1# Screen Brightness<a name="EN-US_TOPIC_0000001162494637"></a> 2 3- [Modules to Import](#en-us_topic_0000001101127828_s56d19203690d4782bfc74069abb6bd71) 4- [Functions](#en-us_topic_0000001101127828_section1998783153219) 5- [setValue\(value: number\)](#en-us_topic_0000001101127828_section1853612361618) 6 7## Modules to Import<a name="en-us_topic_0000001101127828_s56d19203690d4782bfc74069abb6bd71"></a> 8 9``` 10import brightness from '@ohos.brightness.d.ts'. 11``` 12 13## Functions<a name="en-us_topic_0000001101127828_section1998783153219"></a> 14 15## setValue\(value: number\)<a name="en-us_topic_0000001101127828_section1853612361618"></a> 16 17Sets the screen brightness. 18 19**Parameters** 20 21<a name="en-us_topic_0000001101127828_table888613685714"></a> 22<table><thead align="left"><tr id="en-us_topic_0000001101127828_row1988683685713"><th class="cellrowborder" valign="top" width="11.03%" id="mcps1.1.5.1.1"><p id="en-us_topic_0000001101127828_p1488693625712"><a name="en-us_topic_0000001101127828_p1488693625712"></a><a name="en-us_topic_0000001101127828_p1488693625712"></a>Name</p> 23</th> 24<th class="cellrowborder" valign="top" width="11.64%" id="mcps1.1.5.1.2"><p id="en-us_topic_0000001101127828_p1886173613571"><a name="en-us_topic_0000001101127828_p1886173613571"></a><a name="en-us_topic_0000001101127828_p1886173613571"></a>Type</p> 25</th> 26<th class="cellrowborder" valign="top" width="7.1499999999999995%" id="mcps1.1.5.1.3"><p id="en-us_topic_0000001101127828_p128861336155714"><a name="en-us_topic_0000001101127828_p128861336155714"></a><a name="en-us_topic_0000001101127828_p128861336155714"></a>Mandatory</p> 27</th> 28<th class="cellrowborder" valign="top" width="70.17999999999999%" id="mcps1.1.5.1.4"><p id="en-us_topic_0000001101127828_p3886143617571"><a name="en-us_topic_0000001101127828_p3886143617571"></a><a name="en-us_topic_0000001101127828_p3886143617571"></a>Description</p> 29</th> 30</tr> 31</thead> 32<tbody><tr id="en-us_topic_0000001101127828_row9886133613577"><td class="cellrowborder" valign="top" width="11.03%" headers="mcps1.1.5.1.1 "><p id="en-us_topic_0000001101127828_p14886163695720"><a name="en-us_topic_0000001101127828_p14886163695720"></a><a name="en-us_topic_0000001101127828_p14886163695720"></a>value</p> 33</td> 34<td class="cellrowborder" valign="top" width="11.64%" headers="mcps1.1.5.1.2 "><p id="en-us_topic_0000001101127828_p9886123605716"><a name="en-us_topic_0000001101127828_p9886123605716"></a><a name="en-us_topic_0000001101127828_p9886123605716"></a>number</p> 35</td> 36<td class="cellrowborder" valign="top" width="7.1499999999999995%" headers="mcps1.1.5.1.3 "><p id="en-us_topic_0000001101127828_p988723618577"><a name="en-us_topic_0000001101127828_p988723618577"></a><a name="en-us_topic_0000001101127828_p988723618577"></a>Yes</p> 37</td> 38<td class="cellrowborder" valign="top" width="70.17999999999999%" headers="mcps1.1.5.1.4 "><p id="en-us_topic_0000001101127828_p2512184017289"><a name="en-us_topic_0000001101127828_p2512184017289"></a><a name="en-us_topic_0000001101127828_p2512184017289"></a>Brightness value, ranging from 0 to 255</p> 39</td> 40</tr> 41</tbody> 42</table> 43 44**Return Values** 45 46None 47 48- Example 49 50 ``` 51 import brightness from '@ohos.brightness.d.ts' 52 brightness.setValue(128); 53 ``` 54 55 56