Flare

Flares are small devices used to create a temporary bright light source or signal without exploding. In Deus Ex, many Flares can be found in the earlier parts of the game. These items are held in the inventory, and upon being used, fall to the ground and provide light for several seconds before dissipating. Flares become much rarer later in the game, and are less effective than the tech goggles, light and Vision Enhancement for lighting up areas, making them a hard item to use.