Redstone Lamp

"Lamp" redirects here. For the other light source, see Lantern.

Redstone Lamp

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Renewable	Yes
Stackable	Yes (64)
Tool	Any tool
Blast resistance	0.3
Hardness	0.3
Luminant	Yes (15) (when lit)
Transparent	Partial (when lit)
Flammable	No
Catches fire from lava	No

A redstone lamp is a block that produces light when activated with a redstone signal.

Obtaining

Breaking

A redstone lamp can be mined by hand or with any tool, dropping itself as an item.

Block	Redstone Lamp
Hardness	0.3
Breaking time
Default	0.45

Crafting

Ingredients	Crafting recipe
Redstone Dust + Glowstone

Usage

A redstone lamp can be used to produce switchable light.

Redstone lamps are redstone mechanisms and can be activated by:

• An adjacent active power component, including above or below: for example, a redstone torch (except that a redstone torch does not activate a redstone lamp it is attached to), a block of redstone, a daylight sensor, etc.
• An adjacent powered block (for example, an opaque block with an active redstone torch under it), including above or below
• A powered redstone comparator or redstone repeater facing the redstone lamp
• Adjacent powered redstone dust configured to point at the redstone lamp (or on top of it) or directionless; a redstone lamp is not activated by adjacent powered redstone dust that is configured to point away from it.

A redstone lamp activates instantly, but takes 2 redstone ticks to turn off (4 game ticks, or 0.2 seconds barring lag).

An active redstone lamp produces block light 15. An inactive redstone lamp produces no light.

A redstone lamp acts like an opaque block; torches and levers can be attached to it, it blocks sky light, mobs suffocate in it, and it conducts redstone power.

Data values

ID

Java Edition:

Name	Namespaced ID	Form	Translation key
Redstone Lamp	redstone_lamp	Block & Item	block.minecraft.redstone_lamp

Bedrock Edition:

Name	Namespaced ID	Numeric ID	Form	Translation key
Redstone Lamp	redstone_lamp	123	Block & Item	tile.redstone_lamp.name
Lit Redstone Lamp	lit_redstone_lamp	124	Block	tile.lit_redstone_lamp.name

Block states

See also: Block states

History

November 11, 2010					Notch claimed that "lamps" had actually stood for "Light A-givin' Material Portal Side... the yellow stone thing".
Java Edition
1.2.1		12w07a			32px 32px Added redstone lamps.
		1.2			32px 32px The texture of redstone lamps has now been darkened, and the texture of lit redstone lamps has been slightly changed.
1.2.4		release			A 2-tick delay to deactivation has been added to redstone lamps.
?					Levers can be placed on redstone lamps.
January 11, 2018					32px 32px Jasper Boerstra tweets an image of updated redstone lamp textures.
1.13		17w47a			The different block IDs for the redstone lamp has now been merged into one ID.
					A lit block state has been added to redstone lamps.
					Prior to The Flattening, these blocks' numeral IDs were 123 and 124.
1.14		18w43a			32px 32px The texture of redstone lamps has now been changed.
Pocket Edition Alpha
v0.13.0		build 1			32px 32px Added redstone lamps.
Bedrock Edition
?					Levers can be placed on redstone lamps.
1.10.0		beta 1.10.0.3			32px 32px The texture of redstone lamps has now been changed.
Legacy Console Edition
TU12	CU1	1.0	Patch 1	1.0.1	32px 32px Added redstone lamps.
PlayStation 4 Edition
1.90					32px 32px The texture of redstone lamps has now been changed.
New Nintendo 3DS Edition
0.1.0					32px 32px Added redstone lamps.

Lit redstone lamp "item"

Main article: Direct item forms of blocks

Java Edition
1.2.1		12w07a			32px Lit redstone lamps have an item form corresponding to its block ID, which uses the cube model with the lit texture. It can be obtained via inventory editors with numeric item ID 124.
					Interestingly, unlike most items of this type, lit redstone lamps are themselves dropped by lit redstone lamps.
					The item is generically called "Redstone Lamp".
					Pick Block on a lit redstone lamp block would highlight any existing lit redstone lamp blocks in the hotbar, rather than normal redstone lamps.
		1.2			32px The lit redstone lamp item has changed with the lit redstone lamp texture's change.
1.2.4		release			Lit redstone lamps now drop normal redstone lamp items when broken in most cases. They can still be obtained by breaking one with a Silk Touch enchanted tool.
1.2.5					Pick Block on a lit redstone lamp will now always return a normal, unpowered redstone lamp.
1.3.1		12w16a			Lit redstone lamp items can now be obtained in singleplayer worlds via the /give command using the respective numeric ID.
		12w22a			32px Block items have been flipped back to their pre-Beta 1.6 orientations.
1.4.2		12w34a			32px Block items have been brightened to an almost unnoticable degree.
1.7.2		13w37a			The direct item form of lit redstone lamps has been removed from the game. It can no longer exist as an item in any way, only as a placed block.
					The ability for lit redstone lamps to drop lit redstone lamp items via Silk Touch has not been removed, however. As a result, attempting to obtain a lit redstone lamp this way in this version crashes the game with a NullPointerException.
		13w38a			Lit redstone lamp blocks now drop unlit items regardless of tool.[verify]
Bedrock Edition
?					Lit redstone lamps probably exist as an item.

Issues

Issues relating to "Redstone Lamp" are maintained on the bug tracker. Report issues there.

Trivia

• Multiple tiled redstone lamps produce a pattern that resembles the truncated square tiling t{4,4}.
• Redstone lamps are transparent on maps.

Gallery

• Redstone Lamp Day (Switched Off).png

  A redstone lamp shown during the day that is switched off.

• Redstone Lamp Day (Switched On).png

  A redstone lamp shown during the day that is switched on.

• Redstone Lamp Evening (Switched Off).png

  A redstone lamp shown during the evening that is switched off.

• Redstone Lamp Evening (Switched On).png

  A redstone lamp shown during the evening that is switched on.

• Redstone-lamp-and-wire.png

  Demonstrating how wire powers redstone lamps.

• Redstone-lamp-and-repeaters.png

  Demonstrating how repeaters power redstone lamps.

• Redstone-lamp-powered-block.png

  Demonstrating how a solid block powers redstone lamps.

Since lamps themselves are solid blocks, they power other lamps. This causes the cross-shaped patterns of lit lamps.

• Redstone-lamp-torch-floor-no-block-above.png

  Floor torch with no lamp above it.

• Redstone-lamp-torch-floor-with-block-above.png

  Floor torch with a lamp above it.

• Redstone-lamp-torch-wall-no-block-above.png

  Wall torch with no lamp above it.

• Redstone-lamp-torch-wall-with-block-above.png

  Wall torch with a lamp above it.

• Creativity of redstone lamps.png

  How you may use the flashing redstone lamps mechanism.

A glowing roof can be done by laying wire across the blocks, or lining the top of the lamps with redstone blocks. Floors and walls are also do-able. A glowing floor can be created by using "knight's move" shape underneath the floor with torches. A glowing wall uses wall-mounted torches that power blocks above them.

• Redstone-lamp-floor.png

  A redstone lamp floor.

• Redstone-lamp-wall.png

  A redstone lamp wall.

References

Redstone

View at: Template:Redstone/content [edit]