Copper Bulb
A redstone light source that toggles between lit and unlit each time it receives a redstone pulse. Its brightness decreases as the copper oxidizes.
Stack Size
Stack Size64
Durability
DurabilityN/A
Category
CategoryRedstone
Version Added
Version Added1.21
Item ID
Item IDcopper_bulb
Overview
Copper Bulb is a redstone component in the Redstone category of Minecraft, obtained through crafting it. A single inventory slot holds a full stack of 64 Copper Bulb.
As a redstone component, Copper Bulb is wired into contraptions and circuits; its behaviour is what gives builders the logic and timing to automate farms, doors, and machines. The game rates Copper Bulb at 3 hardness. Lit, Copper Bulb gives off light level 4. Stone is the minimum tier that actually collects Copper Bulb. Explosions work against a resistance of 6.
Crafting Recipe
Crafting4
How to Obtain
- Crafting
Notes
Acts as a redstone toggle (T flip-flop). Emits light 15 when unoxidized, dropping at each oxidation stage.
Frequently Asked Questions
How do you get Copper Bulb in Minecraft?
Copper Bulb is crafted at a Crafting Table using Block of Copper, Blaze Rod, and Redstone Dust, and each craft yields 4.
What is Copper Bulb used for?
A redstone light source that toggles between lit and unlit each time it receives a redstone pulse. Its brightness decreases as the copper oxidizes.
How many Copper Bulb can you stack?
Copper Bulb stacks up to 64 per inventory slot, so a full stack is 64 and a double chest holds 3,456 of them.
How long does Copper Bulb take to break?
Hardness 3, blast resistance 6: that is what the game stores for Copper Bulb. Because the numbers differ on Copper Bulb, one of the two routes is always quicker. Stone is the minimum tier that actually collects Copper Bulb. It is also a light source, worth 4 while lit. Java 26.2 lists Copper Bulb exactly this way.
When was Copper Bulb added to Minecraft?
Copper Bulb was added in version 1.21.