The DualShock 4's light bar is a neat thing. It works with many games to mimic what's happening on the screen---in The Last of Us, for example, it will change colors as your health degrades, and turn red as you die. It's a little thing, but it's cool. The downside is that it's also a battery hog, causing the controller to die much quicker than most of us would like. Thankfully, you can dim it.

Related: How to Connect a Mouse and Keyboard to Your PlayStation 4

To get started, head into your PlayStation's Settings menu. This is denoted by the little suitcase icon.

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From the main Settings screen, scroll down until you see "Devices" and jump in there.

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Then choose "Controllers."

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The last option in this menu is "Brightness of DUALSHOCK 4 Light Bar." That's wshat you're looking for.

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It's set to Bright by default, but there are two other options available: Medium and Dim.

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To get the most out of your battery, select "Dim," which will drop the brightness level quite a bit---but it doesn't really remove any of the functionality. If you like the default brightness and are just looking to squeeze a little more life before having to toss the controller on the charger, however, give Medium a go---it's a good balance between brightness and battery life.

To confirm your selection, just tap X.

That's really all there is to it. This will apply to the currently-connected controller, but it's also profile-specific. So if you like the controller dim, but someone else who shares your PS4 wants all the brightness all the time, there won't be any issues.