What is fallout 4 pip boy light?

The Pip-Boy light in Fallout 4 is a feature that allows the player to illuminate the screen of the Pip-Boy device. It is useful in dark areas or at night, as it can help the player see the contents of their Pip-Boy more clearly. To activate the light, the player can press and hold the Pip-Boy button on their controller or keyboard. The light will remain on until the button is released. Additionally, the brightness of the light can be adjusted in the game's settings. Some players also mod their Pip-Boy to add more powerful lights or different colors to the display.