Redstone Torch

Redstone Torch

Transparency	Yes
Luminance	Yes, 7 (when on)
Blast resistance	?
Tool	Any tool
Renewable	Yes
Stackable	Yes (64)
Flammable	No
Drops	Itself
Data values	See Data values
Name	See Data values

This article is about the torch. For other topics related to redstone, see Redstone (disambiguation).

A redstone torch is a non-solid block that can be used as an invertible redstone power source.

Obtaining

Redstone torches can be broken instantly using anything, and drop themselves as an item. To remove a redstone torch, use the attack control button .

A redstone torch will also be removed and drop itself as an item:

• if its attachment block is moved, removed, or destroyed
• if water flows into its space
• if a piston tries to push it or moves a block into its space

If lava flows into a redstone torch's space, the redstone torch will be destroyed (burned) without dropping itself as an item.

Crafting

Ingredients	Crafting recipe
Redstone + Stick

Natural generation

Redstone torches can be found in igloos.

Usage

Redstone torches can be used as crafting ingredients or redstone components.

Crafting ingredient

Redstone torches can be used to craft activator rails, redstone comparators, and redstone repeaters.

Name	Ingredients	Crafting recipe
Activator Rail	Iron Ingot + Stick + Redstone Torch	6
Redstone Comparator	Redstone Torch + Nether Quartz + Stone
Redstone Repeater	Redstone Torch + Redstone + Stone

Redstone component

See also: Redstone circuit

Redstone torches can be used to power blocks and transmission components such as redstone dust, activate mechanism components such as pistons, or invert redstone signals like a NOT Gate.

Placement

Examples of redstone torch placement and behavior.

To place a redstone torch, use the Place Block control while aiming at the surface to which the redstone torch should be attached.

A redstone torch can be attached to:

• the top or side of any full solid opaque block (stone, dirt, blocks of gold, etc.), including full-block mechanism components (command blocks, dispensers, droppers, note blocks, and redstone lamps)
• the top only of a hopper, cobblestone wall, fence, glass, nether brick fence, an upside-down slab, or upside-down stairs

Redstone torches cannot be attached to the bottoms of any blocks.

Attempting to attach a redstone torch to an invalid surface can cause it to "snap" to a valid surface adjacent to the same space. For example, if a fence is on the ground, attempting to attach a redstone torch to the side of the fence will cause the redstone torch to be attached to the top of the ground next to the fence instead.

See also: Torch placement

Activation

A redstone torch is active unless the block it is attached to is powered. Effectively, a redstone torch inverts the signal applied to its attachment block: power level 0 is changed to 15 and power levels 1 to 15 are changed to 0 (for an alternative that produces a greater range of output power levels, consider a redstone comparator in subtraction mode).

Walls, fences, glass, slabs, and stairs cannot be powered so redstone torches attached to them cannot be deactivated. Hoppers can be activated but cannot be powered (in the sense that they would power redstone dust next to them), so redstone torches attached to hoppers also cannot be deactivated.

A redstone torch takes 1 redstone tick (2 game ticks, or 0.1 seconds barring lag) to change state and won't change state unless the signal change to its attachment block is at least 1.5 redstone ticks long (unless the change is caused by the redstone torch itself in a "short-circuit"). For example, a redstone torch won't turn off if its attachment block receives a 1-tick or shorter pulse.

Behavior

While active, a redstone torch:

• powers adjacent redstone dust to power level 15, including beneath the redstone torch if it is attached to the side of a block
• powers adjacent redstone comparators or redstone repeaters facing away from the redstone torch to power level 15
• strongly powers a full solid opaque block above the redstone torch to power level 15 (but not next to or below it)
• activates adjacent mechanism components, including above or below, such as pistons, redstone lamps, etc.
• produces "reddust" particles

A redstone torch never affects the block it is attached to, even if it is a mechanism component. For example, a redstone torch attached to a redstone lamp will not activate the lamp.

A redstone torch will "burn-out" when it is forced to change state (by powering and de-powering the block it's attached to) more than eight times in 60 game ticks (three seconds, barring lag). After burning-out, a redstone torch will produce a "smoke" particle and a hiss similar to an extinguished fire, deactivate, and will then ignore attempts to change its state until the number of state changes in the last 60 game ticks drops to fewer than eight — after that it will re-activate when it receives a block update (an adjacent block changing its state) or a redstone update which wouldn't normally deactivate the redstone torch. There is no limit on how often a single redstone torch can burn out.

Data values

A redstone torch is defined by its ID and block data. A redstone torch also has a block state which is expected to replace the functionality of block data in a future version.

ID

A redstone torch's ID specifies whether it is active or not.

Name	ID Name	Block ID
Redstone Torch (active)	minecraft:redstone_torch	76
Redstone Torch (inactive)	minecraft:unlit_redstone_torch	75

Block data

See also: Data values

A redstone torch's block data specifies its orientation.

	DV	Description
	0	(unused)
	1	Facing east (attached to a block to its west)
	2	Facing west (attached to a block to its east)
	3	Facing south (attached to a block to its north)
	4	Facing north (attached to a block to its south)
	5	Facing up (attached to a block beneath it)

Block state

See also: Block states

Name	Value	Description
facing	up north east south west	The direction the top of the torch is facing.

History

Alpha
1.0.1				Added redstone torches.
1.1.0				Redstone torches can no longer be placed on tree leaves, but only in fancy mode.
1.0.2_01				Redstone torch, NOT gates, only signal into blocks above them or next to them.
1.2.0_02				Redstone torches no longer duplicate in SMP.
Beta
1.2_01				Fixed redstone torches acting really weird when placed.
1.3				Redstone torches are now used to craft redstone repeaters.
1.6.6				It is now possible to place redstone torches on glowstone.
1.7.3				Corrected a redstone torch duplication bug when using pistons.
Official release
1.2.1				'Burnout' time reduced from 100 ticks to 60 ticks.
1.3.1				Redstone torches can now be placed on upside-down slabs and stairs.
1.4.2				Redstone torches are destroyed when an anvil falls on them.
1.5		13w01a		Redstone torches are used to craft redstone comparators and activator rails.
1.7.2		13w37a		Block ID 75 (inactive redstone torch) was removed from the /give command.
1.8		14w07a		Redstone torches attached to the wall are now simply rotated versions of upright redstone torches, rather than having their own block model.
		14w25a		Burnt-out redstone torches no longer randomly fix themselves.
1.9		15w43a		A redstone torch generates as part of igloos.
Pocket Edition Alpha
0.13.0		build 1		Added redstone torches.
Console Edition
TU1	CU1	1.0	Patch 1	Added redstone torches.

Issues

Issues relating to “Redstone Torch” are maintained on the issue tracker. Report issues there.

Blocks

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