if (err) {
-        LOG_DEBUG("Cluster", String("Failed to parse CLUSTER_EVENT JSON from ") + ctx.udp->remoteIP().toString());
+        LOG_ERROR("Cluster", String("Failed to parse CLUSTER_EVENT JSON from ") + ctx.udp->remoteIP().toString());
         return;
     }
     // Robust extraction of event and data
@@ -249,7 +249,7 @@ void ClusterManager::onClusterEvent(const char* msg) {
     }
 
     std::string eventKey(eventStr.c_str());
-    LOG_INFO("Cluster", String("Firing event '") + eventStr + "' with dataLen=" + String(data.length()));
+    LOG_DEBUG("Cluster", String("Firing event '") + eventStr + "' with dataLen=" + String(data.length()));
     ctx.fire(eventKey, &data);
 }
 
diff --git a/test/README b/test/README
index a065e60..6c9555f 100644
--- a/test/README
+++ b/test/README
@@ -48,3 +48,17 @@ Example:
 node test/ws-cluster-broadcast-color.js ws://10.0.1.53/ws
 ```
 
+### 4. WS Cluster Broadcast Rainbow (`test/ws-cluster-broadcast-rainbow.js`)
+
+Broadcasts a smooth rainbow color transition over WebSocket using `cluster/broadcast` and the `api/neopattern/color` event. Update rate defaults to `UPDATE_RATE` in the script (e.g., 100 ms).
+
+**Usage:**
+```
+node test/ws-cluster-broadcast-rainbow.js ws://<device-ip>/ws
+```
+Example:
+```
+node test/ws-cluster-broadcast-rainbow.js ws://10.0.1.53/ws
+```
+Note: Very fast update intervals (e.g., 10 ms) may saturate links or the device.
+
diff --git a/test/ws-cluster-broadcast-rainbow.js b/test/ws-cluster-broadcast-rainbow.js
new file mode 100644
index 0000000..f0c307f
--- /dev/null
+++ b/test/ws-cluster-broadcast-rainbow.js
@@ -0,0 +1,71 @@
+// WebSocket client to broadcast smooth rainbow color changes across the cluster
+// Usage: node ws-cluster-broadcast-rainbow.js ws://<device-ip>/ws
+
+const WebSocket = require('ws');
+
+const url = process.argv[2] || 'ws://127.0.0.1/ws';
+const ws = new WebSocket(url);
+
+function hsvToRgb(h, s, v) {
+  const c = v * s;
+  const x = c * (1 - Math.abs(((h / 60) % 2) - 1));
+  const m = v - c;
+  let r = 0, g = 0, b = 0;
+  if (h < 60) { r = c; g = x; b = 0; }
+  else if (h < 120) { r = x; g = c; b = 0; }
+  else if (h < 180) { r = 0; g = c; b = x; }
+  else if (h < 240) { r = 0; g = x; b = c; }
+  else if (h < 300) { r = x; g = 0; b = c; }
+  else { r = c; g = 0; b = x; }
+  const R = Math.round((r + m) * 255);
+  const G = Math.round((g + m) * 255);
+  const B = Math.round((b + m) * 255);
+  return { r: R, g: G, b: B };
+}
+
+function toHex({ r, g, b }) {
+  const h = (n) => n.toString(16).padStart(2, '0').toUpperCase();
+  return `#${h(r)}${h(g)}${h(b)}`;
+}
+
+let hue = 0;
+const SAT = 1.0;   // full saturation
+const VAL = 1.0;   // full value
+const BRIGHTNESS = 128;
+const UPDATE_RATE = 100; // 100 ms
+
+let timer = null;
+
+ws.on('open', () => {
+  console.log('Connected to', url);
+  // UPDATE_RATE ms updates (10 Hz). Be aware this can saturate slow links.
+  timer = setInterval(() => {
+    const rgb = hsvToRgb(hue, SAT, VAL);
+    const color = toHex(rgb);
+    const envelope = {
+      event: 'api/neopattern/color',
+      data: { color, brightness: BRIGHTNESS }
+    };
+    const msg = { event: 'cluster/broadcast', payload: envelope };
+    try {
+      ws.send(JSON.stringify(msg));
+    } catch (_) {}
+    hue = (hue + 2) % 360; // advance hue (adjust for speed)
+  }, UPDATE_RATE);
+});
+
+ws.on('message', (data) => {
+  // Optionally throttle logs: comment out for quieter output
+  // console.log('WS:', data.toString());
+});
+
+ws.on('error', (err) => {
+  console.error('WebSocket error:', err.message);
+});
+
+ws.on('close', () => {
+  if (timer) clearInterval(timer);
+  console.log('WebSocket closed');
+});
+
+