diff --git a/core/java/android/hardware/camera2/CameraCharacteristics.java b/core/java/android/hardware/camera2/CameraCharacteristics.java
index dac55ae084489..8db298ff8a85e 100644
--- a/core/java/android/hardware/camera2/CameraCharacteristics.java
+++ b/core/java/android/hardware/camera2/CameraCharacteristics.java
@@ -1325,7 +1325,8 @@ public final class CameraCharacteristics extends CameraMetadata<CameraCharacteri
      * flashlight brightness level via
      * {@link android.hardware.camera2.CameraManager#turnOnTorchWithStrengthLevel }.
      * If this value is equal to 1, flashlight brightness control is not supported.
-     * The value for this key will be null for devices with no flash unit.</p>
+     * The value for this key will be null for devices with no flash unit.
+     * This level must be set to a safe value to prevent any burn out issues.</p>
      * <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p>
      */
     @PublicKey