diff --git a/src/reactions/index.ts b/src/reactions/index.ts
index 9138f10d..308754a5 100644
--- a/src/reactions/index.ts
+++ b/src/reactions/index.ts
@@ -1,5 +1,7 @@
 import dogSoundOgg from "../sound/reactions/dog.ogg?url";
 import dogSoundMp3 from "../sound/reactions/dog.mp3?url";
+import lightbulbOgg from "../sound/reactions/lightbulb.mp3?url";
+import lightbulbMp3 from "../sound/reactions/lightbulb.mp3?url";
 import { RelationType } from "matrix-js-sdk/src/types";
 
 export interface ReactionOption {
@@ -71,4 +73,13 @@ export const ReactionSet: ReactionOption[] = [
     name: "ok",
     alias: ["okay", "cool"],
   },
+  {
+    emoji: "💡",
+    name: "lightbulb",
+    alias: ["bulb", "light", "idea", "ping"],
+    sound: {
+      ogg: lightbulbOgg,
+      mp3: lightbulbMp3,
+    },
+  },
 ];
diff --git a/src/sound/reactions/lightbulb.mp3 b/src/sound/reactions/lightbulb.mp3
new file mode 100644
index 00000000..a6743712
Binary files /dev/null and b/src/sound/reactions/lightbulb.mp3 differ
diff --git a/src/sound/reactions/lightbulb.ogg b/src/sound/reactions/lightbulb.ogg
new file mode 100644
index 00000000..7283ac61
Binary files /dev/null and b/src/sound/reactions/lightbulb.ogg differ