Windows 🟢 Beginner

How to Change Windows 11 Keyboard Backlight in Energy Saver

Written by

Richard

Jun 15, 2026 Updated Aug 14, 2026 2 min read

Close-up of a laptop keyboard with RGB backlighting showing keys QWERTY and surrounding keys illuminated in various colors.

The keyboard backlight dimming setting in Windows 11 controls how dark your keyboard lights get when Energy Saver turns on, which automatically drops the brightness to 70% to save battery power.

You can change this default setting to anywhere from 0% to 100% brightness so your keys stay easy to see in the dark without draining your laptop battery too fast.

⚡ Quick Answer

Change keyboard backlight brightness in Windows 11 Energy Saver mode by editing the Registry Editor. Navigate to 🗝️HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Lighting\Backlight, find or create BacklightEnergySaverMultiplier, and set its value to your desired percentage (0-100).

How to Change Keyboard Backlight Brightness in Energy Saver Mode

This adjustment requires the Windows Registry Editor, an advanced database for system configurations. This tool lets you change settings deep within Windows.

Step 1Open Registry Editor

First, open the Registry Editor. Search for “regedit” in the Windows search bar and press Enter.

Step 2Go to the Correct Location

Next, locate a specific folder within the Registry Editor. Click through the folders in the left-hand panel until you arrive at this path:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Lighting\Backlight

Step 3Find and Change the Setting

In the right-hand panel, look for a value named BacklightEnergySaverMultiplier. Double-click it to change its settings.

If the value isn't present, you'll need to create it. Right-click an empty space in the right panel, then select New > DWORD (32-bit) Value (this is a type of setting). Name it BacklightEnergySaverMultiplier and press Enter.

Step 4Set Your Desired Brightness Percentage

To set how bright your keyboard lights should be in Energy Saver mode, enter a number between 0 and 100 in a new window.

The default setting is 70.

Windows 11 Energy Saver mode keyboard backlight brightness setting percentage.

Click OK when you are done.

Step 5Close Registry Editor

The Registry Editor window can now be closed.

And that's it!

Reference:

https://learn.microsoft.com/en-us/windows-hardware/customize/desktop/unattend/microsoft-windows-devices-lights-configuration-backlightenergysavermultiplier

Summary

Your keyboard backlight brightness in Windows 11's Energy Saver mode can be changed by adjusting a setting in the Registry Editor.

How to change energy saver settings on 🪟 Windows 11?

Select Start > Settings > System > Power & battery. Under Power mode, choose the option you want for Plugged in or On Battery: Best power efficiency - Saves battery life. Balanced - Balances performance and battery. Best performance - Maximizes performance.

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Tags: #Windows 11

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About the Author

Richard

Tech Writer, IT Professional

Richard, a writer for Geek Rewind, is a tech enthusiast who loves breaking down complex IT topics into simple, easy-to-understand ideas. With years of hands-on experience in system administration and enterprise IT operations, he’s developed a knack for offering practical tips and solutions. Richard aims to make technology more accessible and actionable. He's deeply committed to the Geek Rewind community, always ready to answer questions and engage in discussions.

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