Dark-Light Device

The Dark-Light Device is one of E. Gadd's inventions and it is used by Luigi in the game Luigi's Mansion: Dark Moon.

Usage
The Dark-Light Device is mainly used to uncover hidden/invisible objects. This can cast a rainbow-like light that can reveal enemies called Spirit Balls which Luigi then can use the Poltergust 5000 to vaccum them up. The Dark-Light Device is also used to help capture Boos, find tracks leading to the Polterpup, and to aid in fight with certain ghosts (such as Sneakers). It can also reveal coins and even Toad Assistants in paintings Luigi first aquires the Lab of Gloomy Manor during the fourth mission A-4: Visual Tracks.