# Verkada Wireless Lock LED Patterns

The AL54 has an LED bar on the top of the exterior module and three LEDs on the top of the interior module. These indicators utilize colors and flash patterns to display lock states and activities, enabling you to quickly understand the device’s status.

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## Exterior LEDs

### Access granted

When a credential is presented and access is granted, the exterior LED lights up green for the duration of the door unlock.

<div align="left"><img src="/files/cDMs6kaxm8FTd37BzeKM" alt="" width="107"></div>

### Access denied

When a credential is presented and access is denied, the exterior LED will briefly illuminate red.

<div align="left"><img src="/files/NCYTvml2TdMF9m6CPXgP" alt="" width="107"></div>

### Connection lost during scan attempt

If a credential is presented while the connection to the hub is lost, the exterior LED briefly lights white. In this case, present your credential again.

<div align="left"><img src="/files/ppjvRdJcDILPBIRr0y8v" alt="" width="107"></div>

### Wake button (exterior flash white twice)

Pressing the wake button at the bottom of the exterior module causes the exterior LED to flash white twice, indicating the sensor has been activated.

<div align="left"><img src="/files/43rBD6EXMgocj2nyy2Rn" alt="" width="107"></div>

### Emergency locked

When the lock is locked during an [emergency scenario](/access-control/integrations-and-alerts/configure-access-control-event-alerts/emergency-lockdown.md), both the interior and exterior LEDs rapidly flash red.

<div align="left"><img src="/files/lQqIvtlypnVCYSCfFqbe" alt="" width="107"></div>

### Emergency unlocked

When the lock is unlocked during an [emergency scenario](/access-control/integrations-and-alerts/configure-access-control-event-alerts/emergency-lockdown.md), both the interior and exterior LEDs rapidly flash green.

<div align="left"><figure><img src="/files/IX6M8MM5on2mNVpEia1J" alt="" width="107"><figcaption></figcaption></figure></div>

### Double badge - schedule to unlocked

When double-badging to switch from the current schedule to unlocked, the exterior LED flashes green three times.

<div align="left"><img src="/files/FqXWESwA5ld5zhrndzKt" alt="" width="107"></div>

### Double badge - unlocked to schedule

When double-badging to switch from locked to the current schedule, the exterior LED flashes red three times.

<div align="left"><img src="/files/yfBW98OfeFctRHjiq7A2" alt="" width="107"></div>

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## Interior LEDs

### Connecting to the hub for the first time

When the lock is powered on, the interior LED cascades white until it connects to a hub. Once connected, all three LEDs illuminate white simultaneously.

<div align="left"><img src="/files/nPFaPlKBANd9oNt3xGNm" alt="" width="109"></div>

### Persistent interior lock state indication

When the lock is in an access-controlled or locked state, the middle interior LED will blink red every 20 seconds. When the lock is unlocked, the middle interior LED will blink green every 20 seconds.

<div align="left"><figure><img src="/files/u5nXm9tvkrCjG2tZrkRr" alt="" width="109"><figcaption></figcaption></figure> <figure><img src="/files/zzrK5jQMonypNCZ3KKRW" alt="" width="109"><figcaption></figcaption></figure></div>

### Internal button (unlock mode)

When the *Internal Button Function* is set to *Unlock Mode*, pressing the internal button toggles the lock between the current schedule and an unlocked state. When toggled to unlocked, the internal LEDs illuminate green. When toggled back to the current schedule, the internal LEDs illuminate red.

<div align="left"><img src="/files/b2NgD12kdfa66RpZBBEi" alt="" width="109"></div>

### Internal button (privacy mode)

When the *Internal Button Function* is set to *Privacy Mode*, pressing the internal button places the door in a privacy state, locking it to all users except those in override groups. While in this state, both the interior and exterior LEDs illuminate red.

<div align="left"><img src="/files/plU1yfiYX6jydpXQSChL" alt="" width="109"></div>


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