---
title: BRW / BRS (Display brightness)
description: "![](https://faqdoc.info/wp-content/uploads/2026/01/Matrix_55__icon_Elektro-Wasser.png) **BRW**: Display brightness during operation Setting range 10 … 100 %, default 20 % **BRS**: Display brightness when the device is not in use Einstellbereich 10 … 100 %, Standard 20 % **HINWEIS** The maximum brightness of the display…"
url: "https://faqdoc.info/en/systemauswahl/alpha-direct-en/alpha-direct-thermostat-55-matrix/brw-brs/"
updated: "2026-09-30"
category: Alpha direct thermostat 55 Matrix
---

# BRW / BRS (Display brightness)

![](https://faqdoc.info/wp-content/uploads/2026/01/Matrix_55__icon_Elektro-Wasser.png)

**BRW**: Display brightness during operation
Setting range 10 … 100 %, default 20 %

**BRS**: Display brightness when the device is not in use
Einstellbereich 10 … 100 %, Standard 20 %

**HINWEIS**
The maximum brightness of the display when the device is not in use (BRS) corresponds to only 10% of the brightness of the display during operation.