Copper Bulb

A copper bulb is a light-emitting block. It toggles on or off when it receives a redstone pulse, and does not need continuous power to emit light. Its light level depends on its state of oxidation.

Copper Bulb

• Unoxidized
• Exposed
• Weathered
• Oxidized

View all renders

Renewable	Yes
Stackable	Yes (64)
Tool
Blast resistance	6
Hardness	3
Luminous	Yes, when lit Unoxidized: 15 Exposed: 12 Weathered: 8 Oxidized: 4
Transparent	No
Flammable	No
Catches fire from lava	No

{
    "extratext": "[[#Renders|View all renders]]",
    "title": "Copper Bulb",
    "images": [
        "Copper Bulb.png",
        "Lit Copper Bulb.png",
        "Exposed Copper Bulb.png",
        "Lit Exposed Copper Bulb.png",
        "Weathered Copper Bulb.png",
        "Lit Weathered Copper Bulb.png",
        "Oxidized Copper Bulb.png",
        "Lit Oxidized Copper Bulb.png"
    ],
    "rows": [
        {
            "field": "Yes",
            "label": "(link to Renewable resource article, displayed as Renewable)"
        },
        {
            "field": "Yes (64)",
            "label": "Stackable"
        },
        {
            "field": "<span class=\"sprite-file\" style=\"height:32px;width:32px;--vertical-align:middle\">(link to File:Invicon Stone Pickaxe.png article, displayed as 32x32px|link=Stone Pickaxe|alt=|class=pixel-image|A stone pickaxe or better is required to mine this block)</span>",
            "label": "Tool"
        },
        {
            "field": "6",
            "label": "(link to Explosion#Blast resistance article, displayed as Blast resistance)"
        },
        {
            "field": "3",
            "label": "(link to Breaking#Blocks by hardness article, displayed as Hardness)"
        },
        {
            "field": "Yes, when lit <br> Unoxidized: 15 <br> Exposed: 12 <br> Weathered: 8 <br> Oxidized: 4",
            "label": "(link to Light article, displayed as Luminous)"
        },
        {
            "field": "No",
            "label": "(link to Opacity article, displayed as Transparent)"
        },
        {
            "field": "No",
            "label": "(link to Flammable article, displayed as Flammable)"
        },
        {
            "field": "No",
            "label": "Catches fire from (link to lava article, displayed as lava)"
        }
    ],
    "invimages": [
        "Copper Bulb",
        "Exposed Copper Bulb",
        "Weathered Copper Bulb",
        "Oxidized Copper Bulb",
        "Waxed Copper Bulb",
        "Waxed Exposed Copper Bulb",
        "Waxed Weathered Copper Bulb",
        "Waxed Oxidized Copper Bulb"
    ]
}

Waxed copper bulbs do not oxidize, but otherwise function identically.

Obtaining

Breaking

Copper bulbs can be mined only with a stone pickaxe or better. If a copper bulb is mined without the use of a valid pickaxe, it drops nothing.

Block	Copper Bulb Exposed Copper Bulb Weathered Copper Bulb Oxidized Copper Bulb
Hardness	3
Tool
Breaking time (sec)
Default	15
Wooden	7.5
Stone	1.15
Iron	0.75
Diamond	0.6
Netherite	0.5
Golden	1.25
Options
Efficiency	0
Haste	0 JEBE

Legend

• incorrect tool, drops nothing
• correct tool, drops nothing or something other than the block itself
• correct tool, drops the block itself
• italicized can be instant mined

Natural generation

Lit, waxed copper bulbs in random states of oxidation are generated in trial chambers.

Crafting

Name	Ingredients	[hide]Crafting recipe
Unwaxed Copper Bulb or Waxed Copper Bulb	Matching Unwaxed Block of Copper or Matching Waxed Block of Copper + Blaze Rod + Redstone Dust	44444444
Waxed Copper Bulb	Matching Unwaxed Copper Bulb + Honeycomb

Usage

Copper bulbs can be activated to emit light, with the light level emitted decreasing for each stage of oxidation. When the copper bulb receives a redstone pulse, it instantly toggles between its lit and unlit states.

Redstone component

A comparator can read the state of a copper bulb, and it emits a signal strength of 15 if the bulb is lit, regardless of oxidation. If the bulb is unlit, the comparator does not emit any power, allowing this comparator and copper bulb combination to act as a compact T flip-flop.

