SignalRGB gives you three independent levels of brightness control. This guide walks you through adjusting each one to get the right look across your entire setup.

## Before You Start

Make sure you have:
- SignalRGB installed and running
- At least one device detected and visible on the Devices page


## Adjust Global Brightness

Global Brightness is the master control for your entire setup. Changing it affects all devices at once.

1. Locate the brightness slider in the bottom-right corner of the app window
2. Drag the slider left to decrease brightness or right to increase it

![Brightness setting in the bottom-right corner of the app](/images/12-brightness-setting-bottom-right.png)

All connected devices update immediately to reflect the new brightness level.

## Adjust Layout Brightness

Layout Brightness is saved with your layout. Each layout can have its own brightness level, loaded automatically when that layout is active.

Layout Brightness can be adjusted in two places:

**From the Lighting tab:**
1. Open the **Lighting** tab
2. Click **Layout** in the top-right corner (next to **Effect**)
3. Adjust the Layout Brightness underneath the canvas

**From the Global Brightness slider:**
1. Locate the brightness slider in the bottom-right corner of the app window
2. Adjust the Layout Brightness slider directly below it

The brightness updates for all devices in the current layout.

## Adjust Device Brightness

Device Brightness lets you fine-tune individual devices relative to each other. Use this when one device is noticeably brighter or dimmer than the rest of your setup.

1. Click the **Devices** tab in the left sidebar
2. Select the device you want to adjust
3. Locate the brightness control for that device
4. Adjust the slider to your preferred level

Only the selected device updates. All other devices remain unchanged.

## Tips and Best Practices

- Brightness settings are multiplicative. A Global Brightness of 50% and a Layout Brightness of 50% results in 25% effective brightness on your devices. If your setup looks dimmer than expected, check all three levels.
- Use Layout Brightness to create purpose-built layouts, such as a bright layout for gaming and a dimmed layout for movies, without touching your device settings.
- Use Device Brightness to balance devices that use different LED types, which can appear at different intensities even at the same brightness setting.

## Troubleshooting

**Devices look dimmer than expected:** Check all three brightness levels. If any one is set low, it reduces the effective brightness of your entire setup.

**One device is much brighter than the rest:** Adjust that device's individual Device Brightness from the Devices page.

**Changing Global Brightness has no effect:** Verify that Layout Brightness and Device Brightness are not set to 0%.

## Related Articles

- [How to Create a Layout](/guides/device-configuration/how-to-create-a-layout.md)
- [How to Configure RGB Controllers](/guides/device-configuration/configure-rgb-controllers.md)

Need more help? [Contact Customer Support](/troubleshooting/advanced-troubleshooting/when-to-contact-support.md)