A copper bulb is a light-emitting block and a transparent block. It is made of copper and therefore oxidizes over time.
Obtaining
Breaking
Copper bulbs can be broken with stone pickaxes and any pickaxes higher than that. Mine the copper bulbs with anything else would drop nothing.
| Block | Copper Bulb | |
|---|---|---|
| Hardness | 3 | |
| Tool | ||
| Breaking time[A] | ||
| Default | 15 | |
| Wooden | 7.5 | |
| Stone | 1.15 | |
| Iron | 0.75 | |
| Diamond | 0.6 | |
| Netherite | 0.5 | |
| Golden | 1.25 | |
- ↑ Times are for unenchanted tools as wielded by players with no status effects, measured in seconds. For more information, see Breaking § Speed.
Natural generation
Copper bulbs can be found in a random state (lit on or off, any oxidation) in the trial chambers.
Crafting
Waxing
Copper bulbs can be turned into the respective waxed copper blocks by using a honeycomb item on them. Waxed copper bulbs do not oxidize and are identical to the non-waxed version.
Scraping
Using an axe on a waxed copper bulb turns it into the respective non-waxed copper bulb. In addition, using an axe on an exposed, weathered, or oxidized copper bulb reverts it one stage to a regular, exposed, or weathered copper bulb respectively.
Lightning strike
Non-waxed copper bulbs are completely deoxidized when struck by lightning, and other non-waxed copper bulbs nearby are deoxidized randomly.
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.
Issues
Issues relating to "Copper Bulb" are maintained on the bug tracker. Report issues there.