While the copper bulb is receiving redstone power (either to toggle the bulb on or off) a red dot appears in the center of the block. An observer can detect this, and emits a signal when a copper bulb becomes powered or unpowered.

Oxidation

Non-waxed copper bulbs have four stages of oxidation (including the initial normal state). Lightning bolts and axes can remove the oxidation on copper bulbs. They can be waxed with honeycomb to prevent oxidation from progressing.

As the block begins to oxidize (exposed), it gets discolored and green spots begin to appear. As the oxidation continues (weathered), the block is a green color with brown spots. In the last stage (oxidized), the block is teal with several green spots.

The light level emitted by copper bulbs also changes depending on the stage of oxidation.

Oxidation level	Light level
Normal	15
Exposed	12
Weathered	8
Oxidized	4

Sounds

Generic

Java Edition:

[hide] v t e copper_bulb sound type
Sound	Subtitles	Source	Description	Resource location	Translation key	Volume	Pitch	Attenuation distance
	​Block broken	Blocks	Once the block has broken	block.copper_bulb.break	subtitles.block.generic.break​	1.0	0.8	16
	​Block placed	Blocks	When the block is placed	block.copper_bulb.place	subtitles.block.generic.place​	1.0	0.8	16
	​Block breaking	Blocks	While the block is in the process of being broken	block.copper_bulb.hit	subtitles.block.generic.hit​	0.25	0.5	16
	​Something falls on a block	Entity-Dependent	Falling on the block with fall damage	block.copper_bulb.fall	subtitles.block.generic.fall​	0.5	0.75	16
	​Footsteps	Entity-Dependent	Walking on the block	block.copper_bulb.step	subtitles.block.generic.footsteps​	0.15	1.0	16

Bedrock Edition:

[hide] v t e copper_bulb sound type
Sound	Source	Description	Resource location	Volume	Pitch
	Blocks	Once the block has broken	break.copper_bulb	1.0	0.8
	Blocks	When the block is placed	place.copper_bulb	1.0	0.8
	Blocks	While the block is in the process of being broken	step.copper_bulb​​	1.0	0.5
	Blocks	Falling on the block with fall damage	step.copper_bulb​​	1.0	1.0
	Blocks	Walking on the block	step.copper_bulb	1.0	1.0
	Blocks	Jumping from the block	step.copper_bulb	0.12	1.1
	Blocks	Falling on the block without fall damage	step.copper_bulb	1.0	1.0

Unique

Waxing

Java Edition:

[hide] v t e Sounds
Sound	Subtitles	Source	Description	Resource location	Translation key	Volume	Pitch	Attenuation distance
	​Wax off	Blocks	When an axe unwaxes a copper bulb	item.axe.wax_off	subtitles.item.axe.wax_off​	1.0	Varies	16
	​Wax on	Blocks	When a honeycomb waxes a copper bulb	item.honeycomb.wax_on	subtitles.item.honeycomb.wax_on​	1.0	Varies	16
	​Axe scrapes	Blocks	When an axe deoxidizes a copper bulb	item.axe.scrape	subtitles.item.axe.scrape​	1.0	Varies	16

Bedrock Edition:

[hide] v t e Sounds
Sound	Source	Description	Resource location	Volume	Pitch
	Friendly Creatures	When an axe unwaxes a copper bulb	copper.wax.off	1.0	0.8-1.2
	Friendly Creatures	When a honeycomb waxes a copper bulb	copper.wax.on	1.0	0.8-1.2
	Friendly Creatures	When an axe deoxidizes a copper bulb	scrape	1.0	0.8-1.2

Toggling

Java Edition

[hide]Sounds
Sound	Subtitles	Source	Description	Resource location	Translation key	Volume	Pitch	Attenuation distance
	​Copper Bulb turns on	Blocks	When a copper bulb is toggled on	block.copper_bulb.turn_on	subtitles.block.copper_bulb.turn_on​	1.0	1.0	6
	​Copper Bulb turns off	Blocks	When a copper bulb is toggled off	block.copper_bulb.turn_off	subtitles.block.copper_bulb.turn_off​	1.0	0.75	6

Bedrock Edition:

