Copper Bulb is a new block added in 1.21. It is a redstone light emitter and a transparent block. It is made of copper and oxidizes over time.
Obtaining[]
Breaking[]
Copper Bulbs can be broken with Stone, Iron, Diamond and Netherite Pickaxes.
Natural generation[]
Copper Bulbs can be found in a random state (lit on or off, any oxidation) in the Trial Chambers
Crafting[]
| Ingredients | Crafting recipe |
|---|---|
| matching Copper Blocks + Blaze Rod + Redstone Dust |
| Ingredients | Crafting recipe |
|---|---|
| matching Copper bulb + Honeycomb |
Usage[]
Copper bulbs are redstone components that emit light while triggered. A comparator can read the state of a copper bulb. They also work as a T flip-flop.