Luminous

The Luminous buff is a beneficial bonus to a player's personal light radius. The Luminous buff can be granted to the player by consuming a Potion of Light and boosts the player's personal light radius by +10 for its duration, casting a larger sphere of light around the player without the need to hold a torch.

Used By
While a number of accessories can boost the player's personal light radius, only the Potion of Light grants the Luminous buff specifically.