Vault lamp

The  is a type of lamp, or light, used in Vault-Tec Vaults for illumination. The lamp is enclosed within a opaque white plastic housing with a metal base. Lamp's housing is contained and protected by a metal wire cage. These lamps are positioned at the topmost portion of the wall panels in a corridor segment or on the ceilings of a room. In a typical room, they are placed two in a row and along both sides of the ceiling. Larger rooms, for example the Cafeteria, have more lamps.

History of Lamps in Vault 101
In 2259, the Lone Wanderer's father reassures his young child that they will grow accustom to the bright light of the lamps in Vault 101.

On July 13, 2268, the lamps in the Cafeteria are turned off in anticipation of the Lone Wanderer's arrival at a surprise tenth birthday party. When the Lone Wanderer walks into the darkened room, they are momentarily blinded when the lights are turn on by Stanley Armstrong. Officer Herman Gomez jokingly teases Mr. Armstrong that he may blind the child. The Lone Wanderer regains their vision to see a room decked out in birthday party decorations.