Redstone torches are a type of redstone component in the game Minecraft. They emit a constant redstone signal, making them useful for powering various devices and mechanisms. When placed on the ground or on the side of a block, they can activate nearby redstone circuits, allowing players to create complex contraptions. These torches can also be turned off by receiving power from another redstone source, such as a lever or button. This feature allows for more intricate designs, as players can control when the torch is active or inactive, adding versatility to their redstone creations.