Acquire a torch: Find torches in various locations throughout the game world, such as chests, corpses, shops, or carried by characters or enemies.
Open your inventory: Press the I key or click on the backpack icon to open your inventory.
Locate the torch: Look for the torch item in your inventory, listed with its name and an image.
Equip the torch: Click and drag the torch item to the appropriate equipment slot in your character’s inventory, typically the off-hand slot on the left side of the character’s portrait.
Light the torch: Once equipped, a small flame icon appears next to your character’s portrait. Right-click the torch icon and select Light from the context menu. Alternatively, click the torch icon and then click the Light button.
Extinguish the torch: To extinguish the torch, follow the same steps as above, but select Extinguish instead of Light.