---
title: "LED and LCD"
slug: "led-lcd-setting"
updated: 2025-07-01T03:42:57Z
published: 2025-07-01T03:42:57Z
canonical: "knowledge.akuvox.com/led-lcd-setting"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://knowledge.akuvox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# LED and LCD

## Card Reader LED Control

You can enable or disable the LED lighting on the card reader area. You can also set a specific time to turn on the light.

To set it up, go to the **Device > Light > LED Of Swiping Card Area** interface.

![](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/image-WUVNC263.png)

- **Start Time- End Time (Hour):** Enter the period for the LED lighting to be valid, e.g., if the period is from **18-22**, it means the LED light will stay on from **6:00 pm** to **10:00 pm** during one day (24 hours).

## LED White Light

The white light is mainly used to reinforce the lighting for QR code access and for greater visibility of visitors when seeing their images from indoors in a dark environment.

To set it up, go to **Device > Light > White Light** interface.

![图片.png](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/%E5%9B%BE%E7%89%87-CR4CMFRS.png)

- **Mode**:
  - **Auto**: The white light will be turned on automatically for facial recognition and QR code scanning.
  - **OFF**: Disable the function.
- **Max White Light Value**: Set the white light value from 1-5, and the default white light value is **3**. The greater the value it is, the brighter the light will be.

## LCD Screen Brightness

You can set up the backlight brightness so that users can better see the screen in an environment with high or low light intensity.

Set it up on the **Device > Light** interface.

![](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/image-PE7XNGMN.png)

- **Backlight Brightness**: The default is 200. The higher the value, the brighter the screen is.

You can also set it up on the **Display&Sounds > Backlight** screen.

![图片.png](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/%E5%9B%BE%E7%89%87%28493%29.png)