diff --git a/package/czechlight-clearfog-leds/clearfog-test-leds.sh b/package/czechlight-clearfog-leds/clearfog-test-leds.sh
new file mode 100755
index 0000000..0b228e2
--- /dev/null
+++ b/package/czechlight-clearfog-leds/clearfog-test-leds.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+LEDS=(NONE status:{red,green,blue} uid:{red,green,blue} line:{red,green,blue} sfp:{red,green,blue})
+
+LAST=${#LEDS[@]}
+let "LAST2 = $LAST - 1"
+echo $LAST2
+
+for NUM in $(seq 1 ${LAST}); do
+    let "PREVIOUS = $NUM - 1"
+    if [[ $PREVIOUS -ne NONE ]]; then
+        echo 0 > "/sys/class/leds/${LEDS[$PREVIOUS]}/brightness"
+    fi
+    if [[ $NUM -ne $LAST ]]; then
+        echo 255 > "/sys/class/leds/${LEDS[$NUM]}/brightness"
+    fi
+    sleep 0.3
+done