diff --git a/assets/scripts/FlashLightCtrlComponent.ts b/assets/scripts/FlashLightCtrlComponent.ts
index 8fb6222..c87e830 100644
--- a/assets/scripts/FlashLightCtrlComponent.ts
+++ b/assets/scripts/FlashLightCtrlComponent.ts
@@ -76,7 +76,7 @@ export class FlashLightUBO {
     lightAngle: number = 45;
 
     /**
-     * 光束宽度 [0.0, 1.0]
+     * 光束宽度 [0.0, +∞]
      */
     lightWidth: number = 0.5;