[hide]Sounds
Sound	Source	Description	Resource location	Volume	Pitch
	Blocks	When a copper bulb is toggled on	block.copper_bulb.turn_on	1.0	1.0
	Blocks	When a copper bulb is toggled off	block.copper_bulb.turn_off	1.0	0.75

Data values

ID

Java Edition:

Name	Identifier	Form	Block tags	[hide]Translation key
Copper Bulb	copper_bulb	Block & Item	mineable/pickaxe needs_stone_tool	block.minecraft.copper_bulb
Exposed Copper Bulb	exposed_copper_bulb	Block & Item	mineable/pickaxe needs_stone_tool	block.minecraft.exposed_copper_bulb
Weathered Copper Bulb	weathered_copper_bulb	Block & Item	mineable/pickaxe needs_stone_tool	block.minecraft.weathered_copper_bulb
Oxidized Copper Bulb	oxidized_copper_bulb	Block & Item	mineable/pickaxe needs_stone_tool	block.minecraft.oxidized_copper_bulb
Waxed Copper Bulb	waxed_copper_bulb	Block & Item	mineable/pickaxe needs_stone_tool	block.minecraft.waxed_copper_bulb
Waxed Exposed Copper Bulb	waxed_exposed_copper_bulb	Block & Item	mineable/pickaxe needs_stone_tool	block.minecraft.waxed_exposed_copper_bulb
Waxed Weathered Copper Bulb	waxed_weathered_copper_bulb	Block & Item	mineable/pickaxe needs_stone_tool	block.minecraft.waxed_weathered_copper_bulb
Waxed Oxidized Copper Bulb	waxed_oxidized_copper_bulb	Block & Item	mineable/pickaxe needs_stone_tool	block.minecraft.waxed_oxidized_copper_bulb

Bedrock Edition:

Name	Identifier	Numeric ID	Form	Item ID	[hide]Translation key
Copper Bulb	copper_bulb	1031	Block & Giveable Item	Identical (Numeric: -776)	tile.copper_bulb.name
Exposed Copper Bulb	exposed_copper_bulb	1032	Block & Giveable Item	Identical (Numeric: -777)	tile.exposed_copper_bulb.name
Weathered Copper Bulb	weathered_copper_bulb	1033	Block & Giveable Item	Identical (Numeric: -778)	tile.weathered_copper_bulb.name
Oxidized Copper Bulb	oxidized_copper_bulb	1034	Block & Giveable Item	Identical (Numeric: -779)	tile.oxidized_copper_bulb.name
Waxed Copper Bulb	waxed_copper_bulb	1035	Block & Giveable Item	Identical (Numeric: -780)	tile.waxed_copper_bulb.name
Waxed Exposed Copper Bulb	waxed_exposed_copper_bulb	1036	Block & Giveable Item	Identical (Numeric: -781)	tile.waxed_exposed_copper_bulb.name
Waxed Weathered Copper Bulb	waxed_weathered_copper_bulb	1037	Block & Giveable Item	Identical (Numeric: -782)	tile.waxed_weathered_copper_bulb.name
Waxed Oxidized Copper Bulb	waxed_oxidized_copper_bulb	1038	Block & Giveable Item	Identical (Numeric: -783)	tile.waxed_oxidized_copper_bulb.name

Block states

Java Edition:

Name	Default value	Allowed values	[hide]Description
lit	false	false true	Whether the copper bulb is lit.
powered	false	false true	Whether the copper bulb is powered.

Bedrock Edition:

Name	Metadata Bits	Default value	Allowed values	Values for Metadata Bits	[hide]Description
lit	Not Supported	false	false true	Unsupported	Whether the copper bulb is lit.
powered_bit	Not Supported	false	false true	Unsupported	Whether the copper bulb is powered.

Achievements

[hide]
Icon		Achievement	In-game description	Actual requirements (if different)	Gamerscore earned	Trophy type (PS)
PS4	Other
		Wax on, Wax off	Apply and remove Wax from all the Copper blocks!!!	Wax and de-wax each oxidation stage of the 4 original copper blocks in the game: blocks of copper, cut copper blocks, cut copper stairs, and cut copper slabs.	30	Silver

Advancements

Icon	Advancement	In-game description	Actual requirements (if different)
	Lighten Up	Scrape a Copper Bulb with an Axe to make it brighter	Use any type of axe on a lit copper bulb that is at least partially oxidized.
	Wax Off	Scrape Wax off of a Copper block!	Use an axe to revert any of these 9 waxed variants of copper blocks: The block can be in any of its four oxidation stages.
	Wax On	Apply Honeycomb to a Copper block!	Wax any of these 9 waxable copper block variants using a honeycomb: The block can be in any of its four oxidation stages, but cannot already be waxed.

History

October 15, 2023							Copper bulbs were announced at Minecraft Live 2023 as part of the trial chambers.
October 17, 2023							Kingbdogz revealed in a tweet that weathered copper bulbs would give off a light level of eight.
October 24, 2023							More unlit variants of the copper bulbs were revealed.
[hide]Java Edition
1.20.3 Experiment Update 1.21			23w43a				Added copper bulbs behind the "Update 1.21" experimental data pack.
							Currently, copper bulbs toggle between lit and unlit states with a delay of one game tick.
			23w45a				Now generates naturally within trial chambers.
			23w46a				Toggling between lit and unlit states no longer has a delay.
1.21			24w18a				Copper bulbs are now available without using the "Update 1.21" experimental data pack.
			24w19a				Replaced the sounds for "turn off" and "turn on" with one "toggle" sound.
1.21.4			24w46a				The lit powered texture of exposed copper bulbs has been changed to fix two inconsistent pixel colors.
[hide]Bedrock Edition
1.20.50 Experiment Update 1.21			Preview 1.20.50.22				Added copper bulbs behind the "Update 1.21" experimental toggle.
1.20.60 Experiment Update 1.21			Preview 1.20.60.20				Now generates naturally within trial chambers.
1.21.0			Preview 1.21.0.22				Copper bulbs are now available without using the "Update 1.21" experimental toggle.
1.21.50			Preview 1.21.50.20				Copper bulbs now require a stone pickaxe or better for drops and quick mining.
1.21.60			Preview 1.21.60.21				The lit powered texture of exposed copper bulbs has been changed to fix two inconsistent pixel colors.

Issues

Issues relating to "Copper Bulb" are maintained on the bug tracker. Issues should be reported and viewed there.

Java Edition

• MC-275014 – Weathered and oxidized copper bulbs cast stronger shadows on themselves when lit with smooth lighting enabled
• MC-275294 – Trial chambers chamber_2 template has a copper bulb behind the wall on the north east and south east side
• MC-275295 – Trial chambers wall dispensers' copper bulbs are always unoxidized
• MC-296127 – The geyser room of trial chambers always has unoxidized copper bulbs

Bedrock Edition

• MCPE-180321 – Almost all Copper Bulbs in Trial Chambers are specifically the weathered variant
• MCPE-176375 – Unused sound event "hit.copper_bulb" and "fall.copper_bulb"
• MCPE-176387 – Non-waxed copper bulb placed with /fill commands are switched on
• MCPE-184810 – All copper bulbs in "eruption" trial chambers are unoxidized
• MCPE-185205 – Missing Copper Bulb in Trial Chambers

Gallery

Renders

Powered

• 

  Powered copper bulb

• 

  Powered exposed copper bulb

• 

  Powered weathered copper bulb

• 

  Powered oxidized copper bulb

• 

  Lit powered copper bulb

• 

  Lit powered exposed copper bulb

• 

  Lit powered weathered copper bulb

• 

  Lit powered oxidized copper bulb

Unpowered

• 

  Copper bulb

• 

  Exposed copper bulb

• 

  Weathered copper bulb

• 

  Oxidized copper bulb

• 

  Lit copper bulb

• 

  Lit exposed copper bulb

• 

  Lit weathered copper bulb

• 

  Lit oxidized copper bulb

Screenshots

• 

  All blocks that can oxidize, including copper bulbs.

• 

  A comparator reading a lit copper bulb and outputting a redstone signal.

Mojang screenshots

• 

  Brandon Pearce scraping a copper bulb.

• 

  Copper bulbs seen in a trial chamber.

• 

  Unlit variant of oxidized copper bulbs seen in the village that Agnes visits at Minecraft Live 2023.

• 

  More unlit variants of the copper bulbs revealed on an official article at minecraft.net

In other media

• 

  Kai scraping a copper bulb.

• 

  Artwork featuring copper bulb.